DOI: 10.1016/j.gloplacha.2016.10.003
论文题名: Contributions of local terrestrial evaporation and transpiration to precipitation using δ18O and D-excess as a proxy in Shiyang inland river basin in China
作者: Zongxing L. ; Qi F. ; Wang Q.J. ; Yanlong K. ; Aifang C. ; Song Y. ; Yongge L. ; Jianguo L. ; Xiaoyan G.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2016
卷: 146 起始页码: 140
结束页码: 151
语种: 英语
英文关键词: D-excess
; Recycling moisture
; Shiyang river basin
; Transpiration
Scopus关键词: Advection
; Evaporation
; Moisture
; Recycling
; Rivers
; Soil moisture
; Surface waters
; Watersheds
; End member mixing
; Gansu province
; Gordon model
; Inland river basin
; Isotopic composition
; Mean annual precipitation
; Northwestern China
; Shiyang river basins
; Transpiration
英文摘要: Moisture recycling by terrestrial evaporation and transpiration has recently been confirmed as an important source of precipitation, but little is known of this contribution in inland river basins of China. This study determines the fractions contributed by terrestrial evaporation and transpiration to precipitation in the Shiyang river basin, located in Gansu province of northwestern China. The basin has an area of 4.16 × 104 km2 and mean annual precipitation of 300 mm/yr. Hundreds of samples of precipitation, surface water, plant stem water and soil water were collected and analyzed for their isotopic compositions. The Craig-Gordon model and a three-end-member mixing model were used to partition precipitation into water sourced from evaporation, transpiration and advection. On average, evaporation, transpiration and advection were responsible for 9%, 14% and 77%, respectively, of precipitation, and the contribution from terrestrial evaporation and transpiration also increased with elavation; they also varied with season, being highest in August. The significant contribution from transpiration highlights the importance of vegetation conservation in this ecologically fragile basin. © 2016 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84991665853&doi=10.1016%2fj.gloplacha.2016.10.003&partnerID=40&md5=62e64742b04e359d911646785f1baaf2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11612
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: Key Laboratory of Ecohydrology of Inland River Basin/Gansu Hydrology and Water Resources Engineering Research Center, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Recommended Citation:
Zongxing L.,Qi F.,Wang Q.J.,et al. Contributions of local terrestrial evaporation and transpiration to precipitation using δ18O and D-excess as a proxy in Shiyang inland river basin in China[J]. Global and Planetary Change,2016-01-01,146.