Xiong an ecological ambition: the forest coverage rate will reach 40%.

category:Society
 Xiong an ecological ambition: the forest coverage rate will reach 40%.


In the unveiled Xiong an new area planning program, the new town of Xiong an new area is located in the north, and the south is Baiyangdian. North City, Zhongyuan and Nan Dian, this is the pattern of Xiong an new district. In a larger pattern, Xiong an stands against the ecological barrier belt in Taihang Mountain Area and faces Bohai, forming a landscape pattern of landscape and forest fields in Lianshan Tonghai, which constitutes the ecological basis for the construction of the Xiong an new area. In his speech, the general secretary of the Central Committee of the Communist Party of China, Xi Jinping, pointed out that the planning and construction of Xiong an new area should adhere to the ecological priority and green development, and build a green ecological livable new urban area, create a beautiful ecological environment, and build a blue green interwoven, fresh and bright, Watercity ecological city. The ecological pattern of the New Area In the construction of ecological structure in Xiong an new area, the proportion of blue and green space was the first to be determined. Wang Jinnan, academician of the Chinese Academy of engineering and President of the Environmental Planning Department of the Ministry of ecology and environment, led the development of the ecological environment protection plan for Xiong an new district. He told China News Weekly that when developing a region, we should define the proportion of three spaces of ecology, agriculture and town. In the past, other spaces were usually delineated, and the rest of the rest was designated as ecological space, so the protection of ecological environment was often very passive. In the planning process of the Xiong an new area, in order to implement ecological priority, green development, and strive for ecological space, the delimitation of three life (production, living and ecological) space is ahead of time. Qu Jiuhui, academician of the Chinese Academy of engineering and former director of the center for ecological environment research of the Chinese Academy of Sciences, led the development of Baiyangdians ecological environment management and protection plan. He told China News Weekly that at first, it was suggested that ecological space should account for 70%. Later, after repeated deliberation, this proportion was eventually retained. This figure is determined, and the boundary of the development and construction is clearly defined in the New District, which also provides a basis for the determination of other indicators. According to the Hebei Xiong Anxin district planning outline, in the area of about 1770 square kilometers in the new area, the proportion of blue green space occupies 70%, the development intensity of the vision is controlled by 30%, the total scale of the construction land is about 530 square kilometers, and the total area of the cultivated land is about 18%, of which the permanent basic farmland accounts for 10%. Wan Jun, deputy chief engineer of the Environmental Planning Department of the Ministry of ecology and environment and director of the strategic planning department, is involved in the formulation of the ecological environment protection plan for Xiong an new district. He told China News Weekly. In the future, Xiong an new area will realize the area classification management and control ecological space, the efficient and intensive construction of urban space, and the high standard demonstration and construction of agricultural space. In particular, the land space, which has the natural attributes, to provide ecological services or ecological products as the main function, including the Baiyangdian wetland protection area, the New District, the ring new town, the Baiyangdian forest belt and the ecological corridor area along the river, will be classified and protected by the zoning. The forest belts and ecological corridors by Wan Jun are part of the ecological pattern of Xiong an new area, that is, one lake, three belts, nine pieces, and many corridors. One lake, namely the Baiyangdian wetland protection area, the three belt, is the new area, the ring new town and the Baiyangdian ecological forest belt; nine, for the city group and the important ecological conservation areas, the construction of 9 large near natural forest patches; the multi corridor, that is, relying on the Baigou diversion River, the Pinghe River, the waterfall river, the Caohe River, the Fu He River, Tanghe, Xiaoyi River and Xiaoyi river. Dragon River, Zhao Wang, New River, Daqing River and other rivers come into the river to build an ecological corridor area. In addition, a green corridor should be built along the main line. In the future, in the green belts and ecological corridors of new areas, we will build ecological forest and landscape ecological forests to form a plain forest net system. Highlighting native tree species and local characteristics, and combining various ways of mixing, we will build large near natural forest patches. The new area will also increase the forest coverage rate from 11% to 40% by large-scale afforestation. By restoring the large wetland in the south of the city and