重庆江津市土地利用变化及社会驱动力分析

Analysis of Land Use Changes and Social Driving Forces in Jiangjin,Chongqing

运用重庆江津市1990-2002年土地利用数据，分析其土地利用的动态变化及土地利用程度等变化情况．得出耕地面积变化是该区土地利用变化的核心类型。接着运用其社会经济发展状况有关数据和主成分分析法对耕地面积变化的社会驱动力作定量分析，总结出经济发展、城镇化和工业化、人口增长、农业生产效益、政治经济政策这5个因素是引起其耕地利用变化的主要社会驱动力因子。

Based on the data of land use from 1990 to 2002 in Jiangjin,Chongqing,the dynamic trend and degree of land use in the district was analyzed at first ,the conclusion indicated that cultivated land loss is the core type of land use changes in the district. Afterwards, by adopting a relevant data of social and economy development condition and principle component analytical, the social driving forces of cultivated land loss are summarized, including economy development, urbanization and industrialization,populatlon growth ,agriculture produces benefit ,political and economic policy and others.