Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.15666/aeer/1504_14891510 |
STABLE ISOTOPES OF HYDROGEN AND OXYGEN IN RUNOFF WATERS IN NORTHWESTERN SICHUAN OF SOUTHWESTERN CHINA | |
Shi, Z.1; Pan, P.1; Wang, X.1; Jin, L.2; Liu, M.1; Li, A.1; Xu, J.1 | |
通讯作者 | Pan, P. |
来源期刊 | APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH |
ISSN | 1589-1623 |
EISSN | 1785-0037 |
出版年 | 2017 |
卷号 | 15期号:4页码:1489-1510 |
英文摘要 | In studying the hydro-ecological conditions in northwestern Sichuan of southwestern China, an area at the edge of the Qinghai-Tibet Plateau, stream waters were extensively sampled and analyzed for the stable hydrogen and oxygen isotope ratios (delta H-2 and delta O-18) which are often excellent indicators for a water body genesis and evolvement. The heavy isotopes of hydrogen and oxygen were found to be, in general, gradually depleted from east to west in the region; the phenomenon is attributed mainly to continentality based on the assumption that the isotopic signatures in the precipitations were preserved in the stream waters. The delta H-2 and delta O-18 data from the Yangtze River basin were found to fall well on the global meteoric water line (GMWL), indicative of the fact that the runoff waters in this basin were primarily of meteoric origin with a regional weak evaporation prevailing during our sampling time. However, the isotopic data from a relatively small part of the area in the north belonging to the Yellow River basin are characterized by the appreciably flatter slope of the local water isotope line and lower d-excess values, suggesting that the steam waters had undergone significant evaporation due to kinetic fractionations of isotopes in a more arid climate. The stable isotope data were also applied in calculating water mixing for some selected rivers. This study represents a snapshot study of the area’s hydro-ecology; more systematic studies are required in better understanding the seasonal hydrological variations. |
英文关键词 | meteoric water hydro-ecology delta H-2 and delta O-18 three-river headwaters (TRH) southwestern China |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000419994800099 |
WOS关键词 | GROUNDWATER RECHARGE ; PRECIPITATION ; DELTA-O-18 ; DELTA-H-2 |
WOS类目 | Ecology ; Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197389 |
作者单位 | 1.Chengdu Univ Technol, Dept Geochem, Chengdu 610059, Sichuan, Peoples R China; 2.Sichuan Inst Geol Survey, Chengdu 610081, Sichuan, Peoples R China |
推荐引用方式 GB/T 7714 | Shi, Z.,Pan, P.,Wang, X.,et al. STABLE ISOTOPES OF HYDROGEN AND OXYGEN IN RUNOFF WATERS IN NORTHWESTERN SICHUAN OF SOUTHWESTERN CHINA[J],2017,15(4):1489-1510. |
APA | Shi, Z..,Pan, P..,Wang, X..,Jin, L..,Liu, M..,...&Xu, J..(2017).STABLE ISOTOPES OF HYDROGEN AND OXYGEN IN RUNOFF WATERS IN NORTHWESTERN SICHUAN OF SOUTHWESTERN CHINA.APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH,15(4),1489-1510. |
MLA | Shi, Z.,et al."STABLE ISOTOPES OF HYDROGEN AND OXYGEN IN RUNOFF WATERS IN NORTHWESTERN SICHUAN OF SOUTHWESTERN CHINA".APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 15.4(2017):1489-1510. |
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