城市边缘区空间破碎化的指标体系及其应用研究——以北京市海淀区上地、清河街道为例

发布时间：2018-04-01 02:17

本文选题：空间破碎化　切入点：地块规模　出处：《城市发展研究》2014年05期

【摘要】：破碎化是转型期中国大城市空间演化的重要特征,直接关系到城市的可持续发展。以空间破碎化为研究对象,以北京市海淀区上地、清河街道为例,利用GOOGLE地图(1:1500比例尺,空间分辨率0.54m)和实地调研数据,选取地块密度、地块数破碎化指数、地块面积标准变异系数、地块形状破碎化指数与通道密度等五种指标,从地块的规模、形状与通道三个方面,对研究区空间破碎化程度与及其表现和成因进行分析。结果表明,受快速城市化影响,研究区整体空间破碎化程度较高,特别表现在地块面积标准变异系数与地块形状破碎化指数较高,分别为1.574,0.313、0.177。上地街道多核跳跃式的发展模式,使其地块规模与通道破碎化特征突出;清河街道渐进式的发展模式,使其地块形状破碎化特征较为突出。
[Abstract]:Fragmentation is an important feature of the spatial evolution of large cities in China during the transition period, which is directly related to the sustainable development of cities.Taking spatial fragmentation as research object, taking Shangdi, Qinghe street in Haidian District of Beijing as an example, using 1: 1500 scale of GOOGLE map, spatial resolution of 0.54 m) and field investigation data, the density of plot and the fragmentation index of land number are selected.In this paper, the standard coefficient of variation of block area, the fragmentation index of block shape and the density of channel are analyzed from three aspects: the scale, shape and channel of the block, and the degree of spatial fragmentation and its manifestation and cause of formation in the study area are analyzed.The results show that the degree of spatial fragmentation in the study area is higher due to the rapid urbanization, especially in the higher coefficient of variation of the plot area and the fragmentation index of the block shape, which are 1.574n0.3130.177, respectively.The multi-core leaping development mode of Shangdi street makes the scale of land block and the characteristic of channel fragmentation outstanding, while the progressive development mode of Qinghe street makes the shape of land block more prominent.
【作者单位】：北京大学建筑与景观设计学院;北京大学深圳研究生院;
【基金】：“十二五”国家科技支撑计划项目(2012BAJ05B00)课题(2012BAJ05B04)
【分类号】：TU984.113

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