干旱区生态环境知识资源中心(Arid): Spatiotemporal variations in surface water and its significance to desertification in China from 2000 to 2019

Arid

DOI	10.1016/j.catena.2022.106182
	Spatiotemporal variations in surface water and its significance to desertification in China from 2000 to 2019
	Wang, Xunming; Xiao, Feiyan; Geng, Xin; Hu, Shi; Wang, Zhaosheng
通讯作者	Xiao, FY
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2022
卷号	213
英文摘要	Dynamics in surface water area (SWA) and its impacts on desertification are poorly understood in the desertification-prone region (DPR) of China. We defined 2440 sub-watersheds at the fifth-order level in China's DPR, and investigated the spatiotemporal variations in SWA and their substantial driving factors (such as temperature, precipitation, evaporation, and irrigation activity). The results showed that the average annual maximum SWA was 7165 km(2) in DPR from 2000 to 2019, of which 84% was the seasonal SWA. The seasonal and permanent SWA increased by 188 km(2) yr(-1) and 46 km(2) yr(-1), respectively. The SWA in non-DPR was the dominant driving factor for SWA dynamics in most basins except for HunlunBuir, Otindag and Ordos, where the irrigation activity showed significant contributions to SWA variations. Climate had a relatively low contribution to SWA variations in DPR. The role of SWA variations on desertification processes in DPR of China showed significant spatiotemporal differences from 2000 to 2019. The increased SWA promoted reversal of desertification in watersheds along the Tarim River, northwestern Junggar, eastern Ordos, and parts of Otindag, however, it did not help in northwestern Qinghai. Our findings provide a scientific insight into the characteristics of surface water resources and the relationship between SWA dynamics and desertification in the DPR of China.
英文关键词	Surface water area Desertification-prone region of China Desertification Watershed Contribution
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000790438200002
WOS关键词	INNER-MONGOLIA ; RIVER-BASIN ; LAKE ; REGRESSION ; VEGETATION ; DYNAMICS ; CLIMATE ; GROUNDWATER ; IRRIGATION ; MANAGEMENT
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392091
推荐引用方式 GB/T 7714	Wang, Xunming,Xiao, Feiyan,Geng, Xin,et al. Spatiotemporal variations in surface water and its significance to desertification in China from 2000 to 2019[J],2022,213.
APA	Wang, Xunming,Xiao, Feiyan,Geng, Xin,Hu, Shi,&Wang, Zhaosheng.(2022).Spatiotemporal variations in surface water and its significance to desertification in China from 2000 to 2019.CATENA,213.
MLA	Wang, Xunming,et al."Spatiotemporal variations in surface water and its significance to desertification in China from 2000 to 2019".CATENA 213(2022).