Extraction of basic trends of urban expansion in China over past 40 years from satellite images

	Extraction of basic trends of urban expansion in China over past 40 years from satellite images
	Wen Qingke 1; Zhang Zengxiang 1; Shi Lifeng 1; Zhao Xiaoli 1; Liu Fang 1; Xu Jinyong 1; Yi Ling 1; Liu Bin 1; Wang Xiao 1; Zuo Lijun 1
刊名	CHINESE GEOGRAPHICAL SCIENCE
	2016
卷号	26 期号:2 页码:129-142
关键词	NET PRIMARY PRODUCTIVITY DESERTIFICATION PROBLEM AFFORESTATION EFFORTS SHELTERBELT PROGRAM SEMIARID CHINA AFRICAN SAHEL SATELLITE LAND DYNAMICS RAINFALL
通讯作者	Shi, LF (reprint author), Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China. ; Shi, LF (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
英文摘要	If urban sprawl is to be avoided in China in the next ten years, it is not only crucial to understand the overall history, current status, and future trends of urban expansion there, but also these differences, and this is presently lacking. In this study, remotely sensed images with approximately 30 m spatial resolution were used to quantitatively assess the spatial and temporal patterns of urban expansion of 60 Chinese cities (1973-2013). Urban-expansion-process curves of the cities studied were drawn using annual expansion area as an indicator. Curve similarity analysis generated four basic process modes of urban expansion in China. These included cities that: 1) peaked around 2004 and then decelerated; 2) peaked around 2010 and then decelerated; 3) showed sustained acceleration, and 4) showed continued deceleration. Four basic process modes represented cities under different levels of development stage. Geographic location was found to be the most related characteristic to urban expansion process. Regional development policies at the national level in each region also showed highly temporal consistency with fluctuation characteristics of urban expansion process. Urban characteristic such as population size and administrative level were not found to be significantly related to urban expansion-process modes. Understanding the basic process-mode categories well is extremely important for future regional-balance planning and development of macroeconomic policies.
学科主题	Environmental Sciences & Ecology
类目[WOS]	Environmental Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000372238400001
内容类型	期刊论文
源URL	[http://ir.radi.ac.cn/handle/183411/39367]
专题	遥感与数字地球研究所_SCI/EI期刊论文_期刊论文
作者单位	1.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wen Qingke,Zhang Zengxiang,Shi Lifeng,et al. Extraction of basic trends of urban expansion in China over past 40 years from satellite images[J]. CHINESE GEOGRAPHICAL SCIENCE,2016,26(2):129-142.
APA	Wen Qingke.,Zhang Zengxiang.,Shi Lifeng.,Zhao Xiaoli.,Liu Fang.,...&Li Minmin.(2016).Extraction of basic trends of urban expansion in China over past 40 years from satellite images.CHINESE GEOGRAPHICAL SCIENCE,26(2),129-142.
MLA	Wen Qingke,et al."Extraction of basic trends of urban expansion in China over past 40 years from satellite images".CHINESE GEOGRAPHICAL SCIENCE 26.2(2016):129-142.