重庆市不同经济区土地利用变化及其驱动力差异性分析

Different Analysis on Land Use Change and Its Driving Forces in Different Economic Regions of Chongqing

根据1985～2000年土地利用统计、社会经济资料,从土地利用数量变化、土地利用程度变化以及土地利用景观结构变化三个方面,对重庆市经济较发达的北碚区、欠发达的万州区和经济落后的酉阳县3个不同经济区域的土地利用进行了分析.结果表明,15年问不同经济区的各类土地利用变化的速度(率)、变化程度、变化方向存在着较大的差异.经济较发达、人均GDP高、人口密度较大的北碚区比经济欠发达的万州区和经济落后的酉阳县土地利用变化速度快,利用程度广,土地破碎化程度深,受人类干扰强度大;人口增长、工业化和城镇化进程、第三产业的发展、经济管理机制以及社会行为因素是不同经济区土地利用变化的主要驱动力,不同经济区驱力因子的差异性,导致了不同经济区土地利用变化的差异性.

Based on land use statistic datum and social-economic materials between 1985 and 2000, this paper analyzes land use conditions, including land use quantity change, land use degree change and landscape structure change, in three different economic regions of Chongqing, which are developed Beibei, less developed Wanzhou and developing Youyang. It is revealed that there are great difference in the rate, degree and direction of land use change in these regions over 15 years. Beibei, which is more developed and higher in per capita GDP and population density than Wanzhou and Youyang, is rapid in land use rate, comprehensive in land use degree, deep in land fragmentation, and disturbed by people to much extent. Main driving forces in these regions in land use change is population growth, industrialization and urbanization, development of the third industry, mechanism of economic management, social conduct is. It is different driving forces that lead to different land use change in these economic regions.