Rare in the world! One tunnel, eight kinds of poison gas, but they go against the trend

  Cctv newsIn Lincang, Yunnan Province, deep in the boundless mountains, there is a 10,000-meter-long tunnel under construction at the construction site of the China-Myanmar International Passage, named "Hongdoushan Tunnel". Because of the special geological conditions, there are 8 kinds of toxic gases in the tunnel, accompanied by high temperature of 40 degrees, water inrush and mud outburst.

  This is the boundless mountain, which stretches for hundreds of miles, majestic and steep, and the only China-Myanmar international corridor leading to Myanmar is under construction in China, which passes through here. Among them, the control project, Hongdoushan Tunnel, is located in the hinterland of the boundless mountains, adjacent to the Lancang River, with a maximum buried depth of 1020 meters. But no one expected that the mysterious and beautiful boundless mountains are rich in eight kinds of toxic and harmful gases, such as hydrogen sulfide, carbon monoxide and carbon dioxide, due to extremely special geological conditions. The first echelon workers in charge of tunnel excavation must wear gas masks during construction.

  The toxic gas in the tunnel seems to be trapped in balloons and hidden in the rocks of the boundless mountains. Once these toxic balloons are punctured during construction, the toxic gas will explode. In 2017, the construction team that just entered the site for one year, due to insufficient research and treatment experience of toxic gases in the tunnel, led to a gas outburst accident in Hongdoushan Tunnel. Subsequently, two-thirds of employees applied for evacuation from the construction site, and the project was once at a standstill.

  Just then, Zhao Yu, who has 20 years of experience in tunnel construction, was ordered to come here.

Zhao Yu, manager of Dalin Railway Project Department of China Railway 10th Bureau.

Zhao Yu, manager of Dalin Railway Project Department of China Railway 10th Bureau.

  Zhao Yu, manager of Dalin Railway Project Department of China Railway 10th Bureau.Everyone has no retreat, so we leaders, from myself, have no retreat and must stand in the front line.

  Zhao Yu and Quan Fei, who was demoted to deputy chief engineer because of the sudden explosion accident, gathered the employees in the project team who had not been evacuated and formed a new team. Everyone should go against the trend.

  A tunnel contains many mysterious poisonous gases. This kind of difficulty, which is rare in the world, is a rare opportunity in the eyes of the brave. The new team invited experts from various fields to conduct in-depth investigation, and must thoroughly understand the poisonous gas in Hongdoushan Tunnel.

  After investigation by experts, the extremely dangerous area of toxic and harmful gases in Hongdoushan Tunnel reached 5764 meters, accounting for more than half of the total length of the tunnel. Everyone agrees that the rare geological environment conditions and the complex and changeable gas composition of Hongdoushan Tunnel have exceeded the cognitive level of current geological exploration technology, and its prevention measures are still in the stage of research and exploration.

  This conclusion of the expert group means that the construction party cannot get more help from the past experience and technology.

  Every step is exploration, but once the road is explored, it is the way to get rid of the predicament.

  After the tunnel air is thoroughly disinfected and ventilated, the second echelon personnel can take off their gas masks and enter the construction site. Eight kinds of toxic gas dilemmas in Hongdoushan Tunnel have finally been broken through in actual combat.

  On August 17th, last year, there was another danger of water gushing in the No.2 inclined shaft of the tunnel. Although the construction can be continued after 37 days of pumping and drainage, now, the constantly gushing water will still flood some construction areas, and the workers need to stand waist-deep in the water all the time.

  Eight kinds of poisonous gas, high temperature and sudden mud gushing are not only the first time in the history of tunnel construction in China, but also rare in the world. The team of Hongdoushan Tunnel has constantly solved various rare problems in the construction, but it has also accumulated very valuable experience and technology for tunnel construction in China.

  In June this year, the first batch of patents and academic papers based on the construction of Hongdoushan Tunnel will be published soon. By the end of this year, the scientific research results involving six patents will also be fully launched.

  At present, the construction of Hongdoushan Tunnel has exceeded 3,000 meters, and the key project of China-Myanmar International Corridor — — The construction of Dalin Railway is also progressing steadily. After it is completed and opened to traffic in 2021, it will play a positive role in improving the railway network in western China and highlighting the interconnection of infrastructure between Yunnan and neighboring countries.

Popular science | What is air pollution? What are the main pollution sources?

atmospheric pollution

What is it?

Air pollution is a phenomenon that some substances enter the atmosphere due to human activities or natural processes, showing sufficient concentration for enough time, and thus endangering human comfort, health and welfare or the environment.

Air pollutants enter the atmosphere (input) from man-made or natural sources, participate in the circulation process of the atmosphere, and are removed (output) from the atmosphere through chemical reactions, biological activities and physical sedimentation after a certain retention time. If the output rate is less than the input rate, it will be relatively concentrated in the atmosphere, resulting in an increase in the concentration of a substance in the atmosphere. When the concentration rises to a certain extent, it will directly or indirectly cause acute and chronic harm to people, organisms or materials, and the atmosphere will be polluted.

1. Sources of air pollutants

(1) Natural sources of air pollution

Volcanic eruption: H2S, CO2, CO, HF, SO2 and volcanic ash are emitted.

Forest fire: CO, CO2, SO2, NO2, HC, etc. are emitted.

Natural dust: wind sand, soil dust, etc.

Forest plant release: mainly terpene hydrocarbons.

Wave droplet particles: mainly sulfate and sulfite.

In some cases, natural sources are more important than man-made sources. According to relevant statistics, 93% of global nitrogen emissions and 60% of sulfur oxide emissions come from natural sources.

(2) Man-made pollution sources

The atmospheric pollution source usually refers to the source of pollutants transported to the atmosphere by human activities. Man-made pollution sources of the atmosphere can be summarized as the following four aspects:

Fuel combustion: the combustion process of fuels (coal, oil, natural gas, etc.) is an important source of pollutants to the atmosphere. The main component of coal is carbon, and it contains hydrogen, oxygen, nitrogen, sulfur and metal compounds. In addition to a large amount of smoke and dust, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides, organic compounds, smoke and dust and other substances are also formed during the combustion process.

Emissions from industrial production processes: such as hydrogen sulfide, carbon dioxide, sulfur dioxide and nitrogen oxides emitted by petrochemical enterprises; Sulfur dioxide, nitrogen oxides and dust containing heavy metal elements discharged by nonferrous metal smelting industry; Fluoride emitted by phosphate fertilizer plants; Sulfur dioxide, nitrogen oxides, hydrogen chloride and various acidic gases discharged from acid-base salinization industry; The iron and steel industry discharges dust, sulfur oxides, cyanide, carbon monoxide, hydrogen sulfide, phenol, benzene and hydrocarbons in the process of ironmaking, steelmaking and coking. The composition of pollutants is closely related to the nature of industrial enterprises.

Emissions during transportation: The tail gas emitted by automobiles, ships and airplanes is the main source of air pollution. The exhaust gas emitted by internal combustion engine contains carbon monoxide, nitrogen oxides, hydrocarbons, oxygen-containing organic compounds, sulfur oxides and lead compounds.

Emissions from agricultural activities: when pesticides are applied in the field, some pesticides will escape into the atmosphere in the form of dust and other particles, and those remaining on crops or adhering to the surface of crops can still volatilize into the atmosphere. Pesticides entering the atmosphere can be absorbed by suspended particles and transported to various places with the airflow, causing atmospheric pesticide pollution. In addition, there are straw burning.

China has enacted "People’s Republic of China (PRC) Environmental Protection Law" and formulated national and regional "waste gas emission standards" to reduce air pollution and protect people’s health.

2. Harm of air pollution

(1) Harm to human body

The harm of air pollutants to human body is various, mainly manifested in respiratory diseases and physiological dysfunction, as well as the irritation of mucous membranes such as eyes and nose, which is a chronic factor causing asthma in the elderly. Insufficient lung qi leads to physical decline.

The influence of air pollution on human body is firstly uncomfortable, then there is a reversible reaction in physiology, and then there are acute harmful symptoms. The harm of air pollution to people can be roughly divided into three types: acute poisoning, chronic poisoning and carcinogenesis.

1. Acute poisoning

When the concentration of pollutants in the air is low, it usually does not cause acute poisoning, but under some special conditions, such as special accidents in the production process of factories, a large number of harmful gases leaking out, and sudden changes in external meteorological conditions, it will cause acute poisoning of people. For example, methyl isocyanate leaked from Pabor pesticide plant in India directly harmed human body, with 2,500 people killed and more than 100,000 injured.

2. Chronic poisoning

The chronic toxic effect of air pollution on human health is mainly manifested in the phenomenon that the prevalence rate increases after pollutants are exposed to human body in low concentration for a long time. The incidence of lung cancer among urban residents in China is very high, the highest of which is in Shanghai, and the respiratory diseases of urban residents are significantly higher than those in suburbs.

3. Carcinogenesis

This is the result of long-term influence, because pollutants act on the body for a long time, damaging the genetic material in the body and causing mutation. If the germ cells mutate, all kinds of abnormalities will appear in the offspring, which is called teratogenicity. If the genetic material and genetic information of organism cells suddenly change, it is also called mutagenicity; If the tumor is induced, it is called carcinogenesis. The "cancer" referred to here includes benign tumors and malignant tumors. Carcinogens in the environment can be divided into chemical carcinogens, physical carcinogens and biological carcinogens. The process of carcinogenesis is quite complicated, generally including initiation stage and growth promotion stage. Factors that can induce tumors are collectively referred to as carcinogenic factors. Tumors caused by long-term exposure to carcinogenic factors in the environment are called environmental tumors. Air pollution will reduce people’s life span.

(2) Harm to plants

Air pollutants, especially sulfur dioxide and fluoride, are very harmful to plants. When the concentration of pollutants is very high, it will cause acute harm to plants, causing damage to the surface of plant leaves, or directly causing leaves to wither and fall off; When the concentration of pollutants is not high, it will cause chronic harm to plants, make the leaves of plants fade green, or there are no harmful symptoms on the surface, but the physiological functions of plants have been affected, resulting in the decline of plant yield and deterioration of quality.

