A comparative study of spatiotemporal patterns of urban expansion in six major cities of the Yangtze River Delta from 1980 to 2015

作     者：Chenyu Fang Shuqing Zhao 

作者机构：College of Urban and Environmental Sciencesand Key Laboratory for Earth Surface Processes of the Ministry of EducationPeking UniversityBeiingChina 

出 版 物：《Ecosystem Health and Sustainability》 (生态系统健康与可持续性（英文）)

年 卷 期：2018年第4卷第4期

页      面：1-21页

核心收录：

学科分类：0710[理学-生物学] 12[管理学] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0713[理学-生态学] 

基　　金：This study was supported by the National Natural Science Foundation of China Grants 41771093 41571079 and 41590843 

主　　题：Urban growth type landscape metrics remote sensing buffer analysis directional variability urban agglomeration 

摘      要：Introduction:China has been experiencing dramatic urbanization in parallel with its eco-nomic boom over the past three to four *** Yangtze River Delta(YRD),as the most important engine in the Chinese economy,has pioneered in the rapid urbanization road of China since the late *** quantifed and compared the spatiotemporal patterns of urban expansion in six major cities in the YRD urban agglomeration between 1980 and ***:We found that Sha nghai,Nanjing,Hangzhou,Wuxi,Suzhou and Ningbo expanded by an annual rate of 5.4%,5.9%,9.6%,7.4%,6.3%and 8.1%from 1980 to 2015,suggesting larger cities generally possess lower growth *** patterns of urban expansion are defined by multiple forces including physical conditions and urban planning and *** urbanization processes in Shanghai,Nanjing and Hangzhou gen-erally conformed with the difusion-coales cence theory as the number of patches(NP)and patch density(PD)of urbanized land peaked and the proportion of leapfrogging urban growth type began to decrease around 2005,which separating their urbanization processes into difusion phase before and coalescence phase *** contrast,Suzhou,Wuxi and Ningbo is either in the diffusion or in the transition phase from diffusion to coalescence,not showing temporal dynamics of diffusion-coalescence phase across the study period,which might be related to the fact that the urban areas in these three cities were more dispersive in space than that of other ***:These spatially explicit findings are the fundamental cornerstone to understand the characteristics,drivers and consequences of urban expansion in the urban agglomera-tions,and then detect the feasibility of general urbanization theories and further advance in-depth theoretical understanding to support a sustainable urban future.