基于DMSP-OLS数据的城市发展空间特征研究  

Research on Spatial Characteristics of Urban Development Based on DMSP-OLS Data

作　　者：吴健生[1,2] 赫胜彬[1,3] 彭建[2] 黄秀兰[1] 张理卿[1] 

机构地区：[1]北京大学城市规划与设计学院,广东深圳518055 [2]北京大学城市与环境学院,北京100871 [3]北京大学政府管理学院,北京100871

出　　处：《地理与地理信息科学》2014年第2期20-25,共6页Geography and Geo-Information Science

基　　金：国家自然科学基金项目(41271101)

摘　　要：在明确城市内部存在空间差异的前提下,综合考虑城市物质空间和社会经济空间,以1992-2010年郑州市辖区为研究对象,利用DMSP-OLS夜间灯光数据进行了建成区的提取及其扩展强度与方向特征的分析、城市重心位置的识别及其转移规律的测算、城市内部发展差异与相对发展率的研究。结果发现,近20年来郑州市建成区面积不断增大,且扩展速度也逐渐增大;城市重心在逐渐东移,且转移的速度略有增加;各辖区的发展水平逐渐提高,辖区之间的差异逐渐减小。同时分析了DMSP-OLS数据应用于建成区提取、城市重心识别方面的优势,并对该数据在城市发展领域的应用前景进行了探讨。In this paper,we have fully recognized the spatial difference of different parts in urban area,and synthetically taken physical space and socio-economic space in account.Then,Zhengzhou city during 1992-2010 is selected as the case.Based on DMSP-OLS nighttime lights data,a series of researches are conducted,which included built-up area extraction and analysis of expansion intensity and direction features,position identification of urban barycenter and the rules of its migration,development difference in urban area and relative development rate.The results showed that,the built-up area and the expansion velocity of Zhengzhou kept increasing in the past nearly twenty years.The urban barycenter gradually moved eastward and the migration velocity increased slightly.The development of municipal districts kept gradually increasing and the difference between them decreased gradually.Meanwhile,the advantages in built-up area extraction and urban barycenter identification were analyzed based on DMSP-OLS data,and the application prospect of the data for the research on urban development was discussed.

关 键 词：DMSP-OLS 城市发展 空间特征 郑州市 

分 类 号：F291[经济管理—国民经济] P208[天文地球—地图制图学与地理信息工程]