基于最优赋权方法的水土资源承载力评价研究

Study on Assessment of Carrying Capacity of Water and Land Resource Based on Optimal Weights

水土资源承载力能反映一个地区水土资源对人口、经济和生态的承载能力,其对区域的可持续发展具有重要意义。采用层次分析法、熵值法、变权分析法、博弈组合权重法和投影寻踪法获得延安水土资源承载力评价方案,然后对不同的评价结果进行了统计学分析,比较不同方法的均值、标准差、半极差、峰度系数,确定了层次分析结合变权的方法为最优的评价方法。

The carrying capacity of water and land resource reflected the regional carrying capacity to people, economy and ecology, which was important for sustainable development of the region. Analytic hierarchy pro- cess, entropy method, variable weight analysis, combining weights method and projection pursuit method were adopted to obtain water and land carrying capacity of Yan＇ an city. Various assessment results were statistically an- alyzed by comparing mean, standard deviation, half poor, kurtosis coefficient. The results showed that analytic hi- erarchy process combined with variable weight was the best method of evaluation methods.