气候变化领域集成服务门户(CCPortal): Evapotranspiration and Its Partitioning in Alpine Meadow of Three-River Source Region on the Qinghai-Tibetan Plateau

CCPortal

DOI	10.3390/w13152061
	Evapotranspiration and Its Partitioning in Alpine Meadow of Three-River Source Region on the Qinghai-Tibetan Plateau
	Zhang, Lifeng; Chen, Zhiguang; Zhang, Xiang; Zhao, Liang; Li, Qi; Chen, Dongdong; Tang, Yanhong; Gu, Song
通讯作者	Gu, S (通讯作者)，NanKai Univ, Coll Life Sci, 94 Weijin Rd, Tianjin 300071, Peoples R China.
发表日期	2021
EISSN	2073-4441
卷号	13 期号:15
英文摘要	The Qinghai-Tibetan Plateau (QTP) is generally considered to be the water source region for its surrounding lowlands. However, there have only been a few studies that have focused on quantifying alpine meadow evapotranspiration (ET) and its partitioning, which are important components of water balance. This paper used the Shuttleworth-Wallace (S-W) model to quantify soil evaporation (E) and plant transpiration (T) in a degraded alpine meadow (34 degrees 24 ' N, 100 degrees 24 ' E, 3963 m a.s.l) located at the QTP from September 2006 to December 2008. The results showed that the annual ET estimated by the S-W model (ETSW) was 511.5 mm (2007) and 499.8 mm (2008), while E estimated by the model (E-SW) was 306.0 mm and 281.7 mm for 2007 and 2008, respectively, which was 49% and 29% higher than plant transpiration (T-SW). Model analysis showed that ET, E, and T were mainly dominated by net radiation (R-n), while leaf area index (LAI) and soil water content at a 5 cm depth (SWC5cm) were the most important factors influencing ET partitioning. The study results suggest that meadow degradation may increase water loss through increasing E, and reduce the water conservation capability of the alpine meadow ecosystem.
关键词	SHUTTLEWORTH-WALLACE MODEL CROP COEFFICIENT METHOD HEADWATERS REGION ENERGY-BALANCE 2-SOURCE MODEL LAND WATER TRANSPIRATION EXCHANGE DEGRADATION
英文关键词	evapotranspiration partitioning; soil evaporation; leaf area index; Shuttleworth-Wallace model; eddy covariance
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000682252500001
来源期刊	WATER
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/255012
作者单位	[Zhang, Lifeng; Chen, Zhiguang; Gu, Song] NanKai Univ, Coll Life Sci, 94 Weijin Rd, Tianjin 300071, Peoples R China; [Zhang, Xiang] Cent South Univ Forestry & Technol, Inst Life Sci & Technol, 498 Shaoshannan Rd, Changsha 410004, Peoples R China; [Zhao, Liang; Li, Qi; Chen, Dongdong] Chinese Acad Sci, Northwest Inst Plateau Biol, 23 Xinning Rd, Xining 810008, Peoples R China; [Tang, Yanhong] Peking Univ, Coll Urban & Environm Sci, 5 Yiheyuan Rd, Beijing 100781, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Lifeng,Chen, Zhiguang,Zhang, Xiang,et al. Evapotranspiration and Its Partitioning in Alpine Meadow of Three-River Source Region on the Qinghai-Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2021,13(15).
APA	Zhang, Lifeng.,Chen, Zhiguang.,Zhang, Xiang.,Zhao, Liang.,Li, Qi.,...&Gu, Song.(2021).Evapotranspiration and Its Partitioning in Alpine Meadow of Three-River Source Region on the Qinghai-Tibetan Plateau.WATER,13(15).
MLA	Zhang, Lifeng,et al."Evapotranspiration and Its Partitioning in Alpine Meadow of Three-River Source Region on the Qinghai-Tibetan Plateau".WATER 13.15(2021).