干旱区生态环境知识资源中心(Arid): Interpreting the water use strategies of plantation tree species by canopy stomatal conductance and its sensitivity to vapor pressure deficit in South China

Arid

DOI	10.1016/j.foreco.2021.119940
	Interpreting the water use strategies of plantation tree species by canopy stomatal conductance and its sensitivity to vapor pressure deficit in South China
	Ouyang, Lei; Zhao, Ping; Rao, Xingquan; Zhu, Liwei; Ni, Guangyan
通讯作者	Zhao, P (corresponding author)，Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Peoples R China.
来源期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
EISSN	1872-7042
出版年	2022
卷号	505
英文摘要	Stomatal regulation controls tree transpiration rate and is central to plant function. However, most previous studies that investigated the stomatal regulation of forest trees mainly focused on arid and semi-arid zones, uncertainty remains about how trees adjust their stomatal response to the changing environment in subtropical moist areas. In this study, we investigated the tree transpiration (E-l), canopy stomatal conductance (G(s)), and G(s) sensitivity to vapor pressure deficit (VPD) of four typical plantation tree species (Schima wallichii, Acacia mangium, Eucalyptus urophylla, and Cunninghamia lanceolata) in hilly lands of South China. Datasets including the continuously measured sap flow and meteorological parameters, as well as the physiological traits of the four species, were collected during the year of 2018. Our results showed that the coniferous C. lanceolata had significantly lower E-l, G(s), and weak sensitivity to VPD than the other three broadleaved species. We attributed the different water use and stomatal behavior to the various species-specific traits. The three broadleaved species generally possessed higher leaf area, specific leaf area (SLA), the ratio of sapwood area (A(s)) to leaf area (A(l)), and deeper root depth, facilitating their transpiration and gas exchange. During the experimental period, a super typhoonMangkhut hit the research site and caused substantial decline in leaf area, while the whole tree transpiration experienced slighter decrease, indicating the rapid compensatory effect of stomatal regulation. Moreover, the increased G(s) sensitivity to VPD (m values) and reference G(s) for the introduced A. mangium and E. urophylla in the dry season highlighted their ability to function well even under the much drier condition with no strict stomatal control. Our analyses on the response of G(s) to the changing environment for typical species in the subtropical moist forests will provide important insights for forest management and ecosystem stability under future climate changes.
英文关键词	Sap flow Canopy stomatal conductance Tree water use strategy Subtropical plantations
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000746967600003
WOS关键词	PHOTOSYNTHETIC CAPACITY ; SUBTROPICAL FORESTS ; SAP FLOW ; TRANSPIRATION ; RESPONSES ; DROUGHT ; CLIMATE ; GROWTH ; PINE ; FORM
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376916
作者单位	[Ouyang, Lei; Zhao, Ping; Rao, Xingquan; Zhu, Liwei; Ni, Guangyan] Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Peoples R China; [Ouyang, Lei; Zhao, Ping; Zhu, Liwei] Chinese Acad Sci, Ctr Plant Ecol, Core Bot Gardens, Guangzhou 51060, Peoples R China; [Zhao, Ping] Chinese Acad Sci, Guangdong Prov Key Lab Appl Bot, South China Bot Garden, Guangzhou 510650, Peoples R China
推荐引用方式 GB/T 7714	Ouyang, Lei,Zhao, Ping,Rao, Xingquan,et al. Interpreting the water use strategies of plantation tree species by canopy stomatal conductance and its sensitivity to vapor pressure deficit in South China[J],2022,505.
APA	Ouyang, Lei,Zhao, Ping,Rao, Xingquan,Zhu, Liwei,&Ni, Guangyan.(2022).Interpreting the water use strategies of plantation tree species by canopy stomatal conductance and its sensitivity to vapor pressure deficit in South China.FOREST ECOLOGY AND MANAGEMENT,505.
MLA	Ouyang, Lei,et al."Interpreting the water use strategies of plantation tree species by canopy stomatal conductance and its sensitivity to vapor pressure deficit in South China".FOREST ECOLOGY AND MANAGEMENT 505(2022).