globalchange  > 气候变化与战略
DOI: 10.1111/gcb.14929
论文题名:
Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity
作者: He P.; Gleason S.M.; Wright I.J.; Weng E.; Liu H.; Zhu S.; Lu M.; Luo Q.; Li R.; Wu G.; Yan E.; Song Y.; Mi X.; Hao G.; Reich P.B.; Wang Y.; Ellsworth D.S.; Ye Q.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2020
卷: 26, 期:3
语种: 英语
英文关键词: biome ; climate ; functional types ; hydraulic diversity ; species distribution ; water transport
Scopus关键词: biome ; climate change ; community composition ; community response ; functional role ; future prospect ; geographical distribution ; global perspective ; growing season ; hydraulic conductivity ; photosynthesis ; precipitation (climatology) ; temperature effect ; transpiration ; warming ; xylem ; article ; climate change ; cold stress ; desert ; growing season ; human ; hydraulic conductivity ; latitude ; precipitation ; species distribution ; tundra ; warming ; water transport ; xylem
英文摘要: Stem xylem-specific hydraulic conductivity (KS) represents the potential for plant water transport normalized by xylem cross section, length, and driving force. Variation in KS has implications for plant transpiration and photosynthesis, growth and survival, and also the geographic distribution of species. Clarifying the global-scale patterns of KS and its major drivers is needed to achieve a better understanding of how plants adapt to different environmental conditions, particularly under climate change scenarios. Here, we compiled a xylem hydraulics dataset with 1,186 species-at-site combinations (975 woody species representing 146 families, from 199 sites worldwide), and investigated how KS varied with climatic variables, plant functional types, and biomes. Growing-season temperature and growing-season precipitation drove global variation in KS independently. Both the mean and the variation in KS were highest in the warm and wet tropical regions, and lower in cold and dry regions, such as tundra and desert biomes. Our results suggest that future warming and redistribution of seasonal precipitation may have a significant impact on species functional diversity, and is likely to be particularly important in regions becoming warmer or drier, such as high latitudes. This highlights an important role for KS in predicting shifts in community composition in the face of climate change. © 2019 John Wiley & Sons Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158786
Appears in Collections:气候变化与战略

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作者单位: Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, and Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Guangzhou, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China; USDA-ARS Water Management and Systems Research Unit, Fort Collins, CO, United States; Department of Biological Sciences, Macquarie University, Sydney, NSW, Australia; Center for Climate Systems Research, Columbia University, New York, NY, United States; Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, China; Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, United States; Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China; Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou, China; School of Ecological and Environmental Sciences, East China Normal University, Shanghai, China; State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China; Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; Department of Forest Resources, University of Minnesota, St. Paul, MN, United States; Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia; CSIRO Oceans and Atmosphere, Aspendale, VIC, Australia

Recommended Citation:
He P.,Gleason S.M.,Wright I.J.,et al. Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity[J]. Global Change Biology,2020-01-01,26(3)
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