干旱区生态环境知识资源中心(Arid): A comparative study of three stomatal conductance models for estimating evapotranspiration in a dune ecosystem in a semi-arid region

Arid

DOI	10.1016/j.scitotenv.2021.149937
	A comparative study of three stomatal conductance models for estimating evapotranspiration in a dune ecosystem in a semi-arid region
	Bao, Yongzhi; Liu, Tingxi; Duan, Limin; Tong, Xin; Ji, Honglan; Zhang, Lan; Singh, V. P.
通讯作者	Liu, TX ; Ji, HL (corresponding author), Inner Mongolia Agr Univ, Water Conservancy & Civil Engn Coll, Hohhot 010018, Peoples R China.
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	802
英文摘要	The accurate simulation of stomatal conductance is crucial for not only revealing the carbon and water cycle pro-cesses of an ecosystem, but also to improve the accuracy of simulations of evapotranspiration (ET). This study coupled three stomatal conductance models, i.e. the Stannard (ST), Jarvis-Stewart (JS), and Ball-Berry (BB) models, with the Shuttleworth-Wallace (SW) model to estimate ET for a mobile dune ecosystem in the Horqin Sandy Land, North China. These models were calibrated and validated using eddy covariance (EC) measurements taken during the growing season between 2013 and 2018. The results indicated that the SW-BB model showed better performance in comparison to the SW-JS and SW-ST models at half-hourly and daily timescales. The sto-matal conductance models incorporating soil moisture (SM) content generally showed better performance dur -ing the extreme drought period, with the rank of the three models according to performance being: SW-BB > SW-JS > SW-ST. The models showed the highest sensitivity to SM when incorporating the effect of SM on stomatal conductance, indicating that SM has an important effect on stomatal conductance and ET. The results of this study indicate that of the models assessed, the Ball-Berry stomatal conductance model coupled with the SW model is optimal for estimating ET in dune ecosystems with sparse vegetation. (c) 2021 Elsevier B.V. All rights reserved.
英文关键词	Evapotranspiration Sandy land Canopy stomatal conductance Shuttleworth-Wallace model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000701774600009
WOS关键词	ENERGY-BALANCE CLOSURE ; SHUTTLEWORTH-WALLACE ; PENMAN-MONTEITH ; DESERT REGION ; SAP FLOW ; WATER ; TRANSPIRATION ; CARBON ; LEAF ; SENSITIVITY
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364603
作者单位	[Bao, Yongzhi; Liu, Tingxi; Duan, Limin; Tong, Xin; Ji, Honglan] Inner Mongolia Agr Univ, Water Conservancy & Civil Engn Coll, Hohhot 010018, Peoples R China; [Bao, Yongzhi; Liu, Tingxi; Duan, Limin; Tong, Xin] Inner Mongolia Water Resource Protect & Utilizat, Hohhot 010018, Peoples R China; [Zhang, Lan; Singh, V. P.] Texas A&M Univ, Dept Biol & Agr Engn, College Stn, TX 77843 USA
推荐引用方式 GB/T 7714	Bao, Yongzhi,Liu, Tingxi,Duan, Limin,et al. A comparative study of three stomatal conductance models for estimating evapotranspiration in a dune ecosystem in a semi-arid region[J],2022,802.
APA	Bao, Yongzhi.,Liu, Tingxi.,Duan, Limin.,Tong, Xin.,Ji, Honglan.,...&Singh, V. P..(2022).A comparative study of three stomatal conductance models for estimating evapotranspiration in a dune ecosystem in a semi-arid region.SCIENCE OF THE TOTAL ENVIRONMENT,802.
MLA	Bao, Yongzhi,et al."A comparative study of three stomatal conductance models for estimating evapotranspiration in a dune ecosystem in a semi-arid region".SCIENCE OF THE TOTAL ENVIRONMENT 802(2022).