(3) Harm to the climate

Air pollutants can also affect weather and climate. Particulate matter reduces atmospheric visibility and reduces the amount of solar radiation reaching the ground. Especially in large industrial cities, the sunlight is 40% less than normal when the smoke is not scattered. The pollutants in the upper atmosphere, such as nitrogen oxides, hydrocarbons and chlorofluorocarbons, decompose ozone in large quantities, causing the "ozone hole" problem, which has become the focus of global attention.

The increase of greenhouse gases such as carbon dioxide will lead to the warming of the earth’s atmosphere and the increase of global weather disasters. Another example is the increase of aerosol particles such as smoke and dust, which will increase atmospheric turbidity, weaken solar radiation and affect the long-wave radiation of the earth, which may lead to abnormal weather and climate.

(1) Reduce the amount of solar radiation reaching the ground: A large number of smoke particles discharged into the atmosphere from factories, power stations, automobiles and household heating equipment make the air very turbid, which blocks the sunlight and reduces the amount of solar radiation reaching the ground. According to observation and statistics, in the days when the smoke is not scattered in large industrial cities, the amount of direct sunlight hitting the ground is reduced by nearly 40% compared with the days without smoke. In cities with serious air pollution, it will lead to poor growth and development of people, animals and plants due to lack of sunlight every day.

② Increasing atmospheric precipitation: many of the particles discharged from large industrial cities have the function of condensation nuclei of water vapor. Therefore, when there are other precipitation conditions in the atmosphere, there will be precipitation weather. In the downwind areas of big industrial cities, there is more precipitation.

③ Acid rain: Sometimes, the rain falling from the sky contains sulfuric acid. This kind of acid rain is formed by the oxidation of sulfur dioxide, a pollutant in the atmosphere, to form sulfuric acid, which falls with the precipitation in nature. Sulfuric acid rain can destroy large areas of forests and crops, corrode and break paper products, textiles and leather products, deteriorate metal antirust coatings and reduce their protection, and corrode and pollute buildings.

3. How to prevent and control air pollution in life

1. Don’t litter; Travel by bus and subway as much as possible, reduce the use of private cars, and buy new energy vehicles; Participate in greening activities such as planting trees; Private cars are equipped with tail gas treatment devices, and lubricating oil is used to fully burn fuel and reduce harmful gas emissions.

2. On holidays, instead of setting off fireworks and firecrackers, electronic firecrackers can be used instead, no outdoor barbecue, no burning of straw and leaves, and less coal burning to reduce air pollution.

3. Reduce the use of freon-containing air conditioners and refrigerators, and suggest purchasing new energy-saving products.

4. Reduce going out in foggy weather (according to relevant explanations, Ozone refers to ozone, while PM2.5 refers to fine suspended particles with a diameter of less than 2.5 microns, also known as particles that can enter the lungs. This suspended particle is a "health killer" in the air. Extensive damage to respiratory system, heart and blood system).

5. Wear a mask when going out (factors such as mask material, service life and technical level are the criteria for defining the quality of masks. If consumers have no special needs, they don’t have to snap up "concept masks" marked with various functions).

6. It is everyone’s responsibility to prevent and control air pollution. It is the right given to every citizen by law to report and accuse acts that pollute and destroy the environment. When encountering uncivilized acts that pollute the atmosphere, actively report them, jointly safeguard the beautiful blue sky and build a happy Zhuzhou!

Source: Baidu Encyclopedia

Eight newly-opened special spas in the world interpret luxury in a low-key way (5)

New york Halo spa

Experience the magic of salt SPA in salt cave
Experience the magic of salt SPA in salt cave

 

    Since salt is used as a spa, why should I come here and go directly to the seaside? To tell you the truth, Ray thinks so, too. However, it is said that "this newly-opened Halo spa in new york can treat asthma and drive away the cold". I can’t help but make little Ray curious.

    Located in Manhattan, Halo Spa is the first of its kind in the United States, and it acts like a salt cave in Eastern Europe (like Slovakia).

    Ray told me, "Halo spa also has a children’s room. The children’s room looks like a fairyland, which is very suitable for bringing children." Salt is imported from Ukraine, and it is on the walls and floors, and there are fine salt particles in the air, just like salt spray.

    "I can even smell a smell of salt when I bring my daughter," Ray has always been a man with strong action and keen to reveal secrets. "Maybe I’m afraid that children can’t stay, and there are many toys, rocking wooden horses and TVs in it."

    It is said that this therapy is very popular in Israel. Moreover, it is said that salt therapy can also treat skin diseases, heart diseases, vascular diseases and relieve fatigue and depression, and it is also helpful to quit smoking. That said, I think it should be promoted vigorously in China, so that adults and children don’t have to worry about catching a cold in cold places.

 

London The Dorchester Spa

Meet the popular SPA of Hollywood stars
Meet the popular SPA of Hollywood stars

 

    The renovated and reopened Dorchester spa is regarded as the best spa in Britain in 2010. The location is good. The environment in the Mayflower District is absolutely unparalleled in London. The Dorchester Hotel is also famous as the "best business hotel". It is said that each guest has three employees to serve it.

    Gillian, a friend from London, described it as "I know this newly renovated spa is good, but I didn’t expect it to be so good". Unlike traditional spa rooms, which all have a front desk, Dorchester spa is led by a special person directly through a dark aisle to a rest area, with a platinum mirror screen behind it. The highlight of the design is the curtain made of 72,000 South African pearls designed by Linton. Luxury is naturally everywhere, such as sofas and beds inside. If you want to show off, the spa room can really be made into a brand museum. Care products are no exception. Body care products include Vaishaly,Carol Joy London (ask Londoners about the popularity of these two products) and Kerstin Florian (first appeared in the spa room in London).

    Some details in the SPA are also very popular, such as the sound insulation effect of the nursing room is very good. This point was carefully considered when redecorating.

    Dorchester Hotel is a favorite hotel of Hollywood stars, so maybe when you are resting in public space, you will be sitting next to a star who has been in the limelight recently. When Harry Potter and The Lord of the Rings premiered in London, hotels were the first choice for holding receptions and staying with superstars. Sometimes you have to think, isn’t this luxury a bit too much? 

Liu Yingshu: "Walking Textbook" did not hesitate to conquer "Wind Volcano"

Practice the ambition of serving the country with a pure heart

  Liu yingshu:"Walking Textbooks" did not hesitate to conquer "Wind Volcano"

  Reporter: viki. 

  

  "The life of the road-building army is facing a serious threat. Can you build a large oxygen station? The headquarters and University of Science and Technology Beijing formed a joint research team to attack this new problem. Scientific and technical personnel forgot to eat and sleep, experimented day and night, and tackled key problems. After more than 200 failures, the world’s first large-scale plateau oxygen station was built! "

  This is a vivid description of the fifth-grade Chinese text "Repairing the Railway to Lhasa" published by People’s Education Press. The plateau oxygen station mentioned in it was successfully developed and applied by Professor Liu Yingshu, director of the Institute of Gas Separation Engineering of University of Science and Technology Beijing, as a technical leader, and created.fiveyear15Ten thousand people built a world miracle of zero death from altitude sickness. And this is just an achievement of his major technical work for many years.

  Going to the plateau and going to the laboratory, he will work more than a week when he is in his sixties next year.60Hours, I worked hard to carry out the research and development of major scientific and technological topics related to the national economy and people’s livelihood, and maintained a high-yield scientific research life year after year.

  Overcoming cold and lack of oxygen makes Qinghai-Tibet Railway a miracle.

  18Years ago, when undertaking the oxygen production project of the Qinghai-Tibet Railway, knowing that the site conditions were difficult and there was no precedent in the world for reference, Liu Yingshu agreed without hesitation.

  In order to solve the problem of hypoxia in plateau construction, he ran at both the scene and the school. I usually have classes at school on Wednesdays, fly to Xining on Thursdays, then charter a bus to Golmud, Wudaoliang and Tuotuo River, walk along the Qinghai-Tibet Highway, and carry out oxygen-making experiments at every military station with electricity, and then rush to Beijing on Monday.

  "When I arrived at Kunlun Mountain, my breath was dying; After five beams, I cried and shouted at my mother. On the wind volcano, the three souls have died. " This limerick vividly shows the harsh living environment in the local area. As the key control project of Qinghai-Tibet Railway, the full length of Fenghuoshan Tunnel is1338Meters, elevation of entrance rail surface.4905Rice, oxygen content is only in the mainland.50%The average annual temperature is below zero.sevenIt is the highest altitude and the longest permafrost tunnel in the world, and is called the forbidden zone of life.

  Working in such a thin air, even if the construction workers carry oxygen tanks, it is still not enough, and they are often bored just after lifting the equipment, and the construction progress is difficult to guarantee. Looking at the painful expression of the workers’ poor breathing, facing the eyes that everyone is looking forward to, Liu Yingshu, who has been steady on campus, decided to fight, designing, doing experiments, surveying and debugging day and night.

  When installing equipment at the south entrance of the tunnel, the water has been connected, but in the afternoon,threeThe heater hasn’t arrived yet. iffiveIf it doesn’t arrive before work, the temperature will drop sharply at night, and the water will be frozen. Equipment damage is one thing, and more importantly, it will delay the construction period and affect the oxygen inhalation of railway construction personnel. At this time, there is no communication equipment at the construction site, and the person in charge is in the headquarters of the north exit of the tunnel. It is necessary to take the road from the south exit to the north exit.2An hour. He was in a hurry and decided to climb the mountain and take a shortcut.

  from4900Climb to the foot of the mountain5400Climbing down the top of the mountain is not as pleasant as walking on the plain. The construction team leader accompanied him. Every five or six steps, the two men had to stop to catch their breath. The lack of oxygen caused their hearts to beat and jump, and they almost felt like jumping out. But time is pressing, and they dare not rest more, so they stop and go, trying their best to catch up.fourArrive at the headquarters before 8: 00 and solve the problem of the heater. That year, he had already41Years old.

  Going to the construction site for communication, field survey, equipment installation and debugging, troubleshooting … On such a business trip, he persisted for more than two years and went to the plateau for fifty or sixty times, sometimes living in a tent.twentyMany days.

  did2000Multi-group working condition experiments failed.200After many times, he finally overcame the problem that the low pressure on the plateau and the temperature difference between day and night greatly affected the oxygen production system, developed the high-altitude pressure swing adsorption oxygen production technology, and successfully developed the highest-altitude wind-volcano tunnel oxygen production station in the world at that time, with the oxygen concentration reaching.92%Above, the workers who can breathe smoothly have renewed their enthusiasm.

