宁夏土地利用变化及驱动力分析  

Analysis of Land Use Change and Its Driving Factors in Ningxia Hui Autonomous Region

作　　者：段翰晨[1,2] 颜长珍[1] 宋翔[1,2] 李森[1,2] 文星[1,2] 

机构地区：[1]中国科学院寒区旱区环境与工程研究所,甘肃兰州730000 [2]中国科学院研究生院,北京100049

出　　处：《安徽农业科学》2009年第35期17637-17640,17667,共5页Journal of Anhui Agricultural Sciences

基　　金：中国科学院知识创新项目(KZCX1-YW-08-02-04)

摘　　要：通过遥感、GIS和数理统计相结合的方法,对宁夏地区2000～2008年土地利用变化的数量、变化幅度、年变化率和动态度等进行了定量分析和研究,并进一步分析了该区土地利用变化的驱动力。结果表明,耕地面积减少836.88 km2,未利用地面积减少23.03 km2,其他土地利用类型均有不同程度的增加,其中草地的增加幅度最大,为382.58 km2,其次是林地和建设用地。驱动力分析表明,人口因素、经济因素、政策因素在短时间尺度上对土地利用变化的影响较为显著。Based on the methods of RS, GIS and statistics, the land use change amount, change extent, annual change rate and dynamic degree and so on, and the driving forces of land use changes in Ningxia from 2000 to 2008 were quantitatively analyzed and studied. The results showed the cultivated land decreased 836.88 km^2 , the unused land decreased 23.03 km^2. The other land use types increased in different degree, in which the largest increasing extent was grassland （ the area of 382.58 km^2 ） , followed by the forest land and construction land. The analysis of driving forces showed that the demographic factors, economic factors and policy factors had more significant effects on the land-use change in a short time scale.

关 键 词：土地利用变化 驱动力 宁夏地区 遥感与GIS 

分 类 号：F301.24[经济管理—产业经济]