Construction and Analysis of Ecological Security Pattern Based on Minimum Resistance Surface Model
With the accelerated expansion of urbanization,human impact on the environment and re-source consumption have reached historical highs.The continuous intensification of environmental pollu-tion has become an important factor affecting ecological security,and it is urgent to build an ecological security pattern,to provide reference for further improving the ecological space protection system,opti-mize land development and protection pattern.This paper constructed the ecological security pattern of Mojiang County based on the minimum resistance model,and determined the impact factors of ecological source,area threshold,resistance surface and their weights and resistance values at all levels through ex-pert scoring method.Based on the minimum resistance model,the ecological resistance surface of the en-tire county was established,and the cost distance and cost path from the ecological source location to oth-er points were generated through ArcGIS Pro to obtain the minimum cost path based on the ecological re-sistance surface between the ecological source locations.Finally,10 ecological source sites,9 important ecological strategic nodes and 45 potential wildlife corridor were obtained,and the"source—corridor"ecological security pattern of Mojiang County was established.
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