基于层次分析法和变异系数法的黄冈市地质环境承载力研究

Study on the Bearing Capacity of Geological Environment in Huanggang City Based on Analytic Hierarchy Process and Variation Coefficient Method

对湖北省黄冈市地质环境承载力进行评价,选取地质环境、生态环境、社会经济三个方面共15个评价指标构建地质环境承载力评价体系,采取层次分析法和变异系数法判定各评价指标权重,利用GIS技术的栅格统计功能结合两种方法得到权重,并进行地质环境承载力的综合评价,分级得到高、较高、中等、较低、低的黄冈市地质环境承载力分布图,得出以下结论,地质环境承载力指数在黄冈市内分布较为均匀,整体水平较高,其中该市西北部的承载力水平较东南部高一些;主城区和矿山开发区域承载力水平较低,农业用地区域地质环境承载力较好。

This paper evaluates the geological environment carrying capacity of Huanggang City,Hubei Province,and selects 15 evaluation indexes of geological environment,ecological environment and social economy to construct a geological environment carrying capacity evaluation system,and adopts the analytic hierarchy process and the coefficient of variation method to determine weight of each evaluation index,and uses the grid statistical function of GIS technology to combine the weights obtained by the two methods to comprehensively evaluate the geological environment carrying capacity,and grades the high,higher,medium,lower and low geological environment carrying capacity of Huanggang City.The distribution map has the following conclusions:the geological environment carrying capacity index is more evenly distributed in Huanggang City,and the overall level is higher.The carrying capacity of the northwestern part of the city is higher than that of the southeast.The carrying capacity of urban area and mine development area is lower,and the geological environment carrying capacity of agricultural land is better.