基于ESDA的武汉市不透水面时空变化分析  

Spatial-temporal changes of Impervious Surface Based on ESDA in Wuhan City

作　　者：王林涛[1] 罗怡丹[2] 

机构地区：[1]武汉大学资源与环境科学学院,湖北武汉430079 [2]中国地质大学公共管理学院,湖北武汉430074

出　　处：《国土与自然资源研究》2017年第2期65-71,共7页Territory & Natural Resources Study

摘　　要：本文以武汉市主城区为研究区,对其2005-2013年不透水面变化趋势进行分析。采用精度较高的分层分类法,选取武汉市2005、2009、2013年遥感影像图,提取武汉市主城区的不透水面。利用ESDA方法,借助GIS软件与Geoda空间统计分析软件,对武汉市不透水面变化的总体与局部空间差异进行分析。结果显示:(1)从行政区划和环线结构两方面看,2005-2013年,武汉市主城区不透水面面积总体呈上升趋势,但在2009-2013年间,其增长主要集中在人口密度小、城市不透水面比率较低的二环外及汉阳区、洪山区等区域。(2)武汉市主城区内不透水面的增长不存在空间聚集性,汉阳区在三个时间段内均表现出了与周围区域的差异性,但并不显著,属于"高—低"类型区(H-L),武昌区则在阶段II和阶段III内表现出了不显著差异性,属于"低—高"类型区(L-H);其余行政区则显示无空间自相关性。The paper aims to analyze the changing trend of the impervious surface area in the urban area of Wuhan city from 2005 to 2013. Remote sensing images in 2005, 2009 and 2013 were selected to obtain impervious surfaces of the urban area of Wuhan by applying the hierarchical classification method. Then the general changes and local differences were analyzed by using the ESDA method with the help of ArcGIS and Geoda. The conclusions are as follows： （1） The impervious surface area in urban area of Wuhan was on an upward trend from 2005 to 2013 overall from the perspective of administrative divisions, as well as in the circle lines＇s term. While from 2009 to 2013, the increase of impervious surfaces mainly located in the outside areas of Wuhan＇s second ring road, Hanyang District and Hongshan District. （2）The average value impervious surface during period of annual increasing rates of 1 is higher than that of period 2 and the increasing impervious surface is mainly located in the lower urbanized areas like Hanyang District. Hongshan District and in the outside areas of Wuhan＇s second ring road. In addition, there shows no space aggregation of impervious surfacegrowth in the central district of Wuhan. Han yang District belonged to ＂high-low＂ type area （HL） and showed differences with its surrounding areas, but not significantly during the three periods; While Wuchang District belonged to ＂low-high＂ type area （LH） and showed no significant differences during period 2 and period 3. The rest regions showed no spatial autocorrelation.

关 键 词：不透水面 ESDA 时空变化 武汉 

分 类 号：TU984.16[建筑科学—城市规划与设计]