the north of Baiyangdian, large country ecological parks, large comprehensive parks, and community parks are built in the starting area to realize the forest around the city and the wetland into the city. The people living here can enter the park 300 meters into the park, 1 kilometers into the forest belt, 3 kilometers into the forest, and the streets achieve 100% shady trees. The greening coverage rate reached 50%. Another focal point discussed by the planning group is the delineation of the red line for ecological protection. According to the request, Xiong an new district will implement the strictest ecological environment protection system, and the urbanization and industrialization activities in the red line area should be prohibited. Dan Baoqing, a researcher at the Chinese Academy of Sciencess ecological environment research center, is involved in the development of Baiyangdians ecological environment management and protection plan. He told China News Weekly that the red line of Xiong an new ecological protection line was determined mainly in Hebei Province, but the Baiyangdian planning group also gave priority to the principle of the delimitation of the ecological red line. The demarcation work is jointly formulated by the Baiyangdian planning compilation group, the environmental protection planning department of the Ministry of ecological environment and the Hebei provincial environmental protection department. Baiyangdian is a nature reserve and is protected in a historical circle. Where the ecological quality is good and the value of the Germplasm Repository is high, the other areas, such as experimentation area and buffer zone, allow for the development of some ecological services. Finally, all parties reached a consensus. First, the core area of Baiyangdian is the red line area of ecological protection. There are ecological degradation in some parts of the core area of Baiyangdian. Some of them can not reach the protection standard of the ecological protection red line. At present, the general situation of the whole country is that the red line of the ecological protection of the Yangtze River economic belt is about 21% to 25%, and Beijing, Tianjin and Hebei generally have 23% to 27%. After discussion, it is believed that the future of Baiyangdian will be gradually restored through governance, and the construction of forest patches and ecological corridors will be gradually expanded, and these areas can be included in the ecological red line. The third important problem in the construction of ecological pattern is the design of ventilation corridors. Ventilation corridors, that is, through urban roads and buildings, enhance urban air circulation capacity and ease urban heat island effect. This word has been increasingly appearing in different urban planning. As far as Xiong an new area is concerned, the local air flow microcirculation system should be constructed to break the circulation of urban heat island, to form a spatial distribution for the diffusion of pollutants and to send the cool air in Baiyangdian to the center of the city. Wan Jun introduced, they proposed in the plan, proposed the height of the Baiyangdian coastal building control, Baiyangdian and the new town area, to avoid the construction of intensive and comprehensive development of the platform type of architecture. In addition, the main wind direction of the city is the north-south direction, so the ventilation corridor is also designed as the North-South Road axis. Generally speaking, ventilation corridors are also ecological passageways, and both sides of corridors should be constructed with forest belts. These specific measures will eventually be built into the ecological pattern of Xiong an New Area -- the regional ten ecological security pattern of Lianshan Tonghai. East and west along the main rivers to build up the Taihang Mountains - Bohai bay ecological corridor, forming the natural and smooth ecological corridor of the ecological resources of the upper and lower reaches; the north and south to build the ecological corridor of the ecological green wedge in the south of Beijing - the refusal of the Horse River - the river - Baiyangdian. Baiyangdian, Hebei Province, Xiong an New Area Synergistic governance in Baiyangdian Baiyangdian is the largest freshwater lake in the North China Plain. It plays an important role in maintaining the balance of the wetland ecosystem, regulating the climate of the Hebei plain and the Beijing Tianjin area, supplementing the groundwater and protecting the biodiversity and rare species resources. Therefore, it is called the North China Pearl and the kidney of North China. The first is the shortage of water resources. Since the 80s of last century, the amount of water coming from the upper reaches of Baiyangdian has been decreasing, and the ecological water demand is difficult to protect. In the past, when the rainfall was abundant, the water area in Baiyangdian was basically around 300 square kilometers. In recent years, the water area was about 150-200 square kilometers. The main reason for this is that over the past twenty or thirty years, the Haihe River Basin has experienced an overall reduction in precipitation. At the same time, the intensity of upstream water resources utilization increased, especially