  The achievements were popularized and applied to the whole line of Qinghai-Tibet railway construction, creating15Ten thousand troops built a world miracle of zero death from altitude sickness, and the results of this project were obtained.2008National special prize for scientific and technological progress.

  Go to the plateau to leave the root cause of the disease and use a ventilator every night.

  The project was successful, but Liu Yingshu’s health paid a huge price. While doing scientific research and opening new courses, he was tired of lumbar disc herniation and once lay at home.twentyDon’t come to bed for many days. Later, every time he went to the plateau again, he had to go to the hospital for bonesetting massage before he could start.

  What is more serious than lumbar disease is that he frequently goes in and out of the plateau without normal rest and adjustment, and the autonomic nerve is disordered, suffering from sleep apnea hypopnea syndrome.2002He fell ill for the first time in,2003When the year is serious, his sleep for one night will appear.270More than one apnea, the longest lasting nearly.oneMinutes. He had to use the ventilator, and it continues to this day, and he has to take it with him when he is on a business trip, otherwise he will be awakened, his heart will be extremely uncomfortable, and even he will suffocate and endanger his life.

  Although it left an irreversible root cause, Liu Yingshu did not regret it. What he cares more about is that the project has brought huge social benefits, saved countless lives, and spread the concept of oxygen inhalation to the plateau. More and more local barracks, hotels, office buildings and other places have installed oxygen-making equipment, benefiting people.100Tens of thousands.

  "People are lucky to be able to do these things all their lives. They always have to pay a little, and it is worthwhile for individuals to be wronged." Lack of oxygen leads to physical discomfort, but it can’t stop him from being full of lofty sentiments. Infected by the spirit of the builders of the Qinghai-Tibet Railway, he wrote a poem: "Holding the red day and stepping on the stars day and night, the roof of the world is in Changhong. Ice-eating style resists hypoxia, and contemporary foolish men give birth to gods. The frozen soil subgrade in the snow area is stable, and the wind and volcano pass through it. Ancient and modern Chinese and foreign romantic, only my plateau Tianluxiong! "

  Important achievements concerning the national economy and people’s livelihood have come out one after another.

  Lean coal is a kind of bituminous coal that can’t coke, and it is mainly used for power and civil fuel. High-quality coal for blast furnace injection is raw coal for ironmaking, and the economic value difference between them is at least more than twice. After finishing the research on the oxygen production project on the Qinghai-Tibet Plateau, Liu Yingshu did not have enough rest, and immediately devoted himself to the technical development of developing the former into the latter.

  from2002Since, he has spent.fiveIn 2000, he led the research group and factory technicians to tackle key problems, and took the lead in successfully developing and popularizing complete sets of blast furnace injection technology for lean coal and lean coal, which greatly improved the optimization and appreciation of products in the coal industry and made the national resources scientifically and reasonably utilized. The research results of the project series have successively won the second prize of the National Science and Technology Progress Award.oneSpecial Prize of Scientific and Technological Progress in Shanxi Province and Coal IndustryoneItem, first prizethreeItem. Today, the research results have been widely used in industry, and the direct economic benefits exceed.200100 million yuan.

  Just as the above topics are in full swing,2003When SARS hit in 2000, schools were closed and factories in other places could not go. Liu Yingshu, who rarely has a rest, didn’t relax at home. After learning that the patient24When oxygen inhalation was indispensable when he was a child, medical staff had to wear thick protective clothing and carry oxygen bottles to deliver oxygen to patients. He suddenly thought of whether a small and portable oxygen generator could be designed to reduce the burden on both doctors and patients.

  He volunteered and applied for the emergency support project of the National Natural Science Foundation of China. Because of the relevant research foundation, the development was not very difficult, and soon he invented a small portable oxygen generator for patients to use alone, which solved the problem of safe oxygen use for SARS patients. Subsequently, he promoted the technology with the support of the school.

  At present, the Institute of Gas Separation Engineering of University of Science and Technology Beijing has become the only center in China to research and develop the miniaturization technology of pressure swing adsorption oxygen production, forming the technical support position of the national medical health oxygen production machine industry, and laying a theoretical and technical foundation for the development and growth of the micro pressure swing adsorption oxygen production machine industry in China.

  Liu Yingshu’s thinking is particularly active, and he is good at associating with real life. After completing the design of a small oxygen generator for SARS patients, he soon thought of the source of oxygen for people to breathe in a fire environment, wondering whether he could invent an instrument to directly convert carbon dioxide exhaled by the human body into oxygen.

  He led the research group, aiming at the characteristics of the fire scene and the breathing needs of different people, spent a lot of effort to overcome the problems of self-circulation cooling, developed a series of products without circulating breathing equipment, and innovatively turned the "question mark" into an "exclamation point". Users can breathe through self-circulation, and can persist when they are still.oneHours, can also support when running.30Minutes, not only ensure the safety of life, but also the cost is not high, only a few hundred yuan for a piece of equipment.

  At present, this series of products have become breathing equipment recognized in the field of fire protection and hazardous chemicals.2015After the explosion in Tanggu, Tianjin in, this kind of emergency respirator provided breathing and life-saving support for fire rescue workers.

  In addition, in order to solve the problem of natural gas shortage in China, he carried out enrichment and purification research on coal mine gas and biogas, and applied it in Jizhong and Jixi. In terms of biological natural gas purification, he undertook the "Twelfth Five-Year Plan" country.863The key project of the plan "Research on Key Technologies of Biogas Purification" and the key project of Beijing Science and Technology Commission "Demonstration Project of Integrated Application of Biogas Technology and Equipment in Beijing-Zhangjia Area" can purify biogas from bio-fermentation to methane concentration.95%The above bio-natural gas will be used in Beijing-Zhangjiang area to promote the development and utilization of biomass energy in China and reduce greenhouse gas emissions.

  Work every week60Wake up in the middle of the night thinking technology

  Won the prize of scientific and technological progress achievementtwentyMore than one, including the National Science and Technology Progress Award.oneItem, the second prize of national scientific and technological progress.oneItem; Preside over and undertake major national scientific and technological research projects, national natural science foundation projects, and key projects of science, technology and industry committee for national defense.60Remaining items; Published papers300More than one article, published monograph.fourDepartment, enjoy special government allowances; Obtain a national authorized patent55Item, international leading, international advanced achievement appraisal.sixItem …

  As one of the top experts in gas separation in China, Liu Yingshu has achieved fruitful results in academic research. He has no time to look back on the past. He always finishes a project and immediately throws himself into the research of new topics. His brain has been in high operation. He can maintain a high-yield trend for many years. He said that it is because he likes to ponder new problems, do scientific research, and pay attention to the development of the times and society. He always feels that there are too many problems to be solved in real life and hopes to do something practical, so he always has an interest in scientific research and keeps moving forward.

  He is nearly sixty years old, but he still keeps forging ahead, working more than one week.60An hour, now I have it on handthreeA major issue, all related to the national economy and people’s livelihood. Among them, he undertook the "Thirteenth Five-Year Plan" key research and development project "Multi-pollutant Collection, Adsorption, Removal and Recycling Technology and Demonstration of Flue Gas", aiming at the problem of pollutants in flue gas, with the goal of transforming pollutants such as sulfur dioxide and nitrogen oxides in flue gas into high value-added gas products.

  Originally, the project was planned to be established and processed every hour.fiveAfter seeing the interim results of the project, the factory increased its confidence and decided to expand the production line to every hour.100Ten thousand cubic meters. Being able to gain the trust of the manufacturer, he feels that the opportunity is rare and the responsibility is great. Recently, he often wakes up at two or three in the middle of the night and ponders over the technical scheme.

  "If it is successfully developed, it will open up a new way of air pollution control that will bring both environmental protection benefits and economic benefits, and enterprises will change from passive environmental protection with pure investment to active environmental protection with positive returns." The pressure is temporary, and he is full of expectations for the research and development prospects. At this moment, he completely forgot his injuries, and he was as radiant as a fighter who went to the battlefield.

  Like a "walking textbook", teaching for many years ranks first.5%

  Liu Yingshu is not only an accomplished scientific researcher, but also a people’s teacher who cultivates talents conscientiously. He has successively won the honorary titles of Beijing’s teacher’s moral model and Beijing’s excellent teacher.

  No matter how busy the scientific research work is, he always puts teaching and educating people in an important position, and he is used to attending classes in advance.15Minutes to the classroom, the average annual workload for the school professor rated workloadfiveMore than times. Almost everyone in his team received the teacher’s advice on revising the paper at two or three o’clock in the morning. From topic selection to punctuation, a paper usually needs to be revised three or five times before you can rest assured.

  Vision Wei, a student, said that when catching up with the smog, the teacher would remind students to wear masks; After students graduate, teachers will still keep in close contact. From career development to introduction, he takes good care of everyone; As long as he asks questions, he will answer them at any time. "Although the teacher has already made a name for himself, he is humble and does not put on airs." Sun Ning, a student, said that he would listen to students’ feedback on the courseware patiently, revise it from time to time, innovate constantly, and would rather do research with you and produce results.

  "Courtesy", "faithfulness", "diligence" and "cleanliness" are the basic requirements that Liu Yingshu put forward for graduate students, including being polite, such as letting the teacher go first when waiting for the elevator and not eating in class; Appreciate the cooperation opportunities given by others and thank each other for their trust; No matter the size of the task received, reply in time, be honest in academic work, and do not make any fraud, and be trustworthy in life; Think hard and work hard; Love to be clean, keep the laboratory clean …   

  The rules seem to be small, but they are mostly trivial, but they contain his endless expectations for young students, not only guiding their studies, but also teaching them the truth of doing things, because he believes that details determine success or failure. "underground capsule regulation people can support in it.sevenGod, if the data is false, he shouldn’t go into the cabin for a period of timesevenGod’s real-life experiment. ""you can go to graduate school, which means that your intelligence has reached the standard, and then whoever is diligent can make achievements. Than hard work, you can with me.PK. ""If you don’t sweep a house, why sweep the world? " "If you want to do a good job in scientific research, you must learn to give up a lot of things, and the mentality of people who do scientific research must be flat and low."

