Yes: Sponge city refers to the effective control of rainwater runoff by strengthening urban planning and construction management and giving full play to the absorption, storage and slow release of rainwater by buildings, roads, green spaces, water systems and other ecological systems. Realize the urban development method of natural accumulation, natural penetration and natural purification. Since the issuance of the "Opinions of the State Council on Strengthening Urban Infrastructure Construction" (Guofa [2013] No. 36) and the "Notice of the General Office of the State Council on the Construction of Urban Drainage and Flood Prevention Facilities" (Guobanfa [2013] No. 23) , all relevant parties actively implemented the relevant requirements of the new urbanization and water security strategies, promoted the sponge city construction pilot in an orderly manner, and achieved positive results in effectively preventing and controlling urban waterlogging and ensuring urban ecological security. In order to accelerate the construction of sponge cities, restore urban water ecology, conserve water resources, enhance urban flood prevention capabilities, expand effective investment in public products, improve the quality of new urbanization, and promote the harmonious development of man and nature, with the approval of the State Council, it is hereby proposed The following opinions: 1. Overall requirements (1) Work objectives. Through the construction of sponge cities, comprehensive measures such as "infiltration, retention, storage, purification, use, and drainage" are adopted to minimize the impact of urban development and construction on the ecological environment, and 70% of rainfall can be absorbed and utilized locally. By 2020, more than 20% of the urban built-up area will meet the target requirements; by 2030, more than 80% of the urban built-up area will meet the target requirements. (2) Basic principles. Adhere to ecology-based and natural cycle. Give full play to the accumulation effect of original landforms such as mountains, rivers, forests, fields and lakes on rainfall, give full play to the infiltration effect of natural underlying surfaces such as vegetation and soil, etc. on rainwater, give full play to the natural purification effect of wetlands, water bodies, etc. on water quality, and strive to realize the natural quality of urban water bodies. cycle. Adhere to planning guidance and overall coordination. Determine sponge city construction goals and specific indicators based on local conditions, scientifically prepare and strictly implement relevant plans, and improve technical standards and specifications. We will coordinate the natural ecological functions and artificial intervention functions, implement source emission reduction, process control, and system governance, and effectively improve urban drainage, waterlogging prevention, flood prevention, and disaster prevention and reduction capabilities. Adhere to government guidance and social participation. Give play to the decisive role of the market in allocating resources and the regulatory and guiding role of the government, increase policy support, and create a good development environment. Actively promote government-social capital cooperation (PPP), franchising and other models to attract extensive social capital participation in sponge city construction. 2. Strengthen planning guidance (3) Scientifically prepare plans. When formulating urban master plans, regulatory detailed plans, and special plans for roads, green spaces, water, etc., the total annual rainwater runoff control rate must be used as its rigid control indicator. When delineating urban blue lines, the natural ecological spatial pattern must be fully considered. Establish a regional rainwater discharge management system to clarify the total regional discharge and prohibit excessive discharge in violation of regulations. (4) Strictly implement the plan. Requirements for sponge city construction such as rainwater collection and utilization in buildings and residential areas, permeable area, and blue line delineation and protection should be used as prerequisites for urban planning permission and project construction, and rainwater runoff characteristics should be generally consistent before and after urban development and construction. In the review of construction drawings and construction permits of construction projects, sponge city-related engineering measures must be a key review content; the project completion acceptance report should indicate the implementation of sponge city-related engineering measures and submit it to the filing authority. (5) Improve standards and specifications. It is urgent to revise and improve the standards and specifications related to sponge city construction, highlighting the key content and technical requirements of sponge city construction. It is necessary to compile relevant engineering construction standard atlas and technical guidelines based on the goals and requirements of sponge city construction to guide the construction of sponge cities. 3. Coordinate and orderly construction (6) Coordinate and promote the construction of sponge cities in new and old urban areas. Starting from 2015, new urban districts, various parks, and development zones across the country must fully implement sponge city construction requirements. Old urban areas should combine urban shantytowns and dilapidated buildings in urban and rural areas, and organic renewal of old residential areas to solve urban waterlogging, rainwater collection and utilization, and treatment of black and smelly water bodies as breakthroughs, promote overall regional management, and gradually achieve the goal of no accumulation of water in light rains and no waterlogging in heavy rains. , the water body is not black and smelly, and the heat island is alleviated. All localities should establish a reserve system for sponge city construction projects, prepare rolling project plans and annual construction plans, and avoid large-scale demolition and construction. (7) Promote the construction of sponge buildings and related infrastructure. Promote sponge-type buildings and communities, and adopt measures such as roof greening, rainwater storage and collection and utilization, and micro-topography according to local conditions to improve the rainwater accumulation and retention capacity of buildings and communities. Promote the construction of sponge roads and squares, change the traditional practice of rapid and direct drainage of rainwater, enhance the rainwater absorption function of road green belts, expand the use of permeable paving in non-motorized lanes, sidewalks, parking lots, squares, etc., and promote road Collect, purify and utilize rainwater from the square to reduce pressure on the municipal drainage system. Vigorously promote the construction of urban drainage and flood prevention facilities to meet standards, accelerate the transformation and elimination of urban waterlogging points; implement the diversion of rainwater and sewage to control initial rainwater pollution, and rainwater discharged into natural water bodies must be purified along the shoreline; accelerate the construction and renovation of coastal interception main pipes , control leakage and combined sewage overflow pollution. Combined with requirements such as rainwater utilization, drainage and flood prevention, scientific layout and construction of rainwater storage facilities will be carried out. (8) Promote the construction of park green spaces and natural ecological restoration.