the increase of agricultural water and excessive use of groundwater. There are 8 rivers in the upper reaches. Besides Fu River and Xiaoyi River, there are 6 other rivers, such as Tanghe and chi long river, which have dried up all the year round. The second problem is the problem of pollution. There are two main types of pollution in Baiyangdian: one is the pollution of upstream water. The inflow of the Xiaoyi River and the Fu River to Baiyangdian is basically the tail water discharged by the municipal sewage plant, and some of the uncollected sewage, the water quality is not up to the standard, mainly five types or inferior five types of water, and the problem of nitrogen pollution is more prominent. Water fluctuates from 50 million to 80 million per year. Another kind of pollution comes from Baiyangdians Dian Zhong village and Dian Bian village. According to the survey, there are 40 villages in Baiyangdian, with about 95 thousand and 100 household registration. In the 60s of last century, there were only more than 10 thousand people in the village. We can imagine the pressure of the present population on Baiyangdian. Qu Jiuhui said. According to the survey data, the main pollutants in Baiyangdian are total phosphorus, COD, total nitrogen and ammonia nitrogen. The contribution of pollution load in Dian Zhong village and Dian Bian village accounted for about 67% of total phosphorus, about 65% of COD, 45% of total nitrogen and 30% of ammonia nitrogen. The pollution of Baiyangdians water quality in Dian Zhong village and Dian Bian village can be seen. Qu Jiuhui believes that the third problem in Baiyangdian is the fragmentation of the habitat. In the past, the ecosystem of Baiyangdian was complete, but with the development of aquaculture and planting, the intensification of human activities such as water, levee, crest, ponds and ponds, some places gradually dried up, and the water bodies were no longer connected, and the habitats were gradually broken. According to reports, there are more than 300 kilometers of roads and more than 1000 kilometers of embankment in Baiyangdian. Now that Baiyangdian is polluted, there is no clean water, the function of the ecosystem is decreasing, and the self purification ability of the water body is gradually losing. Qu Jiuhui said. In response to these problems, the planning team has worked out a solution for watershed collaborative governance. Dan Baoqing told China News Weekly that, in view of the shortage of water resources, the team calculated that in an ideal state, there should be 300 million to 400 million parties in Baiyangdian each year. To this end, the plan put forward the idea of establishing a multi source water replenishment mechanism and optimizing the ecological water supplement in the lake area. The establishment of a multi-source water replenishment mechanism, namely the introduction of external water, mainly the introduction of the Yellow River water. Dan Baoqing said that the measures have been carried out for several years. The scale of the past is about 100 million square meters per year. It can only maintain the surface area of more than 100 square kilometers in Baiyangdian, barely maintain the production and the most basic ecological needs of the lake area, and can not recover the ecological effect. After that, it will increase the volume of the Yellow River water into Baiyangdian every year to 200 million parties, which can be realized by appropriately prolonging the diversion time or increasing the discharge rate. At present, the Yellow River adds water to the 600 million Party of Hebei every year, and the Yellow River Diversion Project in Baiyangdian depends on the internal quota of Hebei, not exported by the Yellow River. Another solution to the scarcity of water resources is to rely on upstream reservoirs and water treatment. According to the water resources department of Hebei Province, the number of upstream reservoirs is about 700 million. In the middle route of the south to North Water Transfer Project in Hebei Province, the auxiliary project of the middle route of the water transfer to the city and the industry has been supplied to the ecological water for water supply to Baiyangdian by channel or channel. In addition, the river and Xiaoyi river every year have urban drainage and industrial sewage into Baiyangdian, water from 50 million to 80 million parties, the water through recycling, can become a high quality ecological source of water into Baiyangdian. For the pollution problem, single Baoqing said that the river map and the lake map have been given to control the eight upstream rivers and the Baiyangdian Lake area respectively. The river map has done the one river and one policy, implements the river water quality target management, through the river basin control source - pollution control - River system management, reduce the pollution load into the river, ensure the water quality of the river to reach the water function standard. In view of Baiyangdian Lake area, scientific and rational desilting should be carried out to eliminate endogenous pollution. He said that the ecosystem of Baiyangdian is complex, the pollution of the lake area is different, and the water quality of some waters is better, but the pollution is heavier in general. In addition, there