气候变化领域集成服务门户(CCPortal): Transpiration of Moso bamboo in southern China is influenced by ramet age, phenology, and drought

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DOI	10.1016/j.foreco.2019.117526
	Transpiration of Moso bamboo in southern China is influenced by ramet age, phenology, and drought
	Gu D.; He W.; Huang K.; Otieno D.; Zhou C.; He C.; Huang Y.
发表日期	2019
ISSN	0378-1127
卷号	450
英文摘要	Forest transpiration is coupled with environmental variables and has a profound effect on regional water cycle and water balance. Understanding how the biotic and abiotic environments influence transpiration is vital in understanding forest water use strategies, and for evaluating forest feedback to climate change. Moso bamboo (Phyllostachys edulis), a woody bamboo species, is rapidly spreading in the southern parts of China and must have a significant influence on ecosystem processes here. This study examined culm sap flow in P. edulis in southern China to identify key factors that determine its transpiration at individual and stand scale. Sap flux density was higher in the 1–2 years old ramets than those >3 years old, during the entire growing season. Daily accumulated sap flux density and its sensitivity to the physical environment (air vapor pressure deficit-VPD and solar radiation) during the non-shooting period were approximately 2 and 3 times higher than during the shooting-leafing period for 1–2 and >3 years old culms, respectively. During the non-shooting period, daily maximum and accumulated sap flux density of the 1–2 years old ramets had no correlation with soil water content, while that of >3 years old ramets declined linearly with decreasing soil water content (SWC). Stand transpiration remained low, and was not affected by changes in SWC during the shooting-leafing period, while that of non-shooting period was linearly correlated with SWC. The results showed that transpiration of Moso bamboo was interactively influenced by culm age, phenological stages and soil drought. We demonstrate the role of ramet age and phenology on bamboo stand transpiration and how it responds to soil drought. Our study reveals the special water use strategies in Moso bamboo forests. © 2019 Elsevier B.V.
英文关键词	Phenological effect; Phyllostachys edulis; Sap flow; Soil drought; Transpiration
语种	英语
scopus关键词	Bamboo; Climate change; Clone cells; Drought; Soil moisture; Transpiration; Environmental variables; Forest transpirations; Phenological effect; Phyllostachys edulis; Physical environments; Sap flow; Soil drought; Vapor pressure deficit; Forestry; bamboo; drought stress; hydrological cycle; phenology; ramet; sap flow; soil water; transpiration; vapor pressure; water content; water use efficiency; Age; Bamboo; Clones; Drought; Forestry; Sap; Transpiration; Phyllostachys acuta; Phyllostachys pubescens
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155789
作者单位	Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin, 541006, China; Jaramogi Oginga Odinga University of Science & Technology, Bondo, 210-4061, Kenya; Key Laboratory of Environmental Evolution and Resource Utilization of the Beibu Gulf, Ministry of Education & Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation, Nanning Normal University, Nanning, 530001, China
推荐引用方式 GB/T 7714	Gu D.,He W.,Huang K.,et al. Transpiration of Moso bamboo in southern China is influenced by ramet age, phenology, and drought[J],2019,450.
APA	Gu D..,He W..,Huang K..,Otieno D..,Zhou C..,...&Huang Y..(2019).Transpiration of Moso bamboo in southern China is influenced by ramet age, phenology, and drought.Forest Ecology and Management,450.
MLA	Gu D.,et al."Transpiration of Moso bamboo in southern China is influenced by ramet age, phenology, and drought".Forest Ecology and Management 450(2019).