基于夜间灯光数据的武汉市建设用地扩张规律研究  

Study on Wuhan Construction Land Expansion Using Night-time Light Data

作　　者：樊勇[1,2] 何宗宜[2] 张梦琪[2] 高军波[1] 

机构地区：[1]信阳师范学院城市与环境科学学院,河南信阳464000 [2]武汉大学资源与环境科学学院,湖北武汉430079

出　　处：《信阳师范学院学报（自然科学版）》2016年第4期546-550,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(41401171;41201387);教育部人文社会科学研究项目(14YJCZH028);河南省社科规划项目(2014BLS006)

摘　　要：选取1997年到2012年间的6期DMSP/OLS夜间灯光数据,采用基于统计数据的二分比较法,对武汉市建成区进行提取.利用建设用地扩张幅度、建设用地增长类型、城市扩张速度、城市扩展方向、城市外围轮廓的紧凑度等指标分析了武汉建设用地扩张的规律和特点.结果表明:武汉市建成区总体扩张幅度为152.2%,增长速度经历了"慢-快-慢"的交替,城市分布中心主要向东南移动,建成区的紧凑度先减小后增大.此外,通过相关性分析证明经济发展、人口和城市化之间存在强烈正相关.Night-time light data from 1997 to 2012and two points method based on statistical data were used to extract the build-up areas of the city Wuhan.Indexes including the urban land expansion,the construction land growth type,the speed of urban land expansion,the urban expansion direction and the compactness of the city boundary were used to analysis the rules of construction land expansion of Wuhan.Research shows that：the overall expansion rate of construction land is 152.2%;the expansion experiences the speed of ＂slow-fast-slow＂;the distribution of the city center moves to the Southeast;the compactness of the built-up area decreases first and then increases.There is a strong positive correlation between the development level,the agricultural population and the city spatial expansion.

关 键 词：夜间灯光数据 建设用地扩张 时空特征 武汉市 

分 类 号：K901.8[历史地理—人文地理学]