摘要
利用多期遥感影像数据源,提取灵武市建成区边界,在分析建成区扩展强度指数、紧凑度指数、分形维数、重心迁移距离等量化指标的基础上,对城市经济指标、产业结构和政策进行分析,探讨城市扩张的驱动力。结果表明,2000—2015年灵武市建成区具有明确的主体形态,且形态总体较简单,城市形态随着时间的推移不断扩展,并趋于规整和稳定;城市重心总体向西南方向迁移,2005—2010年城区面积增长最快;城市扩展方向受自然地理条件的控制,资源条件和政策支持对城市扩展的节奏和速度具有重要影响。
Based on the analysis of quantitative indexes of expansion strength,compactness index,fractal index and center of gravity migration distance,the economic indicators,industrial structure and corresponding policy were studied,and further the driving force of urban expansion were discussed using multi remote sensing images.The results show that from 2000 to 2015,the urban area of Lingwu City has a clear main form and a relatively simple pattern,which has continued to expand and becomes regular and stable with time.The center of gravity of Lingwu City generally migrates to the Southwest.The urban area grows fastest between 2005 and 2010.The direction of urban expansion is controlled by natural geographical conditions,resource conditions but policy support has an important influence on the speed of Lingwu City’s expansion.
作者
孙玉芳
薛忠歧
金晓媚
李英
张晓东
SUN Yufang;XUE Zhongqi;JIN Xiaomei;LI Ying;ZHANG Xiaodong(School of Water Resources and Environment,China University of Geosciences(Beijing),Beijing 100083,China;Ningxia Institute of Hydrogeology and Environment,Yinchuan 750026,China;Geological Bureau of Ningxia,Yinchuan 750021,China;Geological Survey Institute of Ningxia,Yinchuan 750021,China)
出处
《宁夏工程技术》
CAS
2019年第3期244-249,共6页
Ningxia Engineering Technology
基金
宁夏自然科学基金资助项目(2019AAC03312)
宁夏财政项目“沿黄生态经济带地下水资源开发利用与生态环境保护效应调查评价”
关键词
遥感影像
灵武市
城市扩张
驱动力
remote sensing image
Lingwu
urban expansion
driving forces
