基于遥感监测的北京市城市空间扩展格局与形态特征分析  

Analysis of Urban Expansion Pattern and Spatial Morphologic Characteristics of Beijing Based on Remote Sensing

作　　者：杜军[1] 宁晓刚[2] 刘纪平[2] 邱士可[1] 王浩[2] 王超[1] DU Jun;NING Xiaogang;LIU Jiping;QIU Shike;WANG Hao;WANG Chao(Institute of Geographical Sciences, Henan Academy of Sciences,Zhengzhou 450052, China;Chinese Academy of Surveying & Mapping, Beijing 100049, China)

机构地区：[1]河南省科学院地理研究所,郑州450052 [2]中国测绘科学研究院,北京100049

出　　处：《地域研究与开发》2019年第2期73-78,共6页Areal Research and Development

基　　金：国家重点研发计划项目(2016YFE0205300);国家自然科学基金项目(41401513);河南省科技攻关项目(182102310740)

摘　　要：基于1990年、2002年、2013年的遥感影像、基础地理信息数据,开展北京城区边界信息提取,从城市扩展过程、空间形态、扩展类型、空间结构演变4个方面对北京市城区空间演进过程进行分析。结果表明:1990—2013年北京市辖区城区面积扩展了559.20 km^2,2013年的城区面积是1990年的2.29倍,城区面积扩展明显;北京市城市空间扩展具有显著的阶段性,1990—2002年、2002—2013年两个时段的城市扩展面积及速率均呈显著增加趋势,前期以中心城区外围的"片状"扩展为主,后期以内部填充的集约式扩展为主。This paper extracted urban boundary information of Beijing based on the remote sensing images in 1990, 2002 and 2013 and basic geographic information data, and the process of urban spatial evolution in Beijing is analyzed from four aspects: urban expansion process, spatial form, expansion type and spatial structure evolution. The results show that the expansion of urban area is obvious, the urban area of Beijing has expanded 559.20 km^2 from 1990 to 2013, and the urban area in 2013 is 2.29 times that of 1990. The urban expansion area and expansion rate were significantly increased in two periods during 1990-2013 (1990-2002, 2002-2013). The expansion of urban space shows a distinct stage, the early period mainly focused on the “sheet like” expansion of the periphery of the central city, the later period mainly focused on intensive and intentional expansion.

关 键 词：城市空间扩展 空间形态 分维数 紧凑度 凸壳 北京市 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]