基于GIS的内蒙古耕地集约利用时间变化研究

Study on the Temporal Change of Cultivated Land Intensive Use in Inner Mongolia Based on GIS

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测算内蒙古自治区12个盟市在2001、2005、2009和2014年的耕地集约利用水平,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:随着时间的变化,耕地可持续水平对耕地集约利用影响在逐年加强,耕地投入水平的影响在逐年减弱;通辽市、巴彦淖尔市、兴安盟、赤峰市和呼伦贝尔市耕地集约利用综合水平在逐年提高;2009年和2014年内蒙古12盟市耕地集约利用水平具有空间相关性。

The comprehensive evaluation system of cultivated land intensive utilization for Inner Mongolia is constructed from 16 indexes,which are cultivated land utilization degree,cultivated land input level,cultivated land output level and sustainable index.The cultivated land intensive use level of 12 cities in 2001,2005,2009 and 2014 for the Inner Mongolia Autonomous Region is calculated based on entropy method and comprehensive index method,and by using ArcGIS to analyse the cultivated land intensive use score grading and spatial correlation analysis.The results showed that With the change of time,the influence of the cultivated land sustainable level on land intensive use is gradually increasing year by year,the impact of cultivated land input level is weakening year by year;The cultivated land intensive use level of Tongliao City,Bayannur City,Hinggan League,Chifeng City and Hulun Buir city is increasing year by year;The cultivated land intensive utilization level of Inner Mongolia 12 Cities is spatial correlation in 2009 and 2014.