Promote sponge-type parks and green spaces, and enhance the urban sponge functions of parks and green space systems through the construction of rain gardens, sunken green spaces, artificial wetlands and other measures to absorb their own rainwater and provide space for storing rainwater in surrounding areas. Strengthen the protection and restoration of natural forms of water bodies such as urban ponds, rivers, lakes, and wetlands, and prohibit construction behaviors that damage the water ecological environment, such as filling lakes to create land, cutting off bends to straighten them, and hardening river channels. Restore and maintain the natural connectivity of rivers and lakes, build a benign urban water circulation system, and gradually improve the quality of the water environment. Strengthen the improvement of the river system, take advantage of the situation to transform channelized rivers, reshape healthy and natural curved river shorelines, restore natural deep pools, shoals and flood plains, implement ecological restoration, and create a diverse biological living environment. 4. Improve support policies (9) Innovate and build operating mechanisms. Distinguish the operating and non-operating attributes of sponge city construction projects, establish a cooperation mechanism for risk sharing and revenue sharing between the government and social capital, and adopt various forms such as clear operating income rights, government purchase of services, and financial subsidies to encourage Social capital participates in sponge city investment, construction and operation management. Strengthen contract management, strictly implement performance appraisal and pay according to performance. Encourage powerful scientific research and design units, construction companies, and manufacturing companies to combine with financial capital to form enterprise groups or consortiums with comprehensive business capabilities, and use general contracting and other methods to coordinate and organize the implementation of sponge city construction-related projects to maximize overall benefits. (10) Increase government investment. The central finance must play the role of “four or two”, coordinate and arrange funds to support through existing channels, and actively guide the construction of sponge cities. Local people's governments at all levels should further increase investment in sponge city construction funds, provincial people's governments should strengthen the overall coordination of sponge city construction funds, and urban people's governments should prioritize sponge city construction projects in their mid-term financial plans and annual construction plans and include them in Scope of local government procurement. (11) Improve financing support. All relevant parties must regard sponge city construction as a key livelihood project to support, give full play to the role of development and policy finance, and encourage relevant financial institutions to actively increase credit support for sponge city construction. Encourage banking financial institutions to provide medium and long-term credit support for sponge city construction on the premise of controllable risks and sustainable business, actively carry out innovative loan business with guarantees such as expected income from purchase service agreements, and increase funding for sponge city construction projects. Strength of support. Qualified projects in sponge city construction will be included in the support scope of the special construction fund. Support qualified enterprises to raise funds through the issuance of corporate bonds, corporate bonds, asset-backed securities and project income notes, etc., for sponge city construction projects. 5. Do a good job in organizing and implementing the urban people's government, which is the main body responsible for the construction of sponge cities. It is necessary to put the construction of sponge cities on an important agenda, improve the working mechanism, coordinate planning and construction, start implementation as soon as possible, and enhance the integrity and systematicity of sponge city construction. Achieve "planning a picture, building a chess game, and managing a network." The Ministry of Housing and Urban-Rural Development should work with relevant departments to urge and guide all localities to do a good job in sponge city construction, continue to do a good job in sponge city construction pilots, and form a batch of popularized and replicable demonstration projects as soon as possible. Once the experience is mature, they will be summarized and publicized in a timely manner and effectively promoted; The National Development and Reform Commission should increase the support of special construction funds for the construction of sponge cities; the Ministry of Finance should actively promote the PPP model and provide necessary financial support for the construction of sponge cities; the Ministry of Water Resources should strengthen the guidance and supervision of water conservancy work in the construction of sponge cities . All relevant departments must perform their respective duties according to the division of responsibilities and work closely together to complete the work related to the construction of sponge cities.