武汉市城市蔓延的空间特征与管治  

Exploring the Spatial Expression and Governance Policies of Urban Sprawl in Wuhan

作　　者：刘和涛 田玲玲[1,2] 田野[1,2] 罗静[1,2] 朱丽霞[1,3] 

机构地区：[1]华中师范大学地理过程分析与模拟湖北省重点实验室,中国湖北武汉430079 [2]华中师范大学城市与环境科学学院,中国湖北武汉430079 [3]华中师范大学武汉城市圈研究院,中国湖北武汉430079

出　　处：《经济地理》2015年第4期47-53,共7页Economic Geography

基　　金：国家自然科学基金面上项目(41371183);教育部人文社会科学规划基金项目(12YJAZH222)

摘　　要：新型城镇化背景下,研究城市蔓延问题对科学认识与引导城市发展至关重要。利用RS和GIS技术,从蔓延指数、紧凑度、蛙跳指数、分形维度、SBC指数、几何重心、雷达图等方面分析1990—2010年间武汉市建成区时空演变特征,同时借助于人口密度梯度和船头波方法分析武汉市城市建成区与人口蔓延的空间协调性。研究发现:武汉市存在严重的城市蔓延,在蔓延形态上表现为土地利用破碎度整体较高且呈现先上升后下降的趋势,蔓延方向上以西南方为主。与此同时武汉市人口增长仍然集中在主城区而非城市边缘地区,人口增长与建成区增长在空间上互相分离。在此基础上分析其原因并提出相应的管治措施。In the context of new-type urbanization, studying urban sprawl is of paramount importance to cognize and guide urban development properly. In the assistant of RS and GIS, we conduct analysis on characteristics of spatialtemporal evolution in Wuhan built-up areas during 1990 to 2010 from various aspects such as sprawl index, compactness,leap-frog index, fractal dimension, SBC index, geometric gravity center and radar graph. Besides, we also analyze spatial coordination of sprawling between urban built- up areas and population in Wuhan on the basis of population density gradient and perimetropolitan bow wave approach. Based on our research, we find that there exists obvious urban sprawl in Wuhan. In terms of form, the fragmentation of land use as a whole is relatively high and demonstrates a tendency of rise first and then fall; in direction, it is mainly featured by southwestward. Meanwhile, the population growth of Wuhan,agglomerated at main city rather than the fringe, is mutually spatial separated from the growth of built-up areas. On the basis of these findings, we try to find out reasons and put forth corresponding governance measures.

关 键 词：城市蔓延 空间 密度梯度 船头波 武汉 

分 类 号：F291[经济管理—国民经济]