基于GIS的内蒙古耕地集约利用空间分析

Spatial Analysis of Intensive Use of Cultivated Land in Inner Mongolia Based on GIS

为充分合理利用耕地资源,保障社会经济可持续发展,从耕地利用程度、耕地投入水平、耕地产出水平及可持续性指标方面选取16个指标构建内蒙古耕地集约利用综合评价体系。采用熵值法和综合指数法对内蒙古自治区12个盟市耕地集约利用水平进行测算,并借助arcGIS对耕地集约利用得分进行分级和空间相关分析。结果表明:耕地可持续水平和耕地投入水平对耕地集约利用影响较大;内蒙古耕地集约利用水平空间差异较大,耕地集约利用具有空间集聚性。

In order to use the cultivated land resources rationally,and guarantee social and economic sustairable development,the comprehensive evaluation system of cultivated land intensive utilization for Inner Mongolia was constructed from 16 indexes, which are cultivated land utilization degree, cultivated land input level, culti- vated land output level and sustainable index. The cultivated land intensive use level of 12 cities for the Inner Mongolia Autonomous Region was calculated based on entropy method and comprehensive index method,and with the help of ArcGIS of cultivated land intensive use score grading and spatial correlation analysis. The resuits showed that the sustainable level of cultivated land and the input level of arable land have great influence on the intensive use of cultivated land; the spatial difference of the intensive use of cultivated land in Inner Mongolia was relatively large, and the intensive utilization of cultivated land had spatial agglomeration.