基于主成分分析的广西农用地利用效率评价

Evaluation of agricultural land use efficiency in Guangxi based on the Principle Component Analysis

科学的评价农用地利用是高效利用农用地的基础。文章以广西14个市为评价单元,构建涵盖农用地综合效益、单项农用效率、农用地利用程度和农用地投入程度等4个层面18个指标的农用地利用效率评价指标体系,运用数据分析软件spss17.0对广西2009年的18个农用地利用数据进行了主成分分析,并计算各地区的综合得分,据此对广西各区农用地利用效率的区域差异进行综合分析,将广西农用地利用分为农用地利用效率较高区、农用地利用效率中等区和农用地利用效率较低区,并根据结果提出了提高农用地利用效率的建议。

Scientific evaluation agricultural land use is a foundation of efficient use of agricultural land. This article according to14 cities in Guangxi for evaluation unit, comprehensive benefit of agricultural land, Single agricultural efficiency, Agricultural land utilization degree and agricultural land into degree and so on, about 4 aspects 18 indexes of land use efficiency evaluation index system, using spss17.0 data analysis software to analysis the 18 of the 2009 years of agricultural land use data of Guangxi with principal component analysis and calculation comprehensive score of these areas, Accordingly comprehensive analysis of each area of Guangxi agricultural land use efficiency of regional differences, then dividing the efficiency in the use of agricultural land into high of agricultural land use efficiency area, medium of agricultural land use efficiency area and low of agricultural land use efficiency area, and several suggestions were proposed to improve agricultural land using efficiency according to the results.