干旱区生态环境知识资源中心(Arid): Urban expansion and intra-urban land evolution as well as their natural environmental constraints in arid/semiarid regions of China from 2000-2018

Arid

DOI	10.1007/s11442-023-2136-4
	Urban expansion and intra-urban land evolution as well as their natural environmental constraints in arid/semiarid regions of China from 2000-2018
	Pan Tao; Kuang Wenhui; Shao Hua; Zhang Chi; Wang Xiaoyu; Wang Xinqing
通讯作者	Shao, H
来源期刊	JOURNAL OF GEOGRAPHICAL SCIENCES
ISSN	1009-637X
EISSN	1861-9568
出版年	2023
卷号	33 期号:7 页码:1419-1441
英文摘要	Rapid urbanization has occurred in arid/semiarid China, threatening the sustainability of fragile dryland ecosystems; however, our knowledge of natural environmental constraints on multiscale urban lands in this region is still lacking. To solve this issue, this study retrieved 15-m multiscale urban lands. Results indicated that urban area increased by 68% during 2000-2018, and one-third of the increase was contributed by only three large cities. The coverage of impervious surface area (ISA) and vegetated area (VA) increased by 16.6% and 1.38%, respectively. Such land-cover change may be helpful in suppressing wind erosion and sand storms. We also found that the newly urban lands had relatively lower ISA and higher VA than the old urban lands, indicating an improved human settlement environment. Strong environmental constraints on urban expansion were identified, with cities in oasis urban environments (OUEs) that had water supply expanding 150% faster than cities in desert urban environments (DUEs). Urban development was also constrained by terrain, with 73% of the ISA expansion occurring in relatively flat areas. Overall, the aggregated pattern of urbanization and the increase in ISA and VA in the newly urbanized lands have improved water-use efficiency and ecological services and benefited desert ecosystem protection in arid/semiarid China.
英文关键词	urbanization natural environmental constraints pixel and subpixel land change arid and semiarid regions of China
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001076750300004
WOS关键词	SPATIAL-PATTERN ; SEMIARID AREAS ; URBANIZATION ; CLASSIFICATION ; WATER ; DUST
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397342
推荐引用方式 GB/T 7714	Pan Tao,Kuang Wenhui,Shao Hua,et al. Urban expansion and intra-urban land evolution as well as their natural environmental constraints in arid/semiarid regions of China from 2000-2018[J],2023,33(7):1419-1441.
APA	Pan Tao,Kuang Wenhui,Shao Hua,Zhang Chi,Wang Xiaoyu,&Wang Xinqing.(2023).Urban expansion and intra-urban land evolution as well as their natural environmental constraints in arid/semiarid regions of China from 2000-2018.JOURNAL OF GEOGRAPHICAL SCIENCES,33(7),1419-1441.
MLA	Pan Tao,et al."Urban expansion and intra-urban land evolution as well as their natural environmental constraints in arid/semiarid regions of China from 2000-2018".JOURNAL OF GEOGRAPHICAL SCIENCES 33.7(2023):1419-1441.