are germplasm resources in the sediments, which can not be cleared away. Moreover, the spatial difference of silt thickness in Baiyangdian is quite different. In the silt, some of the aquatic plants such as Phragmites australis rot and deteriorate are important objects for dredging. The normal water level in Baiyangdian is 7 meters and the average mud thickness is about 1.5 meters. The deepest place is 3 meters thick silt, shallowly, 0.5 meters thick -0.6 meters. So it is necessary to carry out precise silting, that is, under the basic goal of protecting and restoring the water ecosystem, how much is the clear, the maximum reduction of the amount of silting, the reduction of the cost of silting and the preservation of the ecological matrix. However, the problem of breakage in the Poyang habitat requires ecological restoration to restore the function of kidney in North China. Qu Jiuhui introduced, mainly to build ecological island, optimize the ecological pattern of the lake area, reform and control the existing lotus pond micro geomorphology, improve the biodiversity, and restore the natural landscape of the Reed Sea lotus pond in Baiyangdian. The planning team has set up a three year action plan for governance, which is now in progress. Dan Baoqing said that the eight rivers in the upper reaches still have priority in governing the Fu River and Xiaoyi river where water enters the lake. In northern Baiyangdian, waters near the starting area will be treated first. In the future, Baiyangdian will carry out different levels of ecological environment management and control according to different space control requirements. It will be divided into one, two and three levels. The first level is the red line area of ecological protection, and the most stringent ecological protection control measures are implemented in the red line area. Qu Jiuhui said that this is an important innovation in this plan. There is a clear environmental management standard for the hierarchical management and control of ecological space. For example, in the first level ecological space area, the limit control requirements for pollutant discharge in the basin are very high, and a clear negative list management should be carried out, and the interference brought by human activities is reduced to a minimum. In addition, there are special plans to adjust and optimize the layout of industrial structure in the new and upper reaches. About 80% of the new area enterprises need to be optimized and adjusted. High pollution, high water consumption, high energy consumption and low end backward production capacity are all faced with elimination or optimization adjustment. According to the requirements, the newly introduced are high-end high-tech industries, such as electronic information, life technology, cultural and creative, civil military integration, science and technology research and development. From the status and function of Baiyangdian, it is an important ecological resource guarantee for the construction and development of the Xiong an new area. It also has a special resource and environmental significance for the coordinated development of Beijing, Tianjin and Hebei. In terms of ecological conditions, Baiyangdian is facing the challenge of water shortage and global climate change in the north, and its comprehensive governance has the same character of the times. Why is it comprehensive governance? Because it lacks water, pollution and ecosystem fragmentation, it has strong representativeness and comprehensiveness. In addition, from the means of governance, there are also comprehensive characteristics, not only the measures of water diversion, but also other types of engineering measures, including the source of pollution control, river control, sediment dredging, ecological system construction, ecological river bank construction and environmental comprehensive management. Many governance measures are synchronous and comprehensive. These aspects are representative and exemplary. In the vicinity of the Xiongxian Baiyangdian scenic area, the villa is adjacent to the unmanned aerial vehicle. Regional governance of the atmosphere, soil The governance of Baiyangdian pays attention to the coordinated management of the river system. Wang Jinnan told China News Weekly, in 2017, the average annual concentration of PM2.5 in Xiong an new area was 67 mg / m3, 55% higher than the national average of 43 mg / cubic meter, 35 mg / cubic meter higher than the national two level standard, 113 mg / cubic meters per year, 50.6% of the national standard 75 mg / m3, and the proportion of fine days. It is 61%, 17 percentage points lower than the national average, and 8% of heavy pollution days. The atmosphere of Xiong an is imminent. Xiong ans air pollution is related to air pollution in Beijing, Tianjin and Hebei. In the past, in the fog and haze weather, the concentration of particulates in the surrounding air of Baiyangdian was even higher than that in other places. The air conditioning of Xiong an should be considered at the level of regional governance, and the particularity of Baiyangdian must also be considered. In 2017, the new area has launched a face washing project. The state has allocated 500 million of its funds, and has achieved initial results in eliminating