中文摘要：

本文阐明了1998--2005年重庆都市区土地利用／覆盖变化（LUCC）的驱动机制，为区域生态环境建设和社会经济发展提供科学依据。利用重庆市都市区的土地利用变更数据与社会经济统计资料，采用主成分分析与逐步回归分析方法。结果表明：研究期内，重庆都市区耕地、未利用土地和水域面积减少，其他用地类型面积增加；农业发展与结构、经济发展、农业技术进步、人口、生活水平、建设性投资和粮食安全保障等社会经济因素是该区LUCC的主要驱动力；气温、降水等自然因子对区域LUCC也有一定影响，但作用相对较小。通过研究有效揭示了重庆市都市区土地利用／覆盖动态变化的内在机制。

英文摘要：

Analyzing the driving forces of land use/cover changes in typical regions is helpful to understanding the interactive mechanism between land use/cover system and physical and socio-economic factors. The paper selected the metropolitan area of Chongqing as a study area and 28 factors from 1998 to 2005 are selected to find the driving forces of the land use/cover changes in the study area. The principal component analyses （PCA） and stepwise regression are applied in the paper. The result suggests that the farmland, unused land and water area have been in the study area reduced in the study period, while other types increased ; the main driving forces of LUCC in this area are the socio-economic factors, such as agricultural development and structure, economic development, technological advances in agriculture, population, living standards, constructive investment and food security; In addition, temperature, precipitation and other natural factors also have certain, relatively smaller, impact on regional LUCC. The changes of farmland are mainly affected by living standard, the increasing of population and the need for food security. The changes of gardens are mainly effected by the increasing of population. The changes of forest are driven by the development of regional economy, the construction investments, the development and structure adjusting of agriculture. The driving forces of grassland changes are mainly the climatic factors. The changes of water are related to the construction investments and the advancement of agricultural technology. The changes of urban land have a close relation with the development of regional economy. The increasing of population has given effects on the changes of unused land.