Optimization,Integration And Landscape Planning And Design Of Yichuan Yihe National Wetiand Park In Henan Province

Since the middle and late period of the last century,the impact of human activities has led to more and more serious problems such as global warming,climate drought,and serious environmental pollution,among which more ecological environmental problems have been caused globally.Coupled with the rapid development of urbanization,the agglomeration of urban wetland area,especially the urban wetland ecosystem,has declined.Promoting the sustainable development of the world has become a global problem,the reduction of river wetland area and water pollution,threatening the sustainable development of cities.Based on landscape ecology,landscape morphological Spatial Pattern(MSPA)analysis and landscape connectivity index analysis method,this paper sorted out the current problems existing in Yichuan Yihe National Wetland Park and its buffer space through field investigation and literature review.The minimum cumulative resistance model(MCR)was used to construct the potential ecological corridor,and the landscape connectivity index was used to screen the ecological sources in the study area and construct the landscape ecological corridor.The boundary of Yichuan Yihe National Wetland Park in Henan province was optimized.Combined with domestic and foreign excellent practice cases to make the overall planning of Henan Yichuan Yihe National Wetland Park,key project zoning planning and special upgrading design.The main conclusions are as follows:(1)In Yichuan Yihe National Wetland Park,Henan province,the maximum importance of patches was 77.65,which was located in the central functional core area,within the 500 m buffer zone,and the core area accounted for 28.10% in the region.The patch structure was good.The minimum landscape segmentation index,Shannon diversity index 0.52,0.80;The values of the same index in the three buffers are the smallest.The maximum values of dispersion and correlation index,maximum patch index and degree of cohesion were 74.23,65.38 and 99.11.The values of the same index in the three buffers are the largest.The maximum value of cultivated land patch was 0.55,occupying the dominant position,and the maximum value of land cohesion of water conservancy facilities was 59.66.(2)In Yichuan Yhe National Wetland Park,Henan province,the functional buffer zone was transferred to 40 hm2,and the functional core area was transferred to 16.70 hm2,mainly for the purpose of identifying potential large patches in the surrounding buffer zone and providing a stepping stone for good habitat on the species migration route.Within the main urban area,3.03 hm2 of functional buffer zone and 53 hm2 of functional core area are transferred.678.58 hm2 of functional core area is reduced by 36.3hm2,and 588.3 hm2 of functional buffer area is increased by 36.97 hm2.The difference before and after adjustment was 0.67 hm2,the ratio of forest patch area to total area increased by 0.02%,and water area and land for water conservancy facilities increased by 0.01%.(3)In Yichuan Yihe National Wetland Park,The patch area of industrial,mining and storage land,cultivated land and residential land is 79.24 hm2,accounting for 5.70% of the study area.After optimization,the ratio of total area of industrial,mining and storage land,cultivated land and residential land to total area is reduced by 1.97%.(4)Based on the identification of ecological patches in Henan Yichuan Yihe National Wetland Park,there are 45 important core patch ecological corridors in henan Yichuan Yihe National Wetland Park,among which 9 are the path with minimum resistance value and 8 are the patch path with small resistance value distributed in the 500 m buffer zone.It is mainly transferred to areas with high coverage of woodland and water areas such as southwest pengpo Village of Pengpo Town,west of Jimo Village of Pingping Township,east of Sihetou Village,east of Xingying Village and east of Mazhuang Village to enhance connectivity between patches.The whole scheme provides planning guidance for the buffer zone of Yichuan Yihe National Wetland Park in Henan Province from the aspects of planning guidance objectives and principles,planning and design protection strategy,upper planning interpretation,overall planning,key project zoning and special design.The overall layout mainly aims at the connection and optimization of the urban river wetland corridor.The special planning mainly enhances the landscape heterogeneity and ecosystem stability of the urban river wetland from the aspects of waterfront revetment,plant configuration,road design,bird-watching facility construction,pro-level platform design and popular science education.Through ecological landscape planning,it creates an urban green corridor and a city and river integration zone integrating landscape,culture,leisure,entertainment and industry,which contributes to the development of urban construction and provides reference for the landscape planning and design of urban river and wetland National Park.