气候变化领域集成服务门户(CCPortal): Rapid expansion of lakes in the endorheic basin on the Qinghai-Tibet Plateau since 2000 and its potential drivers

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DOI	10.1016/j.catena.2020.104942
	Rapid expansion of lakes in the endorheic basin on the Qinghai-Tibet Plateau since 2000 and its potential drivers
	Liu, Wenhui; Xie, Changwei; Zhao, Lin; Li, Ren; Liu, Guangyue; Wang, Wu; Liu, Hairui; Wu, Tonghua; Yang, Guiqian; Zhang, Yuxin; Zhao, Shichu
通讯作者	Xie, CW (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0341-8162
EISSN	1872-6887
卷号	197
英文摘要	The QTP (Qinghai-Tibet Plateau) holds the greatest concentration of high-elevation inland lakes in the world, and most of these lakes are located in the QTP endorheic basin. Accelerated lake expansion in the endorheic basin since 2000 has been confirmed by many studies, but there is disagreement as to which components of the water balance explain most of the lake expansion. In this paper, based on Landsat images, meteorological data, glacier data and permafrost monitoring data, we analyzed the spatial-temporal changes in lake area and further explored the driving factors behind rapid lake expansion in different zones in the endorheic basin. The results suggested that the spatial pattern of trends in lake area in the endorheic basin from 2000 to 2017 showed a southwest-northeast transition from contracting to slightly expanding to rapidly expanding. More importantly, the dramatic lake expansion observed in most regions was statistically significant (0.01 similar to 26.29 km(2)/yr). Although retreating glaciers may have contributed to lake growth, this can not fully explain the recent lake expansion. We find that increasing precipitation was the primary driver behind lake expansion, and that permafrost degradation accelerated lake expansion. Lakes on the northern slope of the Gangdise Mountains, fed by the most rapidly retreating glaciers, were relatively stable or even contracted. In contrast, most of the nonglacier-fed lakes in the Hoh Xil region and the central endorheic basin nevertheless experienced significant expansion and slight expansion, respectively, which were mainly attributed to the greatest increase in AP (annual precipitation). Remarkable lake expansion was found in the continuous permafrost zone. The increasing ALT (active layer thickness) and soil temperature of permafrost resulted in an increase in meltwater from ground ice, the partial release of soil moisture and an amount of unfrozen water content, which has contributed to supply lakes and accelerated lake expansion.
关键词	CHINA TEMPERATURE DYNAMICS CLIMATE REGION
英文关键词	Lake area; Precipitation; Permafrost meltwater; The endorheic basin; Qinghai-Tibet Plateau
语种	英语
WOS研究方向	Geology ; Agriculture ; Water Resources
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS记录号	WOS:000597208600002
来源期刊	CATENA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254069
作者单位	[Liu, Wenhui; Zhao, Shichu] Qinghai Univ, Dept Geol Engn, Xining 810016, Qinghai, Peoples R China; [Xie, Changwei; Zhao, Lin; Li, Ren; Liu, Guangyue; Wang, Wu; Wu, Tonghua; Yang, Guiqian; Zhang, Yuxin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Cryosphere Res Stn Qinghai Tibet Plateau, Lanzhou 730000, Peoples R China; [Liu, Hairui] Qinghai Univ, Coll Ecoenvironm Engn, Xining 810016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wenhui,Xie, Changwei,Zhao, Lin,et al. Rapid expansion of lakes in the endorheic basin on the Qinghai-Tibet Plateau since 2000 and its potential drivers[J]. 中国科学院西北生态环境资源研究院,2021,197.
APA	Liu, Wenhui.,Xie, Changwei.,Zhao, Lin.,Li, Ren.,Liu, Guangyue.,...&Zhao, Shichu.(2021).Rapid expansion of lakes in the endorheic basin on the Qinghai-Tibet Plateau since 2000 and its potential drivers.CATENA,197.
MLA	Liu, Wenhui,et al."Rapid expansion of lakes in the endorheic basin on the Qinghai-Tibet Plateau since 2000 and its potential drivers".CATENA 197(2021).