pollution points, cutting off pollution sources and shutting down polluting enterprises. As of the end of October 2017, more than 9400 new scattered enterprises in the new district were shut down. Wang Qian, assistant director of the strategic planning department of the Environmental Planning Department of the Ministry of ecology and environment, and director of the National Planning Research Office, participated in the formulation of the ecological environment protection plan for Xiong an new district. She said that after the face washing project was carried out, the control effect of Xiong an was obvious, the air quality was better than that of the surrounding area, and the PM2.5 average index was 10% to 20% lower than that in Baoding. After that, the new area will continue to consolidate the existing measures to implement zero pollution industry zero - coal, zero - bare zero - weight diesel vehicle, zero - weight diesel vehicle, four near zero measures. According to the outline, the new area will make full use of the abundant wind power and photoelectric resources in Zhangbei area, and build the Zhangbei - Jizhong Nantes high pressure channel to realize the clean electricity supply in the new area. The new area will also build an intelligent distributed energy system to improve the utilization efficiency of renewable energy. The new area will take the natural gas of long distance pipeline as the main gas source, the liquefied natural gas is the emergency energy for peak adjustment, and relying on the regional gas transmission and distribution project to build a new natural gas transmission and distribution system in the new area with multi source and multi direction and interconnected. In addition, the new area will also take the renewable utilization of geothermal resources as the premise, explore the use of geothermal heating, and build a multi - complementary clean heating system, such as geothermal, biomass and natural gas. In addition, the new area will also lead to the construction of the surrounding 11 counties, industrial access, industrial pollution, coal, motor vehicles co governance, and Baoding, Shijiazhuang, Hengshui, Cangzhou, Langfang and other cities of the atmosphere of 5 urban environmental governance. The industrial structure of the new area is very similar to that of the 11 neighboring counties. It can not be said that the clean-up and separation of the walls are still scattered. The surrounding areas must be promoted for industrial upgrading and coordinated governance. This is a forced mechanism to promote the coordinated development of Beijing, Tianjin and Hebei through the construction of Xiong an new area. Wang Jinnan said. According to the survey, the soil environmental quality of Xiong an new area is generally acceptable, but there are soil pollution problems in some areas. In particular, heavy pollution enterprises and surrounding areas, sewage irrigation areas, major vegetable bases and livestock and poultry farming surrounding soil pollution is more serious. In addition, the pollution pits are widely distributed. As of October 2017, Xiong an new district has identified 589 water and sewage pits. At the same time, the scattered enterprises in the new area are more concentrated. As of October 2017, there were 12098 scattered enterprises in the new area, mainly plastic manufacturing, shoes making, textile printing and dyeing enterprises, among which plastic processing industry accounted for more than half of the scattered pollution enterprises in the new area. In the next step, the new area will check and renovate the pollution ponds, large-scale livestock and poultry farms, irregular garbage stacking points, black and smelly water bodies, check out illegal enterprises, illegally entering the river sewage outlet, investigate and deal with industrial enterprises exceeding the standard pollution discharge, complete the heavy pollution industry, such as scattered coal and smelting, plastic processing, lead storage battery recycling and so on. Treatment. In addition, the new area will also carry out the soil baseline survey and detailed investigation. We hope to complete the detailed investigation of soil environmental pollution in the whole area by the end of 2018, and implement the management of farmland soil classification management and construction land access management. According to Wan Jun, at present, the garbage disposal and recovery system in the new area needs to be improved. After that, the new area will fully implement the classification and reduction of garbage source, classified transportation, classification and transfer, and classified disposal to realize the zero landfill of primary waste, and the rate of innocuous treatment for domestic waste can reach 100%. In the area of sewage treatment, based on the spatial layout of the New District, the new area will consider the convenience and economy of sewage collection and recycling, and build a relatively centralized and moderately dispersed sewage treatment facility. The rate of sewage collection and sewage recycling will be 100%. Wang Jinnan said that according to the current prediction, the demand for funds for ecological environment management will exceed 100 billion scale. Tourists take a small wooden boat to visit the scenery of