Research The Optimization Of Ecological Land Red Lines In Multiple Plans Integration

Drawing of ecological red line is not only the important bottom line to maintain ecological security,but also one of the important measures to guarantee sustainable economic development.With the rapid development of Chinese economy and society,the further advancement of urbanization,unbalance between the level of regional land urbanization and the level of population urbanization,unreasonable expansion of urban space and arising of other serious problems,ecological protected zone is further becoming small,and the integrity of ecosystem function is further threatened.Meanwhile,a single level of planning has not been able to comprehensively coordinate the complex problems faced by China's urban and rural transformation and development,and replacing multiple plans for national and provincial pilot cities and counties development with one master plan has been carried out overall."multiple plans integration" divides organic and unitive production,living and ecological space to implement the classification and control of national land space and optimize the allocation of land and resources,to promote the formation of an efficient,coordinated and sustainable national land space pattern,mainly through analyzing the cohesion and conflict of various space planning in development goals,strategic orientation and spatial layout.As a result,multiple plans integration plan is of important significance on conflict coordination of land space,reformation of the government leading system,the establishment of spatial planning system with mutual complementary cohesion and coordination and promotion of coordinated development of economic society and ecological environment.In this study,the concept connotation,theoretical basis and development course of multiple plans integration and ecological red line were analyzed.Taking Yingjiang County as an example,the ecological red line protected areas of water conservation,biodiversity,soil and water conservation and ecological sensitivity were delineated from the perspective of ecological service and ecological sensitivity.By using ArcGis spatial analysis method,the vector layers of the red line area were superposed and analyzed,and bases on the concept of "multiple plans integration",different types ofcoordination principles for ecological red line were formulated;in accordance with the principle of coordination,the conflicts between different types of ecological red line areas were coordinated from the angle of being convenient for management and protection of red line areas,and finally the ecological protection red lines were formed.The result shows that the total area of the four types of ecological land protection red line based on the single element is 2391.86 square kilometers,accounting for53.98% of the total area of Yingjiang County.After coordinating,all of the ecological red-line zones is 2072.89 square kilometers,while the red-line zones of the water source conservation is 399.46 square kilometers accounting for 9.02% of the total land for in Yingjiang County,the biodiversity is 699.24 square kilometers accounting for 15.79%,the water and soil conservation is 338.69 square kilometers accounting for 7.65% and the ecological sensitivity is 635.5 square kilometers accounting for14.35%.Looked from the spatial distribution,the four type of ecological red-line zones has distributed in Yingjiang County,and the distribution red-line zones of ecological sensitivity is rather scattered than the other three types of red-line zones which have obvious regional characteristic.Study on the optimization of ecological red lines in multiple plans integration realized identity of different types of ecological protection red lines in space.It could provide reasonable basis for protecting and managing the regional ecological environment,developing the regional resources reasonably and orderly,ensuring and keeping the regional sustainable development and so on.Also,the county is a connecting link in the administrative management of China,and can be taken as the basic carrier of resource environment utilization and management.Taking Yingjiang County as an example,study on the optimization of ecological red lines based on the concept of replacing multiple plans with one master plan could also provide reference for other regions.