  His class is very popular with students, ranking first in teaching evaluation for many years.5%. In order to create good experimental conditions for the scientific research team, he raised funds by himself and built a world-class gas separation laboratory with a value of over 10 million. Under his leadership, the members of the scientific research team grew rapidly, won many national scholarships, were rated as the top ten academic stars of University of Science and Technology Beijing, and were selected into the postdoctoral innovation program of China. After graduation, they grew into top technical soldiers in all walks of life.

  The students lamented that Liu Jiaoshou was a teacher and a friend; An elder, more like a relative.2014In, Dr. Zhang Chuanzhao graduated and taught in another university, which changed the direction of professional research. When he first joined the company, he didn’t adapt to many places, and he was so nervous that he lost sleep and even lost his hair every day. When he went back to his alma mater to chat with his teacher, Liu Yingshu comforted him: "Don’t worry, work hard, man proposes, God disposes." Sometimes hard work doesn’t necessarily pay off, but it doesn’t pay off if you don’t work hard. " After that, I took out my mobile phone and showed him my recent flight records. I went to four cities on business in a week. "You see that the teacher works so hard, and the things at hand may not have good results, but the teacher is still insisting, so you have to work hard." The teacher almost said Zhang Chuanzhao’s tears in a word, which seemed to inject energy in an instant.

  Energy institute2015After finishing the freshman seminar, Wang Yi, a Grade-1 student, wrote a letter to him: "Teacher Liu, I want to say thank you. Thanks to your teaching and companionship in the past six months. For freshmen, a master like you is both looking up and deeply impressed. You care for us, paying attention to knowledge and being a man, and preparing small gifts for us on Christmas Eve. By your side, like a spring breeze! " Under his guidance, Wang Yi won a national scholarship, achieved good results in competitions such as the Energy Conservation and Emission Reduction Competition, and successfully applied for graduate studies.   

  Liu Yingshu also pays attention to supporting young teachers. He helps young colleagues who enter the research group to set career development goals and guide them with their own experiences; He often discusses with them on scientific research direction and academic issues; He helped them to establish contact with famous overseas scholars, introduced enterprises to them, signed horizontal projects, revised project applications and solved technical problems. In recent years, the young teachers of the research group have won many high-level scientific research projects, such as the National Natural Science Foundation Youth Project, the Beijing Natural Science Foundation Project and the Postdoctoral Innovative Talents Program Project.

  He said: "At our age, one of the main tasks is to build platforms and ladders for young people and pass on the scientific research tasks in our hands like a baton."

  "Three-inch chalk, three-foot platform is the national luck; A heart of Dan, holding a candle to cast the soul of the people all his life. " This is Liu Yingshu, who, full of childlike innocence, practiced his ambition to serve the country, conquered one "wind volcano" after another on the road of scientific research, and became a "walking textbook" in students’ minds, explaining the meaning of "teachers’ morality" in every word and deed.

Influenza vaccination began in 2024, and these vaccination knowledge must be mastered first!


  The flu vaccine has started! Children’s influenza can be vaccinated from June to 3 years old, and adults’ influenza can be vaccinated over 3 years old.

  Influenza is an acute respiratory infectious disease caused by influenza virus, which can cause large-scale epidemic. It is mainly spread through droplets in the air, contact between people or contact with contaminated items. It has the characteristics of high incidence, rapid spread, ineffective antibiotic treatment and susceptibility of all people. But influenza can be prevented, and influenza vaccination is the most effective prevention method at present.

  1. What’s the difference between the flu and the common cold?

  The difference between flu and common cold.

  2. What are the benefits of influenza vaccination for different groups of people?

  Early vaccination, early prevention, and no hesitation.

  3. When will the flu vaccine be vaccinated?

  Winter and spring are the flu epidemic seasons every year, and the best time to get the flu vaccine is before the start of the flu season every year. Therefore, generally, autumn and winter are the best golden period for flu vaccination to ensure immune protection before the flu season (it usually takes two to four weeks to produce effective immunity after getting the flu vaccine). Early vaccination, early prevention.

  4. I was vaccinated against influenza last year. Is it necessary to get vaccinated once a year?

  You can’t be "immune for life" after being vaccinated with influenza vaccine. In fact, the influenza virus strains that are popular every year are different from those in previous years, and the immunity acquired by people after influenza vaccination will also decay over time. The antibody level produced in the body does not always remain the same after vaccination. The antibody level in the body begins to decline after 6-8 months, and there is no protective effect after one year. Therefore, it is necessary to vaccinate the flu vaccine once a year.

  5. What are the possible reactions to vaccination?

  Low-grade fever may occur after influenza vaccination, and there will be slight redness and swelling at the injection site, but these are temporary phenomena and the incidence rate is very low, and usually no special treatment is needed. However, a few people will have repeated high fever, dyspnea, hoarseness, wheezing, urticaria, pallor, weakness, tachycardia and dizziness, so they should seek medical attention immediately.

  6. What are the suitable people for influenza vaccine?

  Infants aged 6-35 months;

  Older people over 60 years old;

  Chronic patients and the infirm;

  Staff of medical and health institutions, especially front-line staff;

  Pupils and kindergarten children;

  Staff of nursing homes, nursing institutions for the elderly and nurseries;

  Employees in the service industry, especially taxi drivers, civil aviation, railway and bus drivers, commercial and tourism service employees, etc.;

  People who travel frequently and go abroad; People in important jobs, etc.

  People and voluntary vaccinators who want to reduce the possibility of influenza for any reason.

  7. Precautions for influenza vaccination

  Precautions:

  (1) The interval between influenza vaccine and COVID-19 vaccine or other vaccines should be 2 weeks or 4 weeks (according to the specific situation of vaccination).

  (2) Those who are allergic to the ingredients contained in the vaccine should not be vaccinated.

  (3) Those who have been vaccinated with this vaccine in the past and have had serious adverse reactions should not be vaccinated.

  (4) People suffering from acute diseases, serious chronic diseases, acute attack of chronic diseases, colds and fever should not be vaccinated.

  (5) Patients with uncontrolled epilepsy and other progressive nervous system diseases should not be vaccinated if they have a history of Guillain-Barre syndrome.

  8、Time and place of vaccination in Yunnan Maternal and Child Health Hospital

  Vaccination time:

  Monday to Friday: 08: 00 a.m.-11: 30 a.m. (Adult routine vaccine can be inoculated at the same time in the morning).

  14: 00-16: 30 pm (no vaccination on the afternoon of the last day of the month)

  Saturday and Sunday at 8: 00 & mdash; half past three p.m.

  Vaccination time of other parts:

  BCG: It can be vaccinated only on Monday morning.

  Encephalomyelitis group A: It can be inoculated only on Tuesday and Thursday morning.

  White beer: vaccination is only available on Saturday morning.

  Inoculation location: No.86 Gulou Road, Panlong District, Kunming (Early Childhood Development Center of Yunnan Maternal and Child Health Hospital)

  Photo courtesy of Yunnan Maternal and Child Health Hospital

Implementation Opinions of the General Office of Guangdong Provincial People’s Government on Further Strengthening the Management of Vaccine Circulation and Vaccination

General Office of Guangdong Provincial People’s Government on Further Strengthening

Opinions on the implementation of vaccine circulation and vaccination management

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People’s governments at the local level and listed, people’s governments of counties (cities, districts), departments and institutions directly under the provincial government:

  In order to implement the Opinions of the General Office of the State Council on Further Strengthening the Management of Vaccine Circulation and Vaccination (Guo Ban Fa [2017] No.5), combined with the actual situation in our province, with the consent of the provincial people’s government, we hereby put forward the following implementation opinions.
  First, improve the vaccine management mechanism

  (a) improve the province’s immunization program vaccine adjustment mechanism. The Provincial Health and Family Planning Commission should improve the system of expert advisory committee on immunization planning, timely adjust the immunization planning policy of our province according to the national decision-making and deployment, and regularly carry out vaccine monitoring for diseases. After the demonstration by the expert advisory committee, the Provincial Department of Finance will propose suggestions on increasing the types of vaccines provided to citizens free of charge, which will be announced and implemented after being approved by the provincial people’s government and put on record by the National Health and Family Planning Commission. Encourage all localities to increase the types of vaccines provided free of charge to citizens in light of actual conditions.
  (two) improve the compensation mechanism for abnormal reaction of vaccination. Encourage the establishment of a mechanism to compensate the recipients of abnormal vaccination reactions through commercial insurance, and gradually establish a multi-level insurance compensation system including basic insurance and supplementary insurance to improve the compensation efficiency of abnormal vaccination reactions. Before the establishment of the compensation insurance mechanism for abnormal reaction of vaccination, compensation should be carried out according to the existing regulations.
  (three) to establish a joint meeting system between vaccine circulation and vaccination management departments. The Provincial Health and Family Planning Commission and the Food and Drug Administration, together with relevant departments, establish a joint meeting system between vaccine circulation and vaccination departments, clarify the division of responsibilities of each department, constantly improve the coordination mechanism, strengthen communication and cooperation in vaccine production, circulation, vaccination, vaccination certificate inspection, replanting and publicity, timely inform the progress of work, promote information sharing, coordinate with major emergencies, jointly study and solve outstanding problems, and form joint efforts.
  Two, strengthen the whole process management of vaccine production, circulation and use.

