ZHOU Qi-gang,CHEN Dan,CHEN Qian.Research on the Transfer of Land Use Gravity Centers from 1985 to 2010 in Chongqing Mountainous Metropolitan Area[J].Research of Soil and Water Conservation,2013,20(04):189-193.
重庆山地都市区1985-2010年土地利用重心迁移研究
- Title:
- Research on the Transfer of Land Use Gravity Centers from 1985 to 2010 in Chongqing Mountainous Metropolitan Area
- Keywords:
- land use; centers transfer; metropolitan area; Chongqing
- 分类号:
- F301.24
- 摘要:
- 土地是人类不可或缺的重要资源，研究土地利用重心，能揭示人类利用或改造土地在空间上的轨迹，有助于全面分析土地利用变化的内在机理。以重庆山地都市区为例，对25 a来各类土地利用垂直重心、坡度重心、平面空间重心及其迁移速率进行了系统分析，并全面阐述了土地利用重心的迁移过程。研究结果表明：重庆都市区25 a间各地类重心分布空间分异特征明显，各地类垂直重心分布具有明显的垂直分异特征，不同地类的坡度重心范围有明显的差异，各地类平面重心分布和迁移有明显的地域特征；各地类重心空间迁移方向和速度差异明显，水域总体相对较稳定，其重心迁移方向与速度都不大；建设用地与耕地各重心迁移趋势较为明显；草地、林地、未利用地重心迁移波动性较大。研究结果可为合理利用土地和改善生态环境提供参考。
- Abstract:
- Land is indispensable important resource for human beings. Research for the transfer of land use gravity centers can reveal the tendencies of land use and reform. It helps to analyze the internal mechanism of land use change in detail. Chongqing Mountainous Metropolitan Area was taken as an example. The gravity center and rate data, including vertical, slope and plane space, were analyzed from 1995 to 2010 in study area. The results indicated that the land use gravity centers had obvious characteristics of spatial distribution. The vertical center, slope center and plane space center of different land utilization types had various spatial features. The different land use types had obvious differences in transferring direction and speed. The water area was relatively stable. The change of the centers of construction land and cultivated land were obvious. The centers of grassland, woodland and unutilized land had significant volatility. The results provide reference for the rational use of land and the improvement of ecological environment.
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备注/Memo
收稿日期:2012-10-13;改回日期:2012-11-14。
基金项目:国家自然科学基金（41101503）；国家社科基金重大项目（11&ZD161）
作者简介:周启刚(1976-),男,重庆铜梁人,博士,副教授,主要研究方向:3S理论与应用和土地资源管理。E-mail:cd1105@163.com