干旱区生态环境知识资源中心(Arid): The coupled effect of soil and atmospheric constraints on the vulnerability and water use of two desert riparian ecosystems

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DOI	10.1016/j.agrformet.2021.108701
	The coupled effect of soil and atmospheric constraints on the vulnerability and water use of two desert riparian ecosystems
	Bai, Yan; Liu, Yanlan; Kueppers, Lara M.; Feng, Xue; Yu, Kailiang; Yang, Xiaofan; Li, Xiaoyan; Huang, Jianping
通讯作者	Huang, JP (corresponding author), Lanzhou Univ, Coll Atmospher Sci, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou, Peoples R China.
来源期刊	AGRICULTURAL AND FOREST METEOROLOGY
ISSN	0168-1923
EISSN	1873-2240
出版年	2021
卷号	311
英文摘要	Plant response to soil and atmospheric water stresses is the dominant control of Dryland ecosystem functions, affecting water resources, ecosystem stability and biodiversity. The link between water stresses and plant water status is regulated by plant hydraulics, of which the corresponding impact on plant water use and the susceptibility of Dryland ecosystems remains under-explored. We used a plant hydraulic model to describe hydraulic states and water flux of two species (Populus euphratica and Tamarix ramosissima) in desert riparian ecosystems. We optimized hydraulic parameters and tested the model using observed physiological states and ecosystem water flux. The optimized model was used to evaluate plant hydraulic sensitivity, tree mortality risk, and evapotranspiration under a wide range of water stress scenarios. The model captures the observed leaf water potential, sap-flow and ecosystem evapotranspiration. Our scenario analysis demonstrates that hydraulic sensitivities generally reduce as the water stresses intensify. The results highlight a strong coupled impact of the co-occurrence of soil and atmospheric water stresses on restricting ecosystem water flux and intensifying mortality risk. The assessment of multiple aspects of eco-physiological functions and the stress scenario analysis of desert riparian ecosystems will contribute to a better prediction of ecosystem functions and facilitate resource management under future climate.
英文关键词	Plant hydraulics Mortality risk Water use Evapotranspiration Water flux Water stresses
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000717360500016
WOS关键词	VAPOR-PRESSURE DEFICIT ; STOMATAL CONDUCTANCE ; SEMIARID ECOSYSTEMS ; HYDRAULIC TRAITS ; TREE MORTALITY ; PLANT ; VARIABILITY ; VEGETATION ; TRANSPORT ; RESPONSES
WOS类目	Agronomy ; Forestry ; Meteorology & Atmospheric Sciences
WOS研究方向	Agriculture ; Forestry ; Meteorology & Atmospheric Sciences
来源机构	兰州大学 ; 北京师范大学 ; University of California, Berkeley
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368106
作者单位	[Bai, Yan; Huang, Jianping] Lanzhou Univ, Coll Atmospher Sci, Collaborat Innovat Ctr Western Ecol Safety, Lanzhou, Peoples R China; [Liu, Yanlan] Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA; [Kueppers, Lara M.] Univ Calif Berkeley, Energy & Resources Grp, Berkeley, CA 94720 USA; [Feng, Xue] Univ Minnesota, Dept Civil Environm & Geoengn, Minneapolis, MN USA; [Yu, Kailiang] Princeton Univ, Princeton Environm Inst, Princeton, NJ 08544 USA; [Yang, Xiaofan; Li, Xiaoyan] Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Bai, Yan,Liu, Yanlan,Kueppers, Lara M.,et al. The coupled effect of soil and atmospheric constraints on the vulnerability and water use of two desert riparian ecosystems[J]. 兰州大学, 北京师范大学, University of California, Berkeley,2021,311.
APA	Bai, Yan.,Liu, Yanlan.,Kueppers, Lara M..,Feng, Xue.,Yu, Kailiang.,...&Huang, Jianping.(2021).The coupled effect of soil and atmospheric constraints on the vulnerability and water use of two desert riparian ecosystems.AGRICULTURAL AND FOREST METEOROLOGY,311.
MLA	Bai, Yan,et al."The coupled effect of soil and atmospheric constraints on the vulnerability and water use of two desert riparian ecosystems".AGRICULTURAL AND FOREST METEOROLOGY 311(2021).