  (1) Promote independent research and development of vaccines and improve their quality. Support the research and development and industrialization of new vaccines in our province, especially multi-valent vaccines, through provincial science and technology plans (special projects, funds, etc.), major science and technology projects and other scientific research projects. Promote vaccine production enterprises to improve the quality management level and standardize production capacity, and continuously improve the quality of vaccine products. Actively promote the construction of vaccine research and development, production and clinical trial bases in our province, and promote the development of vaccine-related industries.
  (two) standardize the centralized procurement of vaccines. Incorporate vaccine procurement into the provincial third-party drug electronic trading platform, and implement centralized online procurement in accordance with the principles of openness, transparency, competition and fair trade. The Provincial Health and Family Planning Commission should further improve the centralized procurement plan for the second kind of vaccines in our province. Entry-exit inspection and quarantine departments should strengthen the management of entry-exit vaccination, and do a good job in the procurement, storage and use of vaccines required for entry-exit personnel in our province.
  (3) Strengthen the cold chain distribution management of vaccines. Provincial Food and Drug Administration should strengthen the inspection of cold chain storage and transportation conditions of storage and distribution enterprises. The Provincial Health and Family Planning Commission should take the lead in organizing the formulation of cold chain equipment standards for disease control and prevention institutions. Local health and family planning departments should regularly evaluate the cold chain facilities and equipment of disease control institutions and inoculation units in their respective jurisdictions to ensure that the cold chain equipment is in place according to standards and operates normally. All localities should take effective measures to ensure timely delivery of vaccines within their jurisdiction, especially in remote areas.
  (four) to strengthen the whole process of vaccine traceability management. The Provincial Food and Drug Administration shall, jointly with the Provincial Health and Family Planning Commission, strengthen the traceability management of the whole process of vaccine production, circulation and use. The Provincial Health and Family Planning Commission should speed up the embedding of the provincial vaccination information management system into the information management system of provincial primary medical and health institutions, and realize the docking with the relevant information systems of food and drug supervision departments and education departments. All vaccination units should implement vaccination information management.
  Third, standardize vaccination management

  (a) to strengthen the overall management of the second kind of vaccination. The provincial centers for disease control and prevention should promptly carry out the evaluation and selection of the second kind of vaccines and put forward the use items. Actively promote the second type of vaccine appointment vaccination service. County-level health and family planning departments should determine the vaccination units within their jurisdiction according to factors such as the service population and service scope, and announce them to the public. In principle, rural areas implement a centralized vaccination model with townships as the unit. Strictly regulate the service behavior of village-level vaccination units. The Provincial Development and Reform Commission should speed up the formulation of the charging standards for the second kind of vaccination service fees and vaccination consumables fees charged by vaccination units in our province. The problem of storage and transportation fees for the second kind of vaccines should be solved in a market-oriented way in the bidding and procurement of the second kind of vaccines.
  (two) to strengthen the standardization of vaccination units. Strengthen the standardization and informatization construction of public hospitals, community and township vaccination units. Further standardize the establishment of vaccination units, personnel qualifications, vaccination facilities, cold chain management, monitoring and handling of suspected abnormal reactions to vaccination, and vaccination notification, recording, reporting and publicity. The inoculation entity shall publicize the immunization procedures, vaccine varieties, inoculation methods, vaccine functions, contraindications, adverse reactions and precautions, the price of the second kind of vaccine, the charging standard of vaccination service, consultation and complaint telephone number and other matters in a prominent position in the inoculation site. Local health and family planning departments should implement dynamic management of vaccination units, strengthen technical training of vaccination professionals, complete grading evaluation of all vaccination clinics and full coverage of supervision of other vaccination units before the end of 2017, and organize spot checks on the standardized construction of vaccination units every year. Medical personnel who undertake vaccination duties and tasks in medical and health institutions should pass the vaccination professional training organized by the county-level health and family planning administrative department and pass the examination.
  (three) to strengthen the assessment of vaccination work. Take the results of vaccination assessment as an important basis for allocating subsidy funds for basic public health services. According to the provisions of the implementation of disease prevention and control personnel subsidies policy, scientific verification of disease prevention and control institutions total performance pay, the establishment of vaccination outpatient performance pay and vaccination outpatient grade, vaccination service linked to vaccination incentive mechanism.
  Fourth, the implementation of safeguards

  (a) to ensure the staffing of disease prevention and control institutions. All localities should clarify the nature of the public welfare institutions of the Center for Disease Control and Prevention, and implement the staffing of disease control and prevention institutions in all localities within the scope of the total staffing in accordance with the requirements of the staffing standards for disease control and prevention institutions.
  (2) Establish a stable input mechanism for disease prevention and control institutions. Local governments should implement the responsibility of expenditure, fully arrange the development and construction expenditure for the basic construction of disease prevention and control institutions, the purchase of facilities and equipment, especially the cold chain system and information construction, scientifically and reasonably verify the personnel funds and business funds of disease prevention and control institutions, and fully include them in the budget, which will be guaranteed by the finance at the same level.
  (3) Strengthen supervision and inspection. Local governments should implement the responsibility of territorial management, and incorporate the work of disease prevention and control such as vaccination and the implementation of financial policies for disease prevention and control institutions into the government assessment. The Provincial Health and Family Planning Commission and the Food and Drug Administration shall, jointly with relevant departments, strengthen supervision and inspection. When problems are found, they shall be ordered to make immediate rectification, and informed criticism shall be given to areas where work is seriously lagging behind and perfunctory, and the relevant personnel shall be held accountable according to laws and regulations.

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General Office of Guangdong Provincial People’s Government

June 9, 2017

Good news! Starting from tomorrow, such school-age girls will be vaccinated free of charge ~

Cervical cancer is one of the most common gynecological malignant tumors in the world. In China, more than 100,000 people get sick and nearly 60,000 people die every year, which seriously affects women’s health and life safety. Considering the epidemic characteristics of HPV and the applicable population range of the vaccine, the World Health Organization (WHO) believes that the earlier the HPV vaccine is vaccinated, the greater the benefit, and recommends girls aged 9-14 as the main target population for HPV vaccination worldwide. In 2024, the Zhejiang provincial government will provide free domestic bivalent HPV vaccine for school-age girls in the province as a practical project for the people.

Vaccination principle: informed, voluntary and free vaccination.

Inoculation target: junior high school girls aged 13-14 in Wucheng district who have no contraindications to HPV vaccination and have not been vaccinated before.

Vaccination time: The vaccination clinic in Wucheng District is expected to carry out the first dose of free bivalent HPV vaccination service from May 25, 2024, and the second dose is expected to be carried out from November to December. Consult the vaccination clinics in detail.

Vaccination procedure: 2 doses were inoculated in the whole process (the interval between 2 doses was not less than 5 months).

Warm reminder: the number of places is limited, while stocks last. Girls aged 13-14 who have completed the preliminary survey and agreed to be vaccinated are invited to go to the vaccination clinic in the school territory accompanied by their parents.

Question 1: Why do you want to get HPV vaccine?

A: HPV is the abbreviation of human papillomavirus. At present, there are more than 200 types found. HPV can be divided into high-risk type and low-risk type. Studies have shown that about 99.8% of cervical cancer is caused by persistent infection of high-risk HPV. At present, there are 12 kinds of high-risk HPV, including HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58 and 59. In addition to causing cervical cancer, high-risk HPV is also related to the occurrence of cancer in anus, head and neck, genitals and other parts.

The types that bivalent HPV vaccine can prevent are HPV16 and HPV 18. Vaccination with HPV vaccine can significantly reduce the incidence of persistent HPV infection, precancerous lesions and cervical cancer, which is the most economical and effective means to prevent cervical cancer. Relevant clinical trials and post-marketing effect evaluation data show that the HPV vaccines currently approved for marketing have good safety and effectiveness.

Question 2: Why is the age range of free vaccination defined as 13-14-year-old girls?

A: The World Health Organization (WHO) recommends girls aged 9-14 as the main target population for HPV vaccination. Vaccination of HPV vaccine for young girls can induce a higher level of immune response and have a better preventive effect. Studies have shown that there are two peaks of HPV infection among Chinese women according to their age, one is 17-24 years old and the other is 40-44 years old. Taking girls aged 13-14 as the key target group for HPV vaccination, giving priority to ensuring and greatly improving the HPV vaccination rate of adolescent women can make better use of effective social resources and achieve the best effect of the primary prevention strategy for cervical cancer.

Question 3: Can I get HPV vaccine during the physiological period?

A: If there are no special circumstances such as fever, anemia, infection or severe menstrual discomfort, HPV vaccine can be vaccinated during the physiological period.

Question 4: What should I pay attention to after vaccination?

A: After inoculation, you should stay in the inoculation unit for 30 minutes, and you can leave only after there is no abnormality. After inoculation, you should rest more and drink more water to avoid strenuous exercise. Due to individual differences, a few people may have transient adverse reactions such as local pain, redness, induration, fever and fatigue after vaccination, which generally do not need special treatment and can be relieved by themselves. When necessary, you can go to a regular hospital in time.

Parents and friends, the healthy growth of children is related to the future of the motherland and the nation, and it is also the greatest wish and expectation of every family. Protecting children’s health is the common responsibility of schools, families and society. Let’s join hands to do a good job in HPV vaccination, escort the healthy growth of children and give them a healthy and bright future.

Wucheng District launches free bivalent HPV vaccination.

List of vaccination clinics

Original title: "Good news! Starting from tomorrow, this kind of school-age girls will be vaccinated free of charge.

Read the original text

First check-in! 40-year-old house is "brand-new", striding forward in a new era and a new journey.

It is the common wish of many villagers that the old rural houses that have lived for decades can be "rejuvenated". Year of the snake Spring Festival is approaching. In Jianghai Village, nanqiao town, a group of villagers "wish come true" and happily moved into a brand-new old house.

Originally, as early as 2023, nanqiao town promoted group-based renovation work in rural areas with demand and conditions within the town, and effectively improved the living quality of rural villagers. The 15 households on the west side of the Five-Star Eight Group in Jianghai Village were the first group repair projects in the town, which were first completed in June 2024. Now, 15 villagers have been renovated and moved in one after another, expecting to move into a brand-new home before the Spring Festival, and the whole family will have a reunion dinner and enjoy a comfortable and comfortable modern pastoral life.

On the afternoon of the New Year, the warm sunshine fell on the homestead of five-star eight groups in Jianghai Village. White exterior walls, black tiles, supplemented by blue bricks and log elements, a row of newly renovated residential foundations with unified design is quite eye-catching in the village, and it also forms a strong contrast with a row of old residential foundations on the east side of the road. If you look closer, you can also find that there is a large parking area in the north of each house base, and the relatively independent courtyard of each family is divided by low walls and hedges in the south. In front of the courtyard, a flat waterfront trail and a hydrophilic platform were newly added. At this time, the old people who have already stayed in the "new house" are basking in the sun, waiting for the night to fall, and their descendants will return to the homestead to have a reunion dinner.