Baiyangdian, Baoding, Hebei. Using environmental forcing industry The efforts to build a green and livable new town in the new area are not only reflected in the management of the ecological factors, but also in the process of integrating the concept of green and low carbon into the construction and operation of the new town. In the past urban construction, dust was very serious. Wan Jun said, in fact, these can be reduced as far as possible by some technical means. At present, the whole country has been carrying out six hundred percent in construction site construction, that is, 100% standard enclosure of construction area, 100% cover of bare loess, 100% hardened construction road, 100% closed transportation vehicle, 100% washing and cleaning in construction site, 100% wet method of building demolition. The new area will also carry out these six hundred percent in the process of construction. In addition, at present, domestic environmental management of construction machinery is not enough, such as excavator and mixer pollution emissions do not have specific control measures. According to Wang Jinnan, the plan will make special standards for this kind of large-scale engineering machinery, and carry out this standard in the construction of Xiong an new area, and then it can also be extended to the whole country. In addition to green construction, the new area will also build green buildings, including new government investment and large public buildings to implement three-star green building standards. In terms of water saving, the production and living water of the new area is supplied from the south to North Water Diversion Project and the above swimming reservoir is used as an emergency standby water source. On this basis, the new district has established the red line of total water use. By 2035, the total amount of water used in the new district will be controlled within 650 million -7.5 cubic meters. According to the data of the National Bureau of statistics, in 2015, the per capita daily water consumption of Chinese cities was 174.46 liters, and the standard of Xiong an new district would be higher and stricter. Wan Jun told China News Weekly. At present, the municipal facilities in many cities in China have the problems of water pipe running and leakage, and the waste of water is very serious. Xiong an as a new town, municipal facilities first can be high standard construction of the official network, to ensure that no running and leakage, secondly, the use of alternative water resources, such as toilets can use water. In fact, as long as the equipment and facilities are in place, the requirement of one hundred litres will not affect everyones life. Now, materials and technology are not problems. Many cities fail to do so. They are the problems of ideas and management, and the cost of old city transformation. Everything is new in Xiong an new area. We also hope that we can set standards up and do all at once. Wang Jinnan said. In addition, the new district will build a green and convenient public transport system. Bus + bicycle + walking will be the main mode of travel in the city. The proportion of green traffic in the new area will account for 90%, and the proportion of public transportation is 80%. According to the idea of ecological priority and green development in Xiong an new area, the new area will surely create a huge market for energy saving and environmental protection industries. Wan Jun said that in the future, the new area will become a model innovation base for energy conservation and environmental protection industry. Wang Jinnan said that the new area will explore and perfect the ecological environment market mechanism, improve the price mechanism of the resource and environment, implement the compensation mechanism of ecological protection, establish the green industry investment fund in the new area, carry out the mode of government and social capital cooperation, strengthen the construction of the green financial system, and attract all kinds of capital into the field of ecological and environmental protection. These standards are bound to force the existing industry to carry out green transformation and upgrading. In the future, the new area will vigorously develop green industries such as intelligent information, biological health and high-end services, and build green, financial and technological innovation and service networks. Wan Jun revealed that the negative list management will be implemented in the New District in the future. The assessment will be very strict. It will involve environmental credit evaluation, mandatory disclosure of information and severe punishment. Wang Jinnan told China News Weekly: in addition to the cooperative governance in the region, we hope to carry out the concept of green development to the whole process of development and construction. They can not be developed by one set of people. Environmental protection should be managed in the fields of management, development and production. Environmental protection is not the latter thing. It should be considered at the very beginning. We hope to promote the concept of big environmental protection and form a coordinated and comprehensive management of management system, rule of law, market mechanism and social co governance.