Land Ecological Sensitivity Analysis of Lingbao City Based on the Coefficient of Variation Method

doi:10.14088/j.cnki.issn0439-8114.2018.14.007

Abstract

Abstract: Five factors of Lingbao city in Henan province were selected, including the landform, the degree of susceptibility to geological disasters, land cover type, soil type and topographic gradient, and the evaluation index system of land ecological sensitivity was constructed. Objective weighting method-coefficient of variation method was used to determine the weight of each factor. Combined with ArcGIS, Weighted grading method was used to get the distribution of land sensitivity in Lingbao city. The results showed that the ecological environment of Lingbao was generally fragile, with mainly very sensitive and highly sensitive, accounting for 52.90% of the total area of the city; While insensitive and low sensitive area accounting for 23.89% of the total area of the whole city.

Key words: land ecological sensitivity, ArcGIS, coefficient of variation method, Lingbao city

CLC Number:

X826

WU Kun, PENG Hong-xia, LI Jiang-feng, CHEN Wan-xu. Land Ecological Sensitivity Analysis of Lingbao City Based on the Coefficient of Variation Method[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(14): 32-37.

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