When it comes to the new look of the homestead, the villagers are all smiles. Because of this renovation, their living environment has been significantly improved, and even the younger generation is willing to go back to the old homestead for dinner every day. After 1995, Hong Jiaxuan simply regarded the old homestead as her new wedding house. She told reporters, "In the past, there was no air conditioning and natural gas in the countryside. It was cold in winter and hot in summer, and then cooking could only burn the stove. Now I have it all. My parents and I live directly in the countryside. The family lives quite comfortably and feels happier than living in a commercial house. "

As early as last September, He Shuizhang showed his new house to reporters. In the spacious living room of the new house, the furniture and TV cabinets were fully arranged, and the small yard in the south was also well-made by Lao He, which was quite warm. "It’s different from the previous days, and it feels better than the commercial housing in the town!" Csi said with a smile.

Living next door to He Shuizhang is his younger brother He Shuilong, who also moved in early in the second half of last year. According to Lao He’s recollection, most of the houses in the Red Star Group 8 were built in the 1970s, among which the two brothers are the oldest, with 45 years of mud walls and dilapidated houses. "Our houses are more than 40 years old. The house I built at the age of 21 is now 68 years old. Now it is much cleaner than before and we live more comfortably."

Hong Yuehua, who hasn’t moved into a new house, will come here for a walk every day to talk with his neighbors about his family, and his feelings of looking forward to staying are beyond words. "We used to be mud walls and mud boards. When we touched our hands, the mud would fall off. Everyone wanted to rebuild it. It happened that there was this project in the village, so we were all very satisfied!" Hong Yuehua said with emotion: "Now the sanitation has improved, the living conditions have improved, and the younger generation is willing to go back to the countryside. My grandchildren want to live in the countryside, saying that the air in the countryside is good, the sun is abundant, and the houses are well built. They all want to have a reunion year in the new house."

According to Gu Chunfeng, secretary of the Party branch of Jianghai Village, Wuxing Eight Groups, located on the south side of Nanting Highway and the east side of Shagang, are old houses built in the village for a long time. Over the years, many villagers have reported problems such as dilapidated houses, settlement and cracking, and they have a high voice for house repair. However, considering that Wuxing Eight Groups are the residential bases built in a row, there is no corresponding repair policy and opportunity. Just the year before last, Fengxian District issued a policy of repairing related groups, and the opportunity came. After several design demonstrations and summarizing villagers’ opinions, nanqiao town started the group repair work of 15 villagers.

"Our main purpose is to completely solve the problem of improving the living quality of houses that the people most expect through this group repair, and at the same time, it will also help the style of rural houses. Moreover, the biggest environmental sanitation difficulty in the village is the dilapidated foundation of houses. Renovation is also a cure." Gu Chunfeng said that after the renovation, nine families have moved in, three families are being renovated, and the rest plan to move in this year. The living quality of ordinary people has improved, and the style of rural houses has become better. It has also played a leading and exemplary role in the village. Next, the renovation project of more than a dozen households on the east side of the road is already in progress.

In fact, at present, there are two mature groups in the town of nanqiao town, namely, five-star eight groups in Jianghai Village and three groups in Guangming Village, and a total of 49 villagers are promoting the renovation work. According to Tao Longwang, deputy director of nanqiao town Urban Construction Center, the houses in nanqiao town are basically houses built in the 1970s and 1980s, and the houses have reached a certain age. However, due to the restrictions of previous planning and control and the current housing policy, it is more difficult for villagers to rebuild the houses sporadically. "If we concentrate on renovation, on the one hand, we can fight for the rights and interests of the people, and the price can be relatively cheaper. On the other hand, because it is a group renovation, we can also organize the houses as a whole. He said that next, when all the conditions are ripe, nanqiao town will continue to promote the group renovation work, effectively improve the living quality of rural villagers, enhance the level of rural revitalization, and create a new style of water town in the south of the Yangtze River that is "homesick and visible to development".

Children’s colds and flu are treated differently.

In daily life, parents tend to confuse children’s common cold with influenza. In fact, there are great differences between them in pathogen, infectivity, symptoms and medication. Parents should carefully distinguish whether their children are suffering from the common cold or the flu, and take medicine according to the symptoms.

Common cold

The common cold is mainly caused by viruses, and children will have symptoms such as stuffy nose, runny nose, sneezing, coughing and fever. The common cold is often a mild self-limiting disease, which can be gradually relieved without taking medicine.

In infants and young children, the symptoms of the common cold are usually more serious on the second to third day, and gradually relieved on the tenth to fourteenth day. A few children may cough for 3-4 weeks. Older children and adolescents generally have cold symptoms gradually subsided in 5-7 days, and children with basic lung diseases may last longer.

There is no specific medicine for the common cold. Taking medicine is mainly to relieve symptoms and make children feel less uncomfortable. The commonly used therapeutic drugs for relieving cold symptoms are shown in Table 1.

It should be noted that children should not be given cold medicine containing codeine. Although codeine has a strong antitussive effect, long-term use may cause physiological dependence and addiction. National Medical Products Administration’s announcement on revising the instructions for cold medicines containing codeine clearly points out that it is forbidden for children under 18 to use cold medicines containing codeine. Then, how to relieve the mild cold symptoms of children?

When the body temperature caused by fever is above 38.2℃, children over 2 months old can use acetaminophen to reduce fever, and children over 6 months old can use acetaminophen or ibuprofen to reduce fever. For the symptoms of nasal congestion and runny nose, it is suggested to relieve the symptoms by dripping salt water into the nose, spraying nose, nasal irrigation, etc. Children under 6 years old are generally not recommended to use drugs (such as compound cold medicine) to relieve the nasal symptoms, because these symptoms will generally gradually relieve themselves, and adverse reactions may occur when using drugs. If you have a cold accompanied by cough, you can replenish water appropriately, which will help to dilute sputum and relieve respiratory mucosa. Children over 1 year old with common cold can take honey or honey water to relieve their cough. Honey has a mild cough relieving effect on night cough. It should be noted that children under 1 year old should not take honey, because it will increase the risk of botulinum poisoning.

Parents need to pay special attention to that children need to seek medical attention as soon as possible in the following situations: infants less than 3 months old have symptoms such as fever and cough; After taking antipyretics, the fever still persists or persists for 3 days; Persistent nasal symptoms, such as stuffy nose, runny nose, sneezing, etc., have lasted for more than the course or degree of the common cold; Abnormal conditions such as dyspnea, confusion and ear pain occur.

So, how to prevent children from catching a cold? The most important thing to prevent colds is to wash your hands frequently. It is best to use running water when washing your hands, and tell your child to rub it with hand sanitizer or soap for at least 20 seconds. In addition, we should pay attention to indoor ventilation, take children to crowded public places less, and try to wear masks when going out. If parents catch a cold, they should be isolated and reduce contact with their children. Pay attention to the combination of meat and vegetables in diet, ensure nutrition, take children to exercise more and ensure enough sleep time to enhance their physique and improve their immunity.

Common medication problems of common cold

Q: Can antipyretics and compound cold medicines be taken together?

A: no. Compound cold medicine usually contains antipyretic ingredients, which can easily lead to repeated medication and toxic and side effects when taken together with antipyretics. It is best for parents to choose a single ingredient medicine for their children. If you use a compound cold medicine, you must read the instructions carefully before using it, especially the ingredients, to know whether there are repeated drugs.

Q: Do Chinese patent medicines have any side effects?

A: Chinese patent medicines also have side effects. Although the adverse reactions written in the instructions of many Chinese patent medicines are unclear, this does not mean that they have no adverse reactions, and Chinese patent medicines are not necessarily safer than western medicines.

Q: Do children need antibiotics for their common cold?

A: no need. Common cold is caused by virus infection, and antibacterial drugs are mainly aimed at bacterial infection. The use of antibacterial drugs is not only ineffective for common cold, but also may cause bacterial resistance. Therefore, the common cold does not need antibiotics, unless the doctor clearly diagnosed bacterial infection or secondary bacterial infection.

Q: Can children take oseltamivir for a common cold?

A: no. The common cold is mainly caused by rhinovirus and coronavirus, while oseltamivir is aimed at influenza viruses, including influenza A and influenza B viruses, so oseltamivir is not symptomatic for treating common cold.

flu

Influenza is an acute respiratory infectious disease caused by influenza virus, which can be divided into four types: A, B, C and D. The most common type of influenza is seasonal influenza, which occurs in autumn and winter and is mainly caused by influenza A and B viruses.

Children’s influenza often starts suddenly, the main symptom is fever, and the highest body temperature can reach 39~40℃, often accompanied by chills and chills. Children will also have headaches, muscle aches, fatigue, loss of appetite and other manifestations. Cough, sore throat, runny nose and stuffy nose may also occur, and a small number may have digestive tract symptoms, such as nausea, vomiting and diarrhea. The symptoms of influenza in infants and young children are often not as typical as those in children, and may only be fever and cough. Newborn influenza is relatively rare, but complications often occur, such as pneumonia and dyspnea.

Mild influenza is often similar to the common cold, but its fever and systemic symptoms are more obvious. Severe children will have viral pneumonia, secondary bacterial pneumonia, acute respiratory distress syndrome, shock, disseminated intravascular coagulation, cardiovascular and nervous system and other extrapulmonary manifestations and various complications.

Influenza patients and recessive infected people are the main sources of seasonal influenza infection, mainly through droplets of respiratory secretions, but also through direct or indirect contact with oral cavity, nasal cavity, eyes and other mucosa. Influenza virus is easy to produce new mutant strains, so it can spread widely among people, causing repeated infections and diseases. Therefore, we must pay attention to it and do our best to prevent it.

Different from the common cold, influenza has a "nemesis", that is, neuraminidase inhibitors. At present, the drugs listed in China include oseltamivir, zanamivir and palamivir. Among them, oseltamivir is the most widely used anti-influenza drug for adults and children at present, and its best administration time is within 48 hours after the onset of flu symptoms, and it is also effective after 96 hours after the onset of flu symptoms. Specific therapeutic and preventive doses can be found in Table 2. Although vaccination is the best way to prevent influenza virus infection, oseltamivir can be recommended for people who cannot be prevented by vaccine and the following key children in the outbreak of influenza.

