气候变化领域集成服务门户(CCPortal): Spatiotemporal Changes in Water Storage and Its Driving Factors in the Three-River Headwaters Region, Qinghai-Tibet Plateau

CCPortal

DOI	10.3390/land12101887
	Spatiotemporal Changes in Water Storage and Its Driving Factors in the Three-River Headwaters Region, Qinghai-Tibet Plateau
	Zhao, Linlin; Chen, Rensheng; Yang, Yong; Liu, Guohua; Wang, Xiqiang
发表日期	2023
EISSN	2073-445X
卷号	12 期号:10
英文摘要	Water storage (WS) is a crucial terrestrial ecosystems service function. In cold alpine regions (CAR), the cryosphere elements are important solid water resources, but the existing methods for quantitatively assessing WS usually ignore cryosphere elements. In this study, a revised Seasonal Water Yield model (SWY) in the Integrated Valuation of Ecosystem Services and Trade-offs (InVEST), which considers the effects of frozen ground (FG) and snow cover (SC) on WS, was employed to estimate the spatiotemporal distribution and changes in WS in the Three-Rivers Headwaters region (TRHR) from 1981 to 2020. Sensitivity analyses were conducted to understand the overall effects of multiple factors on WS, as well as the dominant driving factors of WS change at the grid scale in the TRHR. The results show that (1) the WS in the TRHR generally increased from 1981 to 2020 (0.56 mm/year), but the spatial distribution of WS change varied greatly, with a significant increasing trend in the northwest part and a significant decreasing trend in the southeast part. (2) In the last 40 years, increased precipitation (Pre) positively affected WS, while increased potential evapotranspiration (ET0) reduced it. Increased permeability caused by degradation of frozen ground increased WS, while snow cover and LULC changes reduced it. (3) In the TRHR, Pre primarily affected the WS with the largest area ratio (32.62%), followed by land use/land cover (LULC) (19.69%) and ET0 (18.49%), with FG being fourth (17.05%) and SC being the least (6.64%). (4) The highly important and extremely important zones generally showed a decreasing trend in WS and should be treated as key and priority conservation regions. It is expected that this research could provide a scientific reference for water management in the TRHR.
关键词	water storage spatiotemporal change driving factors cryosphere Three-River Headwaters Region
英文关键词	CLIMATE; SNOWMELT; SCALE
WOS研究方向	Environmental Studies
WOS记录号	WOS:001089939500001
来源期刊	LAND
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283488
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Hengyang Normal University
推荐引用方式 GB/T 7714	Zhao, Linlin,Chen, Rensheng,Yang, Yong,et al. Spatiotemporal Changes in Water Storage and Its Driving Factors in the Three-River Headwaters Region, Qinghai-Tibet Plateau[J],2023,12(10).
APA	Zhao, Linlin,Chen, Rensheng,Yang, Yong,Liu, Guohua,&Wang, Xiqiang.(2023).Spatiotemporal Changes in Water Storage and Its Driving Factors in the Three-River Headwaters Region, Qinghai-Tibet Plateau.LAND,12(10).
MLA	Zhao, Linlin,et al."Spatiotemporal Changes in Water Storage and Its Driving Factors in the Three-River Headwaters Region, Qinghai-Tibet Plateau".LAND 12.10(2023).