气候变化领域集成服务门户(CCPortal): Water resources significance of moisture recycling in the transition zone between Tibetan Plateau and arid region by stable isotope tracing

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DOI	10.1016/j.jhydrol.2021.127350
	Water resources significance of moisture recycling in the transition zone between Tibetan Plateau and arid region by stable isotope tracing
	Gui Juan; Li Zongxing; Qi, Feng; Zhang Baijuan; Xue Jian; Gao Wende; Li Yuchen; Liang Pengfei; Nan Fusen
通讯作者	Li, ZX (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Gansu Qilian Mt Ecoenvironm Res Ctr, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China.
发表日期	2022
ISSN	0022-1694
EISSN	1879-2707
卷号	605
英文摘要	Moisture recycling, an important component of regional precipitation, is a key indicator of a region's ability to renew its water resources. Quantifying moisture recycling allows for a comprehensive understanding of the spatial and temporal structure of the regional water balance. Therefore, an observation and sampling network for precipitation, soil samples, plant stems, and surface water was established in the Qilian Mountains, a transition zone between the Tibetan Plateau and an arid region. Approximately 2749 samples were collected and analyzed for their isotopic compositions. Based on the Craig-Gordon model and the three-end-member mixing model, the evaporation, transpiration, and advection contributed 8%, 14%, and 78% to precipitation, respectively, and the total contribution to local moisture recycling was equivalent to 71 mm of precipitation. The evaporation fraction tended to decrease from the central Qilian Mountains to the surrounding areas, whereas the transpiration fraction exhibited a decreasing trend from south to north in the south-central Qilian Mountains. If all of the moisture recycling precipitation is produced in the flow, the water production is approximately 13 billion m3, which is approximately 87% of the average total annual runoff from the Qilian Mountains and twice the average total annual runoff of the three major inland river basins in the Hexi corridor. Additionally, altitude, topography, vegetation conditions, and meteorological factors influence local moisture recycling. The results showed that moisture recycling precipitation in cold regions is crucial to ecological stability and water resource supply. This study demonstrates that good ecological conditions enhance moisture recycling, improve the renewal capacity of water resources, and support the stability and sustainable use of regional water resources. Therefore, ecological protection remains an important support for sustainable development in the Qilian Mountains.
关键词	DEUTERIUM EXCESS RIVER-BASIN CLOUD EVAPORATION PRECIPITATION EVAPOTRANSPIRATION OXYGEN VAPOR CRYOSPHERE RUNOFF COMPONENTS
英文关键词	Local moisture recycling; Water resources; Stable isotope tracing; Qilian Mountains
语种	英语
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000752489500003
来源期刊	JOURNAL OF HYDROLOGY
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/253701
作者单位	[Gui Juan; Li Zongxing; Qi, Feng; Zhang Baijuan; Xue Jian; Gao Wende; Li Yuchen; Liang Pengfei; Nan Fusen] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Gansu Qilian Mt Ecoenvironm Res Ctr, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China; [Gui Juan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gui Juan,Li Zongxing,Qi, Feng,et al. Water resources significance of moisture recycling in the transition zone between Tibetan Plateau and arid region by stable isotope tracing[J]. 中国科学院西北生态环境资源研究院,2022,605.
APA	Gui Juan.,Li Zongxing.,Qi, Feng.,Zhang Baijuan.,Xue Jian.,...&Nan Fusen.(2022).Water resources significance of moisture recycling in the transition zone between Tibetan Plateau and arid region by stable isotope tracing.JOURNAL OF HYDROLOGY,605.
MLA	Gui Juan,et al."Water resources significance of moisture recycling in the transition zone between Tibetan Plateau and arid region by stable isotope tracing".JOURNAL OF HYDROLOGY 605(2022).