The recommended drug prevention population includes: high-risk children who cannot be vaccinated with influenza vaccine, or children with immune abnormalities who do not respond to the vaccine; High-risk children within 2 weeks of vaccination; Family members or caregivers who are in close contact with non-immunized high-risk children or infants younger than 24 months; In order to control the outbreak of influenza, it is used in children who have not been immunized or in children’s gathering places (such as kindergartens); Prevention after exposure of family members; Prevention of patients with high risk of influenza complications and close contact with influenza.

Vaccination against influenza can significantly reduce the probability of influenza in children and the risk of serious complications. Therefore, parents are advised to take their children to get the flu vaccine in time every year. Generally, it is planted indirectly from September to December every year, and it is best to complete immunization before the end of October. Children aged 9 and over are advised to take one dose in one flu season. For children aged 6 months to 8 years, it is recommended to vaccinate two doses for the first time, with an interval of one month. But not all children are suitable for vaccination, and infants less than 6 months old or children who are allergic to any component of the vaccine are not suitable for vaccination. In addition, if the child suffers from mild to moderate acute diseases, it is recommended to vaccinate after the symptoms subside.

When the child has the following situations, he should pay attention to seek medical attention in time: dyspnea or shortness of breath, which can not be relieved after cleaning the nasal cavity; Crying low, crying less, not having good eye contact with parents, poor spirit and listlessness; Drink less water, or there are signs of dehydration, such as no tears when crying, decreased urine output (dry diapers), dry mucous membranes such as lips, tongue and eyes, and skin like dough, which cannot be quickly recovered after gently pinching the skin; Severe or persistent vomiting; Poor appetite, significantly reduced eating; Persistent fever, with or without convulsions; Fever with rash.

Common drug use problems of influenza

Q: Can infants under 1 year old take oseltamivir granules?

A: Although the minimum age of the population suitable for oseltamivir granules is 1 year old, the US Food and Drug Administration has approved that oseltamivir can be used for infants over 2 weeks old. The British Ministry of Public Health guidelines also suggest that infants under 1 year old can use it. China’s "Expert Consensus on Diagnosis and Treatment of Children’s Influenza (2015 Edition)" puts forward that oseltamivir can be used for influenza treatment in children of all ages and influenza prevention in children over 3 months old. According to the above evidence, infants younger than one year old can take oseltamivir granules, but it is an over-the-counter drug in China at present.

Q: The child’s condition has improved after taking the medicine for 3 days. Can he stop taking the medicine?

A: Due to individual differences, some children may feel better after two or three days of medication, but they are not sure whether their illness will recur. It is suggested that they should take medication according to the course of treatment for five days.

Q: Can oseltamivir take the place of influenza vaccine to prevent influenza?

A: Drug prevention is generally only used as an emergency temporary preventive measure and cannot replace vaccine prevention. Vaccination against influenza is the first choice to prevent influenza.

Q: Can I treat the flu with antibacterial drugs?

A: no. Antibacterials only kill or inhibit bacteria, but have no effect on influenza virus.

Tanglang Mountain: Walking through the evolutionary tree of biodiversity

editorial comment/note

With the formal completion of the demonstration section of Chaguang-Tanglangshan hiking trail in Nanshan District, it marks the completion of the first mountain and sea corridor in Shenzhen-Tanglangshan-Dashahe-Shenzhen Bay Mountain and Sea Corridor.

This is the first project that landed after the Master Plan and Three-year Action Plan of Shenzhen Park City Construction (2022-2024) was reviewed and approved by the Municipal Urban Planning Commission. With the completion of this 13-kilometer-long line, a beautiful picture of Shenzhen, a park with mountains and seas, has been formally integrated into the daily life of Shenzhen people, and citizens can enjoy the fun of trails where mountains, rivers, seas and cities are intertwined in the downtown area of Shenzhen.

For ordinary citizens, what are the highlights of this mountain and sea corridor and what are the potential "online celebrity punch points"? Recently, the late-night report group summarized a walking strategy through field interviews, which will be serialized in three days from today.

This interview was helped by many professionals in the field of wildlife protection and nature education in Shenzhen, and I would like to thank you.

Tanglang Mountain: Walking through the evolutionary tree of biodiversity

This is not only a link between natural country parks, ecological water corridors and coastal leisure belts, but also an important part of the 260-kilometer hiking trail running through Shenzhen from east to west. It is a construction model of Shenzhen’s "one ridge, one belt and twenty corridors" space planning.

This is the Tanglangshan-Dashahe-Shenzhen Bay Shanhai Corridor.

Recently, the late-night interview group joined Liu Lei and Ye Jianhua, experts in wildlife protection and nature education, at Longzhumen in Tanglang Mountain, and started this journey of exploring mountains and seas.

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▲ Aerial view of Tanglang Mountain. Shenzhen Evening News reporter Ning Jiewen photo

Longzhumen-Chaguang Entrance: Man-made landscape gradually transits to natural landscape.

Not far from the back of the Dragon Ball Gate, a crisp and loud "morning call" came from the reporter’s ear. The reporter looked up and found that a group of birds with black spots on their faces and light gray were "hard" on the Ilex tree. Teacher Ye told the reporter that this is a black-faced noise, named after it likes singing and has a black spot on its cheek. There are clusters of small red fruits on the holly tree, which is a special favorite food for birds.

Walking to an altitude of 100 meters, the plants on both sides of the mountain road are already very rich. "Look, this is the kidney fern, also known as’ stone yellow skin’. Its root has a kidney-shaped ball, which has the function of nutrient storage, rich water content and thirst quenching effect." Teacher Liu said.

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▲ The interview team interviewed along the way under the guidance of experts. Shenzhen Evening News reporter Chen Yushe

Two experts told reporters that there are two kinds of national first-class protected plants in Shenzhen, among which the hometown of Cycas Xianhu is Tanglang Mountain. It was named Cycas Xianhu because it was discovered and named by plant experts in Xianhu, but the only wild Cycas Xianhu population in Shenzhen is still in Tanglang Mountain. No wonder Tanglang Mountain enjoys a unique "Jianghu status" among plant lovers in Shenzhen.

On the stone platform beside the mountain, the reporter found a strange-looking "snail". Its body crawls slowly on the stone surface, and its shell seems to be cut off in half and covered on the body compared with the general snail shell. "This is a half slug, an interesting species between snails and slugs." Teacher Liu said.

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▲ Half a cockroach. Photo by Li Jingchuan

Not far away, a tall cone appeared in front of the reporter-this is a common native wild tree species in Shenzhen. At an altitude of 200 meters, protophytes such as ragweed leaves, Broussonetia papyrifera, Miscanthus pentaphyllum and Pu Shu gradually appeared. Most of the slopes are ferns with vigorous growth, including Pteris fournieri and Pteris australis. Pteris fournieri has feathery leaves and a sharp tail, which is very ornamental. The leaves of Dryopteris australis have a hairy touch. There is also Liriodendron chinense, which is called "Yajiaomu" by Guangdong people. It is also a native plant on Tanglang Mountain, named after the edge of its leaves is like a webbed duck’s feet. The common name of the beautiful lantana is "five-colored plum". A lantana is composed of many small flowers, with pink petals surrounding a cluster of bright yellow petals in the middle, which is the "restaurant" for butterflies and bees. On both sides of the road, there are three leaves on a branch, which is three bitter; It is Rhus chinensis with wings and a layer of salt frost when the fruit is ripe; There is also a kind of gardening flower, whose branches are born from the ground and covered with long and thin red leaves. According to Teacher Liu, this is a cockscomb bed, which is artificially "domesticated" and can be eaten by sunbirds. In addition, there are various plants such as Camellia oleifera, Wedelia chinensis, litsea cubeba, honey tree, Lygodium japonicum, water lily, Ficus crassifolia, white-backed leaves, Manjiujie, and pseudo-sweet beans. Under the guidance of experts, journalists are interested in learning how to identify them.

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▲ Cocktail-crowned jazz bed. Photo by Li Jingchuan

Suddenly, a forked-tailed sunbird flew over the treetops, attracting everyone’s attention. The fork-tailed sunbird is petite, but cool in appearance. It has an ochre-red neck, pale green wings, and a head and tail that sparkle with sapphire blue like metal. But the most special thing is its two forked, slender and sharp tail feathers; Then, a few bright tones sounded on people’s heads. The reporter looked up and found a bird with the same slender body and a yellowish green color flying between the branches and leaves. "This is a dark green embroidered bird." Teacher Liu said. After careful observation, the reporter found that it really had a circle of white eyes, like exquisite embroidery.

Tea light entrance-Honghualing: Careful observation and harvesting of natural wild interest

After walking 3200 meters along Panshan Highway, you reach the Chaguang entrance. From the Chaguang entrance to the west is a 3180-meter-long demonstration hiking trail in Shenzhen, which is the road from Tanglang Mountain to Zijian Garden.

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▲ The interview group marched on the mountain road. Shenzhen Evening News reporter Chen Yushe

From here, the interview team walked into the real mountain path. As it has just rained, the mountain road is very muddy, so you need to be very careful when walking. But the air is very fresh in the humid forest. Along the way through the litchi forest, there are beautiful purple jade plates, elegant and fragrant lotus flowers, Sapium sativum, catnip, Capparis spinosa, Ficus crassifolia and other plants. Among them, there are many lavender leaves climbing on the branches of the catnip, and the leaves have short and soft fluff, which is very beautiful. The leaves grow to the top of the branches and gradually become smaller, forming a furry "pointed tail" at the top of the branches.

On this road, the interview group met a father and son. They also came to "try early" after learning that Shanhai Corridor was officially opened. My father is a foreigner who only speaks English, while my 9-year-old son is fluent in both Chinese and English, punching cards against the map all the way, full of interest. They always call it Nature, like Wilds, and often hike the peaks in Shenzhen … After talking with them, the reporter learned that his son’s name is D.J., and he climbs mountains every day during holidays, so he can accurately identify many wild plants.

