基于RS和GIS的建设用地变化研究——以重庆市主城九区为例

Research on the Change of Construction Land Based on RS and GIS——Taking Nine Urban Districts of Chongqing as an Example

以重庆主城九区为例,利用1978、1985、1988、1993、1996、2000、2007年和2009年8个时期的遥感数据,在3S技术的支持下对研究区内1978-2009年建设用地的景观格局、重心转移、动态度进行分析。结果表明:研究区内建设用地先后经历了20世纪80年代的快速发展期,80年代后期至90年代初期的缓慢发展期,90年代后期至21世纪中后期的较快发展期和近年来的稳定减速发展期;在空间上,2009年建设用地的重心较1978年向西北移动2 259.57 m;研究成果对城市发展研究具有重要的参考价值。

By taking nine urban districts of Chongqing as an example, through using Landsat data in such eight periods as 1978,1985,1988,1993,1996,2000,2007 and 2009 and supported by 3S Technology ,this paper analyzes the studies on landscape pattern ,weight change and dynamic degree for construction land in the region from 1978 to 2009. The results show that construction land expansion in the studied area experiences rapid development period in the 1980s,slow development period in the late 1980s and the early 1990s, rapid development period from the late 1990s to the middle and late 2000s, and stable slowdown development period in recent years. In space, the weight of construction land in the studied area moves 2259.57 m more northwestward than in 1978. The research results are important reference to urban development.