摘要
应用ArcGIS将研究区域不同时期的土地类型图进行叠加,并将得到的土地覆被变化图与地形图进行叠加;运用SPSS软件对建设用地变化影响因素进行相关分析。研究结果表明:①1990年代以来,珠海市建设用地面积呈总量上升趋势,在三个研究时段内经历了"快速变化—缓慢变化—快速变化"的过程,耕地是新增建设用地的主要来源;②建设用地空间分布格局发生变化,重心由香洲区逐渐向斗门区和金湾区倾斜。研究结论:本区域建设用地变化与地形因素关系密切,在地势低平、坡度较小的平原区变化较剧烈,经济发展和人口增长因素是建设用地变化的最直接驱动力,同时还受政策因素的导向作用。
ArcGIS was used to overlay the land use maps of the study area at different time periods and topographical maps. SPSS software was applied to carry out correlation analysis of the influence factors of the construction land change in this paper the past 16 years. The results showed that： ①the area of construction land had been increasing annually and underwent a process of rapid change - slow change - rapid change since the 1990s in Zhuhai. At the same time, the change of construction land use was mainly transformed from cultivated land; ② the spatial distribution of construction land had been changed during the three study periods and its gravity gradually was transferred from Xiangzhou district to Doumen district and Jinwan district. It is concluded the construction land had a close relation with the topographical factors and the change of its area got less and less obvious along with the rise of altitude and slope. Development in population and economic and science were shown to be the two dominating driving forces in socio-economic factors. Simultaneously, the government policies played an important guidance role.
出处
《经济地理》
CSSCI
北大核心
2010年第2期226-232,共7页
Economic Geography
基金
国家自然科学基金项目(编号:40771003)
教育部科学技术重点项目(编号:108171)
国家科技支撑计划项目(编号:2006BAJ05A10)联合资助
关键词
建设用地
时空特征
驱动力
主成分分析
珠海市
construction land
spatiao-temporal characteristics
driving force
principle component analyses
Zhuhai city
