干旱区生态环境知识资源中心(Arid): Influence of below-cloud secondary evaporation on stable isotope composition in precipitation and its relationship with meteorological factors in Shiyang River Basin, Northwest China

Arid

DOI	10.1007/s12665-021-09504-x
	Influence of below-cloud secondary evaporation on stable isotope composition in precipitation and its relationship with meteorological factors in Shiyang River Basin, Northwest China
	Xiong, Hui; Jia, Wenxiong; Zhu, Guofeng; Ma, Xinggang; Xu, Xiuting; Yuan, Ruifeng; Zhang, Zhiyuan; Shi, Yang; Yang, Le
通讯作者	Jia, WX (corresponding author), Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China.
来源期刊	ENVIRONMENTAL EARTH SCIENCES
ISSN	1866-6280
EISSN	1866-6299
出版年	2021
卷号	80 期号:7
英文摘要	In arid regions, the process of precipitation from the cloud base to the ground is often affected by the below-cloud secondary evaporation, which changes the ratios of hydrogen and oxygen stable isotopes in falling raindrops. Based on stable isotopes of 670 precipitation samples and meteorological records at 11 stations in the Shiyang River Basin, and combined with the improved Stewart model, this study discussed the impact of different meteorological factors on below-cloud secondary evaporation. The result showed that the Local Meteoric Water Line (LMWL) of the Shiyang River Basin is delta D=7.70 delta O-18+8.90 (r(2)=0.98, p<0.01, n=670). The secondary evaporation is stronger in spring and summer and weaker in autumn and winter, and it is stronger in the mid-downstream than that in the upstream. When temperature ranges from 10 degrees C to 20 degrees C, precipitation is less than 10 mm, and relative humidity is lower than 30%, the phenomenon of isotope dynamic fractionation caused by the secondary evaporation is more obvious. As temperature increases, relative humidity, precipitation amount, or raindrop diameter decreases, the linear relationship between the evaporation remaining ratios of raindrops (f) and the difference of deuterium excess from cloud base to ground (Delta d) weakens gradually. Delta d has a stronger response to the changes in relative humidity than that in temperature and precipitation intensity, and the impact of raindrop diameters more than 1.2 mm on Delta d is very limited.
英文关键词	Shiyang river basin Below-cloud secondary evaporation Isotope in precipitation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000631503500002
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/2XILL650/350106
作者单位	[Xiong, Hui; Jia, Wenxiong; Zhu, Guofeng; Xu, Xiuting; Yuan, Ruifeng; Zhang, Zhiyuan; Shi, Yang; Yang, Le] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Zhu, Guofeng; Ma, Xinggang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryosphere Sci, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Xiong, Hui,Jia, Wenxiong,Zhu, Guofeng,et al. Influence of below-cloud secondary evaporation on stable isotope composition in precipitation and its relationship with meteorological factors in Shiyang River Basin, Northwest China[J],2021,80(7).
APA	Xiong, Hui.,Jia, Wenxiong.,Zhu, Guofeng.,Ma, Xinggang.,Xu, Xiuting.,...&Yang, Le.(2021).Influence of below-cloud secondary evaporation on stable isotope composition in precipitation and its relationship with meteorological factors in Shiyang River Basin, Northwest China.ENVIRONMENTAL EARTH SCIENCES,80(7).
MLA	Xiong, Hui,et al."Influence of below-cloud secondary evaporation on stable isotope composition in precipitation and its relationship with meteorological factors in Shiyang River Basin, Northwest China".ENVIRONMENTAL EARTH SCIENCES 80.7(2021).