A method characterizing urban expansion based on land cover map at 30 m resolution

作     者：YU Xi ZHANG BingQi LI Qiang CHEN Jin YU Xi;ZHANG BingQi;LI Qiang;CHEN Jin

作者机构：College of Resources Science and Technology Beijing Normal University State Key Laboratory of Earth Surface Process and Resources Ecology Beijing Normal University 

出 版 物：《Science China Earth Sciences》 (中国科学（地球科学英文版）)

年 卷 期：2016年第59卷第9期

页      面：1738-1744页

核心收录：

学科分类：12[管理学] 081802[工学-地球探测与信息技术] 08[工学] 1204[管理学-公共管理] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081303[工学-城市规划与设计(含：风景园林规划与设计）] 0818[工学-地质资源与地质工程] 081602[工学-摄影测量与遥感] 0816[工学-测绘科学与技术] 0813[工学-建筑学] 0833[工学-城乡规划学] 083302[工学-城乡规划与设计] 

基　　金：supported by the National High-Tech Research Program of China (Grant No. 2013AA122802) 

主　　题：Urbanization Urban expansion Remote sensing Lognormal distribution Characteristic metrics Global land cover map 

摘      要：Based on the global land cover data at 30 m resolution(Globe Land30) in the year 2000 and 2010, the urban expansion process of 320 cities in China was analyzed using lognormal regression, and the expansion model were established. Three metrics were presented for the models, including the peak position, the full width at half maximum, and the skewness. It was found that the three metrics could reveal different patterns of the urban expansion process of cities with different sizes. Specifically, cities with larger size tend to expand outward strongly, and their expansion intensity and influence are likely to be higher. Moreover, most cities expansion occurs around the urban core with spatially limited influence. In addition, it was also found that the city s expansion intensity is related to the city size. These results showed that the lognormal regression model could describe the distribution of urban expansion with effectiveness and robustness.