The impact of different ecological source identification methods on ecological network construction

doi:10.13474/j.cnki.11-2246.2025.1027

Abstract

Abstract: Currently, there are various methods for identifying ecological sources in ecological network construction research.In-depth research on different ecological sources identification methods is of great significance for constructing comparable ecological network results, as well as understanding their impact and applicability.This study takes the Weihe River basin as an example, utilizing four ecological sources identification methods—remote sensing ecological index, ecosystem services, morphological spatial pattern analysis and habitat quality—along with their various combination approaches (totaling 15 methods)to extract ecological sources.The rank sum ratio method is employed to evaluate the ecological networks constructed using different ecological source identification methods.The results indicate that when constructing ecological networks in the Weihe River basin using different ecological sources identification methods:①The method based on habitat quality identifies the largest number of ecological sources, while the method combining all four methods identifies the largest ecological sources area;②The method based on ecosystem services+habitat quality identifies the largest number of ecological corridors, while the method based on habitat quality generates the longest total length of ecological corridors;③The ecological network constructed using the ecosystem services+habitat quality method performs the best.This study provides a methodological foundation for constructing a unified and comparable ecological network.

Key words: ecological source, remote sensing ecological index, ecosystem services, habitat quality, Weihe River basin

CLC Number:

P208

ZHANG Xinjie, YANG Yongchong, WANG Tao, ZHANG Yiying, DU Yibo. The impact of different ecological source identification methods on ecological network construction[J]. Bulletin of Surveying and Mapping, 2025, 0(10): 163-168.

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