中国西部地区土地利用变化聚类分析

Cluster Analysis of Land-use Change of China' s Western Region

土地利用是自然过程与人文过程交互作用的结果,是揭示人地关系的属性、特征、机制、地域分异及其人地矛盾冲突的主题。目前我国人地关系紧张的基本格局没有改变,尤其是在广大的西部地区人地关系矛盾更为突出。本文在深入调查和了解西部12省(区、市)土地利用现状的基础上采用统计分析软件SPSS对2003-2009年的西部各省(区、市)土地利用变化数据进行聚类分析。研究结果表明:西部12个省(区、市)可分为三类,处在同一类别的地区,它们的土地利用变化存在相似性,处在不同类别地区的土地利用侧重点不同,对环境造成的影响也不相同,在土地政策调控时应当因地制宜,有针对性的解决问题。

Land-use is the results of interaction of natural process and human process,revealing the relationship among human attribute, characteristics,mechanism,regional differentiation and the theme of conflict between man and land in our country.The relationship between man and land has not changed,especially in the vast western region where contradiction is more prominent.This paper, is based on the investigation and understanding of the land-use change of China' s western 12 provinces(autonomous regions and municipalities), selects the data from the year 2003 to the year 2009,then uses the statistical analysis software SPSS for cluster analysis. The final conclusion has been reached;12 provinces(autonomous regions and municipalities) are divided into three categories,with similarities existings the same category in the area of the change of land use.They have different emphases which are in different categories in the area of land use.The effects on the environment are also not identical.We should select measures on the basis of the local conditions when dealing with the problem.