基于AHP和GIS技术的未利用地宜耕适宜性评价研究——以郧县为例

Arable Exploitation Suitability Evaluation for Unused Land Based on AHP and GIS:Taking Yunxian County for Example

以郧县为例,研究了未利用地宜耕适宜性评价方法。综合考虑自然、资源、经济、社会等因素,构建了未利用地宜耕适宜性评价指标体系。运用层次分析法(AHP)确定了评价指标权重;对各单项指标进行归一化处理,利用GIS空间分析功能,对郧县土地整理中未利用地宜耕适宜性进行了评价。依据评价结果,采用自然间距法,将全县未利用地分为最适宜、中度适宜、勉强适宜和不适宜4个宜耕等级,并用聚类分析方法,对未利用地宜耕开发潜力进行分区。该方法综合考虑自然、资源、经济、社会等因素,使评价结果更加科学,可以为未利用地宜耕适宜性开发提供参考。

Arable exploitation suitability evaluation for unused land was researched based on AHP and GIS with Yunxian County for example.The arable evaluation index system for unused land was established under the consideration of nature,resource and social factors.The weight of the evaluation index was determined using Analytic Hierarchy Process ;Each single index and arable evaluated unused land suitability in Yunxian County land consolidation were normalized based on the GIS spatial analysis function. According to the evaluation result, the suitability of unused land was classified into four grades ： optimum,less optimum, barely optimum and unfit, using natural distance method, the unused land development potential was classified using cluster analysis method.This method take nature, resource, economy and society into consideration and the arable evaluation result is more scientific and can provide reference for unused land arable suitability development.