气候变化领域集成服务门户(CCPortal): Using stable isotopes to illuminate thermokarst lake hydrology in permafrost regions on the Qinghai-Tibet plateau, China

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DOI	10.1002/ppp.1996
	Using stable isotopes to illuminate thermokarst lake hydrology in permafrost regions on the Qinghai-Tibet plateau, China
	Yang, Yuzhong; Wu, Qingbai; Hou, Yandong; Zhang, Peng; Yun, Hanbo; Jin, Huijun; Xu, Xiaoming; Jiang, Guanli
发表日期	2019
ISSN	1045-6740
EISSN	1099-1530
起始页码	58
结束页码	71
卷号	30 期号:1
英文摘要	Thermokarst lakes are widespread and developing on the Qinghai-Tibet Plateau (QTP), and they have modified hydrological processes and water balance in the region. Despite increasing attention, our understanding of the hydrological behaviors of thermokarst lakes under permafrost degradation remains limited on the QTP. In this study, water stable isotope tracers were used to characterize the spatial and seasonal hydrological changes of thermokarst lakes on the central QTP. Significant seasonal variations and factors influencing the isotopic hydrology of lakes were revealed through the ice-free season. Substantial differences in lake-specific input water isotope compositions (delta(I)) among the lakes indicate two lake-recharge regimes: rain-dominated, and snowmelt/permafrost thaw-dominated. We suggest that precipitation and active-layer hydrology controlled these hydrological changes in the ice-free season. However, under ice cover, melting of the surrounding permafrost (including ground ice) dominated the hydrology of thermokarst lakes. Importantly, a conceptual model delineates the hydrological evolution of thermokarst lakes under permafrost degradation. This study serves as a baseline for future investigations of hydrological processes and water balance relating to thawing permafrost on the QTP.
英文关键词	active-layer water; ground ice; permafrost thaw; Qinghai-Tibet plateau; stable isotopic hydrology; thermokarst lakes
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geology
WOS关键词	WATER-BALANCE ; BEILUHE BASIN ; ICE ; EVAPORATION ; THICKNESS ; TRACERS ; RUNOFF ; GROWTH ; PONDS ; THAW
WOS记录号	WOS:000456319500005
来源期刊	PERMAFROST AND PERIGLACIAL PROCESSES
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/240242
作者单位	[Yang, Yuzhong; Wu, Qingbai; Zhang, Peng; Yun, Hanbo; Jin, Huijun; Xu, Xiaoming; Jiang, Guanli] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Wu, Qingbai; Yun, Hanbo] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Beiluhe Observat Stn Frozen Soil Environm & Engn, Lanzhou, Peoples R China; [Hou, Yandong] Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yuzhong,Wu, Qingbai,Hou, Yandong,et al. Using stable isotopes to illuminate thermokarst lake hydrology in permafrost regions on the Qinghai-Tibet plateau, China[J]. 中国科学院西北生态环境资源研究院,2019,30(1).
APA	Yang, Yuzhong.,Wu, Qingbai.,Hou, Yandong.,Zhang, Peng.,Yun, Hanbo.,...&Jiang, Guanli.(2019).Using stable isotopes to illuminate thermokarst lake hydrology in permafrost regions on the Qinghai-Tibet plateau, China.PERMAFROST AND PERIGLACIAL PROCESSES,30(1).
MLA	Yang, Yuzhong,et al."Using stable isotopes to illuminate thermokarst lake hydrology in permafrost regions on the Qinghai-Tibet plateau, China".PERMAFROST AND PERIGLACIAL PROCESSES 30.1(2019).