干旱区生态环境知识资源中心(Arid): Variation characteristics of stable isotopes in precipitation and the environmental factors that influence them in the Shiyang River Basin of China

Arid

DOI	10.1007/s12665-019-8307-z
	Variation characteristics of stable isotopes in precipitation and the environmental factors that influence them in the Shiyang River Basin of China
	Jia, Wenxiong 1; Xu, Xiuting 1; Yuan, Ruifeng 1; Ma, Xinggang 1; Zhu, Guofeng 1; Li, Zongxing 2
通讯作者	Jia, Wenxiong
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2019
卷号	78 期号:10
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.
英文关键词	Stable isotope Precipitation Environmental effect Shiyang River Basin
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000467552000001
WOS关键词	SUB-CLOUD EVAPORATION ; DEUTERIUM EXCESS ; TIBETAN PLATEAU ; MOISTURE ; WATER ; DELTA-O-18 ; O-18 ; QINGHAI ; MONSOON ; VAPOR
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215413
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],2019,78(10).
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).
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).