Construction And Research Of Yuanling County Ecological Corridor Based On Comprehensive Evaluation Method

With the acceleration of the urbanization process,ecological and environmental problems have become increasingly serious,healthy ecosystems and ecological service functions have been destroyed,and habitat patches in the region have been fragmented,which has seriously affected the normal migration and circulation of organisms in the region,and has posed a huge challenge to the protection of biodiversity.The construction of ecological corridors can connect broken patches,provide channels for organisms to flow and migrate between patches,and improve the overall landscape connectivity of the region,which is of great significance for improving regional ecological security and promoting regional sustainable development.Through the R-type cluster analysis,the correlation of 14 evaluation indicators was tested,the results of R-type cluster analysis and principal component analysis were synthesized,and the evaluation index of ecological corridor was screened,and the sub-wood cover index was finally removed,and the other 13 indicators were retained for the next step of research.adopts the entropy right method as the comprehensive empowerment of the evaluation indicators,and adopts the research framework of "research background-basic research-evaluation system construction-evaluation result analysis-design strategy and method formulation" through field research and forest resources survey data.This paper focuses on the analysis of the ecological service function and ecological sensitivity of 25 ecological corridors in Yuanling County,of which high sensitivity accounts for 12.61%,and the value of ecosystem services in the study area is extremely important accounted for 16.60%,and finally the comprehensive evaluation method is used to construct an evaluation system,divide the importance level of ecological corridors,and obtain the first-level ecological corridor X001,X004,X022,Y427,G241.Combined with the forest stand,site type and site status of each first-level ecological corridor,according to the principles and methods of ecological corridor construction,seven ecological corridor operation modes of forest vegetation greening and expansion type,precise improvement of forest quality,replanting and afforestation of precious tree species,replanting of precious tree species,afforestation type of forest landscape quality improvement,ecological restoration type of damaged mountain,ecological restoration type of small and micro wetland,and ecological restoration type of mine pollution(abandonment)were studied,and targeted business models and optimization strategies were proposed for the construction of ecological corridors in Yuanling County.The combination of theory and practice of this study aims to help the scientific implementation of the ecological corridor construction project in Yuanling County,and provide some broader ideas for the research of ecological corridors in China,provide theoretical supplements and practical verification for improving the evaluation system of ecological corridors,and provide reference and demonstration for the construction of ecological corridors of similar scales in China.