陕北黄土高原土地利用变化研究——以榆林市清涧县为例

Study on land-using change in loess plateau of northern Shaanxi——a case study of Yulin Qingjian County

对土地利用变化研究是研究生态环境变化的重要基础,也是人类生活生产中科学决策的重要依据。利用清涧县2010~2013年土地利用数据进行土地利用变化分析,基于ArcGIS10.0软件生成不同土地利用类型动态度图,对土地利用变化基本特征进行分析;构建清涧县土地利用变化的驱动因子指标体系,利用SPSS软件进行主成分分析,表明:清涧县土地利用变化受经济发展、人口增长和产业结构调整等因素影响显著;研究时段内土地利用变化速度较大,且具有较为显著的区域差异,主要表现在城镇村、工矿用地、交通设施用地增速较快,水域、林地减速较快。

The study of land use change is an important basis for the study of ecological environment changes.It is also an important basis for scientific decision-making in human life and production.By using survey of land use chang to analysis,use ArcGIS10.0 to generate different types of land use dynamic degree of land use change based on the graph,the basic features are analyzed;construct QingJian County land use change driving factors index system,using SPSS software for the principal component analysis shows that the effect of the change economic development,population growth and industrial structure adjustment and other factors of land use in QingJian County is significant;the study period of land use change speed is larger,and regional differences are significant:mainly in land,urban village and industrial land transport facilities rapid growth,water and forest rapid deceleration.