Research On Construction Of Nanjing Green Infrastructure Network Based On GIA

The rapid urbanization process has led to many severe ecological problems.How to balance the contradiction between urban construction and ecological protection has turned into an important issue facing major cities.With the impact of urban expansion in Nanjing,a lot of problems have occurred in the built-up areas of the ecological area,the degradation of urban ecological functions,landscape fragmentation,and reduced connectivity.As a smart development strategy under the background of rapid urbanization,green infrastructure is a holistic approach that takes into account the functions of nature protection and social services.It is of great significance for solving regional ecological issues and guiding the development of urban land in a healthy and sustainable direction.As a core technical method for green infrastructure planning,the green infrastructure assessment system integrates ecology,conservation biology,and geographic information system science into the planning,and builds a highly efficient and flexible quantitative evaluation system to become a supporting green infrastructure.The planned basic technology platform.In this context,based on the basic technical methods of GIA,the core technology platform for the construction of green infrastructure for Nanjing’s regional characteristics is analyzed.The regional space of Nanjing is analyzed,and the potential ecological resources are improved,the quality of the urban ecological environment is improved,and the urban space is guided.Healthy and sustainable development has great significance.Based on the analysis of related excellent green infrastructure planning cases at home and abroad,this paper takes the Nanjing area as a research area,and proposes the green infrastructure construction goals for the current status of the city area: to control the unlimited spread of cities,tap potential ecological spaces,and establish a multi-level ecological protection network.Based on the core technical methods of Nanjing city area,the remote sensing image data and related basic data of Nanjing city area are processed,and the GI network elements are identified using factor hierarchical analysis method and minimum cost path method,including source patches and potential ecological corridors.Road identification,and jointly build a green infrastructure network in Nanjing.Finally,the situation of Nanjing’s current planning and the construction of green infrastructure are compared and analyzed,and actual network construction measures are proposed,including networked ecological space protection,specific control measures for GI network elements,multifunctional value mining,integration into related planning,cooperation between multiple departments and public participation.