Continue to walk forward, and you will come to a flat mountain, which is the "valley wild interest" section of this hiking trail. There is no place on both sides of the road that can block the sun, but if you carefully observe the vegetation around you, you can find all kinds of insects hidden in the trees and branches. On this road, the interview team found a green Chinese broadsword beetle, which is almost integrated with grass leaves. If you don’t pay special attention, it is difficult to see it. With this experience, the interview team observed it more carefully, and sure enough, it soon discovered a Chinese broadsword gladiator with a light yellow-brown body, which played the role of "dead branches and leaves" in the grass. "Look at the mantis on Tanglang Mountain, we are in glad you came!" Teacher Liu joked. On a branch not far away, a dragonfly came flapping its wings, and its thin, transparent, vibrating golden brown wings and golden yellow back shone in the sun, which made people feel quite shocked. Teacher Liu told the reporter that this is a female Xiao Brown duckling.

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▲ Chinese knife. Photo by Li Jingchuan

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▲ Xiao Brown duckling. Photo by Li Jingchuan

On this section of the road, you can also see various insects such as Papilio microphylla with eye-shaped black spots on its gray wings, Gray duckling with black tail, Hook-winged Eye Nymphalia with hooked wing tips, stinkbug with hemp skin, wart locust, Dornier, etc. It is particularly important to note that there are some small bumps in the grass along the way, so visitors should be more careful when they see them-that is the nest of red imported fire ants. The interview team found that most of the red imported fire ants’ nests were planted with flags to remind them to take precautions, but experts still reminded everyone not to provoke these invasive species and to do personal protection.

Cross this flat land and enter the dense litchi forest in Honghualing. Interestingly, the interview team found an exquisite introduction card of skink (a lizard) on a stone by the roadside. Just as everyone stopped to read, they suddenly found a skink lying quietly beside the sign "presenting himself". "It’s sunbathing." Teacher Ye lowered his voice and told everyone. It turns out that skink, also known as a "hermit under the fallen leaves", likes to move in wet crevices or fallen leaves. Its alertness is very high. Once it senses the movement around it, it will run away quickly and break its tail to survive if necessary. Subsequently, the interview team found four skinks on this road, which shows that this area is their favorite habitat.

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▲ Shilongzi (upper left) who "shows up". Photo by Li Jingchuan

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▲ skink. Photo by Li Jingchuan

Although Honghualing is only a hill, its good vegetation and natural habitat still attract many rare wild animals and plants in urban areas. From time to time, the chirping of birds of prey such as kites and kites came from the sky, which proved that this area was their main "hunting ground". In the dense forest, if you pay attention to the observation, you can see the unique Okumo in South China-the bride of Banluo.

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▲ Spotted bride. Photo by Li Jingchuan

"Tanglang Mountain is like a vivid evolutionary tree. From gymnosperms represented by Cycas Xianhu to primate high-grade mammals represented by macaques, it fully proves the law of biological evolution: from aquatic to terrestrial, from low to high, from simple to complex." After coming down from Honghualing Mountain, Teacher Ye concluded.

Ahead is Dashahe Park, where what wonderful things are waiting for us to discover?

Expert comments

Shanhaijing in the downtown area of the city

Shanhai Corridor, with a total length of about 13 kilometers, starts from Tanglang Mountain, passes through Honghualing, leaves Zijian Garden, goes down the Dasha River and reaches Shenzhen Bay directly.   

On this ecological corridor, the first thing we walked through was a mountain with granite as the main body: Wangtianluo-Tanglangfeng-Honghualing.

In the hilly region from east to west, the typical subtropical monsoon climate environment and the three-dimensional plant community composed of secondary forests, shrubs and artificial forests have bred rich biological resources here.

There are more than 600 species of wild vascular plants here. The guide cards along the way will remind us of the appearance of animals such as macaques, leopard cats, wild boars and pythons. Birds and insects in the forest will slow you down, and at night, it will be an unexpected world.

Walking in Tanglang Mountain is like walking through the evolutionary tree of biodiversity.

The forest of Tanglang Mountain constitutes the lung of the downtown area of Shenzhen, and the abundant water creates the kidney of the downtown area. Five small rivers flowing down the valley: Jishangou, Laohuyan River, Qingquanqu, Tanglang River and Longjing River, are rare natural runoff in the downtown area, and all of them eventually flow into Dasha River.

Longjing River is formed by the confluence of the left and right branches. The source of the river and the lush forest are the paradise of Cycas fairyland, spiny black and golden retriever dogs. The gentle place is the habitat of dragonflies and fireflies; Shallow and deep pools, a large number of aquatic organisms are multiplying; The ups and downs are waterfalls splashed with water mist.

The quiet valley where Tanglang River flows, the quiet habitat breeds the dense ferns along the river bank, and the clear and pollution-free aquatic environment breeds the population of the national second-class protected plant, the water fern.

Qingquanqu is a geomantic treasure-house for local villagers, where trees are flourishing and valleys are winding. Clematis pubescens with white flowers, Impatiens in Hong Kong with yellow flowers, and Youjute with white flowers, which are surrounded by birds, outline comfortable and bright natural colors among the evergreen trees.

Laohuyan River, named after the legend of the South China tiger, is the distribution place of the largest population of Cycas in the wild Xianhu Lake. In the gentle valley, a series of livelihood projects are being built, which will be a harmonious community with clear rivers and green banks, beautiful scenery and loud books.

Jishangou is a confluence of three tributaries, with blooming flowers, evergreen pines and cypresses, and intact mountains and rivers. Seven Dongjiang column martyrs buried under the Changyuan Yu Revolutionary Martyrs Monument witnessed the beautiful new era they pursued and guarded with their lives.

Five tributaries, with the pulse of life, local flavor and fragrance of the four seasons, flow into Dasha River, Shenzhen Bay, Lingdingyang and South China Sea and Pacific Ocean in different ways.

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▲ Ye Jianhua. Shenzhen Evening News reporter Chen Yushe

Expert introduction

Ye Jianhua, member of china wildlife conservation association, public lecturer of environmental education in China of Cornell University and WWF, member of Shenzhen Wildlife Conservation Association and member of Shenzhen Botanical Society.

strategy

Enter from the entrance of Longzhumen, Longzhu Sixth Road, and walk for about 100 meters. There is a fork. In the middle of the night, the reporter chose to walk along Panshan Highway (due north) for 400 meters (it takes 8 minutes and the steps are 720) to reach Tanglangshan Country Park Management Office (there is a public toilet).

Panshan Highway walks 3,200 meters to the Chaguang entrance (it takes 1 hour and 06 minutes, and the steps are 5,300). There are two public toilets in the middle, and each toilet is equipped with a vending machine, which mainly provides drinks and snacks. Passing through a rest pavilion and Qingyun Terrace.

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▲ After walking 3200 meters along Panshan Highway from Longzhumen, you can see the road sign in the direction of Chaguang entrance and exit. Shenzhen Evening News reporter Luo Ming photo

Go 1000 meters to the north of the Chaguang entrance and you can reach the Jimu Pavilion in Tanglang Mountain, passing through the Li Pavilion, Taoran Pavilion, Daguan Pavilion, Qicui Pavilion and the 100-foot ladder. Among them, there are often macaques in the Li Pavilion and Taoranting. Because wild macaques are aggressive, tourists should keep a certain distance from them. Located at the highest point of the mountain, Jimu Pavilion overlooks Hong Kong from a distance and Shenzhen from a distance, giving a panoramic view of the beautiful scenery of Shenzhen with mountains and seas.

Go west from the Chaguang entrance and exit and enter the 3180-meter-long Shenzhen demonstration hiking trail. If you walk less than 50 meters along the hand-made trail, you will pass through a steep mountain road with a length of 400 meters. In order to prevent citizens from slipping here, a safety rope is set. After crossing a litchi forest, the first information sign will appear. Continue to walk along the litchi forest in the direction of tea light, and you will pass a wooden bridge about 2 meters long. Walk another 300 meters, and a second information sign will appear. At this time, a fork will appear. Walk 1300 meters south, it will take 40 minutes to reach Xinwu Village and Tanglangshan Nature Education Center, and it is 2250 meters away from the entrance and exit of Chaguang. Reporter’s feeling: this 1000-meter mountain road is steep, easy to fall in rainy days, with more mosquitoes and lush vegetation on both sides of the mountain road.

Walk along the direction of tea light for another 1200 meters and see the third information sign. 30 meters away is Honghualing (north and south) scenic spot. In this 1200-meter journey, we first pass through a mountainous area with flat terrain, and there is no place on both sides of the road to block the sun. But this short section is the habitat of the kite, snake carving, mimosa, red-eared snipe, black-eyed toad and other animals and plants.

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▲ mimosa. Photo by Li Jingchuan

After crossing the flat land, you will enter the dense forest, where there are stone kerbs and barges, and there are plants and animals such as skinks and capers.

After coming out of the dense forest, you will pass through a litchi forest. When walking 460 meters down the left side of the mountain road, the fourth information sign appeared, indicating that there are 520 meters left from the entrance of Chaguang. When we arrive at the entrance and exit of Chaguang Zijian Garden, there will be a large banana forest. Therefore, the official divides this demonstration hiking trail into three sections: "Lilin Banana Shadow", "Valley Wild Interest" and "Deep Forest Exploration".

A total of 18,000 steps have been taken after completing the Tanglangshan section of Shanhai Corridor. Reporter’s feeling: There are no garbage bins and water supply points from the entrance to Chaguang to Honghualing Mountain. Citizens should prepare enough water when walking and consciously take the garbage down the mountain.

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▲ Hand-painted road map of the late-night interview group walking in Tanglangshan section of Shanhai Corridor. Cartography: Li Minghe

summary

Tanglangshan Park is rich in animal and plant resources, featuring natural ecology. Here, you can enjoy the national key protected plants, such as Cycas Xianhu, Alsophila spinulosa, Aquilaria sinensis, Golden Retriever, etc. Wild animals such as leopard cat, macaque, wild boar, kite, snake carving, thrush, kingfisher and so on add vitality to the silent forest. Among them, butterflies and macaques are the most distinctive, with 31 species of butterflies belonging to 8 families, such as Papilio maculata, Papilio Paris and Papilio Jade.

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▲ Macaques on Tanglang Mountain. Photo by Luo Ming

Safety tips

Prevent snakes and red imported fire ants. Travel together, don’t "date" with wild boar alone.

Shenzhen Evening News reporter Li Jingchuan Li Minghe Luo Ming/Wen Shenzhen Evening News reporter Chen Yu Li Jingchuan Luo Ming/map