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DOI	10.1016/j.ejrh.2021.100936
	Precipitation and evapotranspiration partitioning on the Three-River Source Region: A comparison between water balance and energy balance models
	Zhang, Lifeng; Schlaepfer, Daniel R.; Chen, Zhiguang; Zhao, Liang; Li, Qi; Gu, Song; Lauenroth, William K.
通讯作者	Gu, S (通讯作者)，NanKai Univ, Coll Life Sci, Tianjin 300071, Peoples R China. ; Lauenroth, WK (通讯作者)，Yale Univ, Yale Sch Environm, New Haven, CT 06511 USA.
发表日期	2021
EISSN	2214-5818
卷号	38
英文摘要	Study Region: Three-River Source Region, Qinghai-Tibetan Plateau, China. Study Focus: Evapotranspiration (ET) is often the largest loss of water from grassland ecosystems and consists of two constituents: evaporation (E) and transpiration (T), but it is very difficult to separate E and T. In this study, we used an energy balance model (Shuttleworth-Wallace) and a water balance model (SOILWAT2) to estimate the water budget variables over a 10-year period (2007-2016) in a degraded alpine meadow in the Three-River Source Region on the QinghaiTibetan Plateau. New Hydrological Insights for the Region: The models produced contrasting patterns of precipitation and ET partitioning at the study site. Precipitation partitioning by SW2 resulted in substantial fluxes of both ET and deep drainage, while ET estimated by SW consumed almost all precipitation. ET was partitioned by the models into different annual E and T fluxes as well as different monthly and annual T/ET. Our study site located in an important water source region suggests that its water balance would contribute to drainage which aligns better with SW2 results. The surprising discrepancies between the models in the partitioning of precipitation into T, E, and deep drainage, however, is limiting our understanding and management of the degraded site and will require future work to reconcile.
关键词	QINGHAI-TIBETAN PLATEAU SHUTTLEWORTH-WALLACE MODEL CROP COEFFICIENT METHOD STABLE-ISOTOPE 2-SOURCE MODEL SAP FLOW VINEYARD SOIL GRASSLAND IMPACTS
英文关键词	The SOILWAT2 model; The Shuttleworth-Wallace model; Water balance; Energy balance; Degraded meadow
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000707479300004
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254997
作者单位	[Zhang, Lifeng; Chen, Zhiguang; Gu, Song] NanKai Univ, Coll Life Sci, Tianjin 300071, Peoples R China; [Schlaepfer, Daniel R.; Lauenroth, William K.] Yale Univ, Yale Sch Environm, New Haven, CT 06511 USA; [Schlaepfer, Daniel R.] No Arizona Univ, Ctr Adaptable Western Landscapes, Flagstaff, AZ 86011 USA; [Zhao, Liang; Li, Qi] Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Qinghai, Peoples R China; [Lauenroth, William K.] Univ Wyoming, Dept Bot, Laramie, WY 82071 USA
推荐引用方式 GB/T 7714	Zhang, Lifeng,Schlaepfer, Daniel R.,Chen, Zhiguang,et al. Precipitation and evapotranspiration partitioning on the Three-River Source Region: A comparison between water balance and energy balance models[J]. 中国科学院西北生态环境资源研究院,2021,38.
APA	Zhang, Lifeng.,Schlaepfer, Daniel R..,Chen, Zhiguang.,Zhao, Liang.,Li, Qi.,...&Lauenroth, William K..(2021).Precipitation and evapotranspiration partitioning on the Three-River Source Region: A comparison between water balance and energy balance models.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,38.
MLA	Zhang, Lifeng,et al."Precipitation and evapotranspiration partitioning on the Three-River Source Region: A comparison between water balance and energy balance models".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 38(2021).