北京城市边缘区建设用地扩展分析——以大兴区为例  

ON BUILT-UP AREA EXPANSION IN THE URBAN FRINGE OF BEIJING:A CASE STUDY OF DAXING DISTRICT

作　　者：王茜[1] 林钰源[1] 宋金平[1] 丁婷红[1,2] 饶烨[1] 

机构地区：[1]北京师范大学地理学与遥感科学学院,北京100875 [2]新疆大学资源与环境学院,乌鲁木齐830046

出　　处：《北京师范大学学报（自然科学版）》2014年第1期83-88,共6页Journal of Beijing Normal University(Natural Science)

基　　金：国土资源部公益性行业科研专项经费项目(201211001)

摘　　要：城市边缘区的扩展状况密切关系着城市空间结构和形态的演变.基于1994、2000、2005、2009年4个时期TM影像资料提取出的建设用地数据,通过建设用地扩展强度指数、建设用地扩展规模系数和建设用地密度指标,利用象限缓冲区分析法将大兴区分成8个象限进行扩展分析,研究1994—2009年大兴区建设用地扩展的时空分异特征.分析表明,大兴区在15a间建设用地剧烈增加,且增加的强度越来越快;各区建设用地密度的差距越来越大,但差距并非均等变大;大兴区建设用地扩展影响因素主要是自然因素、社会经济因素、交通因素与政策因素.Expansion of urban fringe has close relationship with urban spatial structure and formation evolution. The expansion of district Daxing in quadrant buffer areas of 8 directions was analyzed based on built- up area data extracted from TM remote sensing images in 1994, 2000, 2005, 2009, in order to study temporal and spatial characteristics of built-up area expansion from 1994 to 2009, by expansion intensity index, expansion scale index and built-up area density. It was found that built-up area in Daxing increased rapidly and its intensity index was progressively higher; Gaps of built-up density in different directions become progressively larger, rather unevenly; The driving factors of built-up area expansion in district Daxing were mainly natural factors, social economic factors, transportation factors and policy factors.

关 键 词：城市边缘区 建设用地 扩展 北京大兴区 

分 类 号：TU984[建筑科学—城市规划与设计]