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DOI | 10.1016/j.scitotenv.2020.141559 |
Environmental effect and spatiotemporal pattern of stable isotopes in precipitation on the transition zone between the Tibetan Plateau and arid region | |
Gui Juan; Li, Zongxing; Feng Qi![]() | |
发表日期 | 2020 |
ISSN | 0048-9697 |
EISSN | 1879-1026 |
卷号 | 749 |
英文摘要 | In the transition zone between the Tibetan Plateau and the arid region of northwestern China, the spatiotemporal patterns and environmental controls of stable isotopes in precipitation remain unclear. A network of 19 sampling stations was established across the Qilian Mountains to observe stable isotopes in precipitation, and 1310 precipitation event-scale samples were collected. The local meteoric water line (LMWL) was obtained and expressed as 6D 7.996180- 1457 (R-2 0.96). The spatiotemporal patterns of the stable isotopes were mainly dominated by the co-influence of the water vapor sources and the local environment.The westerly circulation, monsoon circulation, and Arctic circulation accounted for 79%, 13%, and 8% of all precipitation events in the study region, respectively. The rainout process also caused oxygen isotope depletion for continuous precipitation events. When the temperature increased by 1 degrees C,6180 increased by 0.47%., but this increase varied with the temperature range. The effect of precipitation amount was apparent in summer and was caused by sub -cloud evaporation. In addition, 6180 decreased by 0.13%. for every 100 m increase in altitude in the Qilian Mountains. Future research should focus on quantifying the co-influence of sub-cloud evaporation, local moisture recycling, and water vapor sources on stable isotopes in precipitation. (C) 2020 Elsevier B.V. All rights reserved. |
英文关键词 | Spatiotemporal pattern; Water vapor sources; Local environment; Environmental effect; Qilian Mountains |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS关键词 | RIVER-BASIN ; ATMOSPHERIC PRECIPITATION ; DEUTERIUM EXCESS ; QILIAN MOUNTAINS ; SPATIAL-DISTRIBUTION ; TIANSHAN MOUNTAINS ; RECYCLED MOISTURE ; CLOUD EVAPORATION ; METEORIC WATER ; HEXI CORRIDOR |
WOS记录号 | WOS:000581793800073 |
来源期刊 | SCIENCE OF THE TOTAL ENVIRONMENT
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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/239335 |
作者单位 | [Gui Juan; Li, Zongxing; Feng Qi; Yuan Ruifeng; Ning Tingting; Zhang Baijuan; Xue Jian; Gao Wende; Nan Fusen; Ding Weixuan; Yang Anle; Liang Pengfei] Chinese Acad Sci, Observat & Res Stn Ecohydrol & Natl Pk Stable Iso, Key Lab Ecohydrol Inland River Basin, Gansu Qilian Mt Ecoenvironm Res Ctr,Northwest Ins, 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,Feng Qi,et al. Environmental effect and spatiotemporal pattern of stable isotopes in precipitation on the transition zone between the Tibetan Plateau and arid region[J]. 中国科学院西北生态环境资源研究院,2020,749. |
APA | Gui Juan.,Li, Zongxing.,Feng Qi.,Yuan Ruifeng.,Ning Tingting.,...&Liang Pengfei.(2020).Environmental effect and spatiotemporal pattern of stable isotopes in precipitation on the transition zone between the Tibetan Plateau and arid region.SCIENCE OF THE TOTAL ENVIRONMENT,749. |
MLA | Gui Juan,et al."Environmental effect and spatiotemporal pattern of stable isotopes in precipitation on the transition zone between the Tibetan Plateau and arid region".SCIENCE OF THE TOTAL ENVIRONMENT 749(2020). |
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