中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Variation characteristics of stable isotopes in precipitation and the environmental factors that influence them in the Shiyang River Basin of China

文献类型:期刊论文

作者Jia, Wenxiong1; Xu, Xiuting1; Yuan, Ruifeng1; Ma, Xinggang1; Zhu, Guofeng1; Li, Zongxing2
刊名ENVIRONMENTAL EARTH SCIENCES
出版日期2019-05-01
卷号78期号:10页码:14
关键词Stable isotope Precipitation Environmental effect Shiyang River Basin
ISSN号1866-6280
DOI10.1007/s12665-019-8307-z
通讯作者Jia, Wenxiong(wxjiaxy@163.com)
英文摘要Stable isotopes in precipitation are used to understand the hydrologic cycle as well as changes in climate. Based on 274 precipitation samples collected from 6 stations in the Shiyang River Basin from July 2013 to June 2014, the variation characteristics of stable isotopes and their response to the environment contribute to the understanding of the hydrologic cycle in an arid region of Northwest China. Stable isotopes in the Shiyang River Basin vary significantly with the seasons. Compared to the winter months, the slope and intercept of the Local Meteoric Water Line (LMWL) are lower and the values of O-18 and D are higher in the summer. The variations of O-18 and D in precipitation are significantly affected by temperature, elevation, and sub-cloud evaporation, but are not affected by precipitation on an annual scale. The effects of temperature are more pronounced in the summer than in the winter. Isotope variations are weakly affected by precipitation amounts during the summer, especially in July, from both greater precipitation and continuous precipitation. The concentrations of O-18 and D decrease with height at rates of -0.3 parts per thousand/100m and -2 parts per thousand/100m, respectively. In the summer months, the values of O-18 and D at the surface are greater than those at cloud base, indicating that the variations of stable isotopes are influenced by sub-cloud evaporation. In general, higher values of (18) and (2) are related to higher temperatures, less precipitation, and lower relative humidity, with the reverse also being true. The variations of stable isotopes and the environmental factors that influence them differ with meteorological conditions and geography.
收录类别SCI
WOS关键词SUB-CLOUD EVAPORATION ; DEUTERIUM EXCESS ; MOISTURE ; O-18 ; DELTA-O-18 ; MONSOON ; VAPOR ; SOUTH
WOS研究方向Environmental Sciences & Ecology ; Geology ; Water Resources
WOS类目Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
语种英语
WOS记录号WOS:000467552000001
出版者SPRINGER
URI标识http://www.irgrid.ac.cn/handle/1471x/2555451
专题寒区旱区环境与工程研究所
通讯作者Jia, Wenxiong
作者单位1.Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Gansu, Peoples R China
2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Gansu Hydrol & Water Resources Engn Res Ctr, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式
GB/T 7714
Jia, Wenxiong,Xu, Xiuting,Yuan, Ruifeng,et al. Variation characteristics of stable isotopes in precipitation and the environmental factors that influence them in the Shiyang River Basin of China[J]. ENVIRONMENTAL EARTH SCIENCES,2019,78(10):14.
APA Jia, Wenxiong,Xu, Xiuting,Yuan, Ruifeng,Ma, Xinggang,Zhu, Guofeng,&Li, Zongxing.(2019).Variation characteristics of stable isotopes in precipitation and the environmental factors that influence them in the Shiyang River Basin of China.ENVIRONMENTAL EARTH SCIENCES,78(10),14.
MLA Jia, Wenxiong,et al."Variation characteristics of stable isotopes in precipitation and the environmental factors that influence them in the Shiyang River Basin of China".ENVIRONMENTAL EARTH SCIENCES 78.10(2019):14.

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来源:寒区旱区环境与工程研究所

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