干旱区生态环境知识资源中心(Arid): Characteristic of Stomatal Conductance and Optimal Stomatal Behaviour in an Arid Oasis of Northwestern China

Arid

DOI	10.3390/su14020968
	Characteristic of Stomatal Conductance and Optimal Stomatal Behaviour in an Arid Oasis of Northwestern China
	Han, Tuo; Feng, Qi; Yu, Tengfei; Yang, Xiaomei; Zhang, Xiaofang; Li, Kuan
通讯作者	Feng, Q
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2022
卷号	14 期号:2
英文摘要	Stomatal conductance (g(s)), the process that governs plant carbon uptake and water loss, is fundamental to most Land Surface Models (LSMs). With global change accelerating, more attention should be paid to investigating stomatal behavior, especially in extremely arid areas. In this study, gas exchange measurements and environmental/biological variables observations during growing seasons in 2016 and 2017 were combined to investigate diurnal and seasonal characteristics of g(s) and the applicability of the optimal stomatal conductance model in a desert oasis vineyard. The results showed that the responses of g(s) to environmental factors (photosynthesis active radiation, PAR; vapor pressure deficit, VPD; and temperature, T) formed hysteresis loops in the daytime. The stomatal conductance slope, g(1), a parameter in the unified stomatal optimal model, varied in different growing seasons and correlated with the soil-to-leaf hydraulic conductance (K-L). These results indicated the potential bias when using a constant g(1) value to simulate g(s) and highlighted that the water-use strategy of oasis plants might not be consistent throughout the entire growing season. Our findings further help to achieve a better understanding of stomata behavior in responding to climate change and encourage future efforts toward a more accurate parameterization of g(s) to improve the modeling of LSMs.
英文关键词	stomatal conductance hysteresis loops seasonal variation stomatal conductance slope soil-to-leaf hydraulic conductance
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000758511900001
WOS关键词	WATER-USE EFFICIENCY ; VAPOR-PRESSURE DEFICIT ; CANOPY CONDUCTANCE ; SAP FLOW ; PHOTOSYNTHESIS ; LEAF ; ECOSYSTEM ; TRANSPIRATION ; ACCLIMATION ; ATMOSPHERE
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376695
推荐引用方式 GB/T 7714	Han, Tuo,Feng, Qi,Yu, Tengfei,et al. Characteristic of Stomatal Conductance and Optimal Stomatal Behaviour in an Arid Oasis of Northwestern China[J],2022,14(2).
APA	Han, Tuo,Feng, Qi,Yu, Tengfei,Yang, Xiaomei,Zhang, Xiaofang,&Li, Kuan.(2022).Characteristic of Stomatal Conductance and Optimal Stomatal Behaviour in an Arid Oasis of Northwestern China.SUSTAINABILITY,14(2).
MLA	Han, Tuo,et al."Characteristic of Stomatal Conductance and Optimal Stomatal Behaviour in an Arid Oasis of Northwestern China".SUSTAINABILITY 14.2(2022).