Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity

Pengcheng He; Sean M. Gleason; Ian J. Wright; Ensheng Weng; Hui Liu; Shidan Zhu; Mingzhen Lu; Qi Luo; Ronghua Li; Guilin Wu; Enrong Yan; Yanjun Song; Xiangcheng Mi; Guangyou Hao; Peter B. Reich; Yingping Wang; David S. Ellsworth; Qing Ye

doi:10.1111/gcb.14929

Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity

Pengcheng He, Sean M. Gleason, Ian J. Wright, Ensheng Weng, Hui Liu, Shidan Zhu, Mingzhen Lu, Qi Luo, Ronghua Li, Guilin Wu, Enrong Yan, Yanjun Song, Xiangcheng Mi, Guangyou Hao, Peter B. Reich, Yingping Wang, David S. Ellsworth, Qing Ye

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Abstract

Stem xylem-specific hydraulic conductivity (K_S) represents the potential for plant water transport normalized by xylem cross section, length, and driving force. Variation in K_S has implications for plant transpiration and photosynthesis, growth and survival, and also the geographic distribution of species. Clarifying the global-scale patterns of K_S 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 K_S varied with climatic variables, plant functional types, and biomes. Growing-season temperature and growing-season precipitation drove global variation in K_S independently. Both the mean and the variation in K_S 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 K_S in predicting shifts in community composition in the face of climate change.

Original language	English (US)
Pages (from-to)	1833-1841
Number of pages	9
Journal	Global change biology
Volume	26
Issue number	3
DOIs	https://doi.org/10.1111/gcb.14929
State	Published - Mar 1 2020

Bibliographical note

Funding Information:
We are grateful to the editor and reviewers for their constructive suggestions and comments on an earlier version of this manuscript. We thank Brendan Choat for his suggestions on data collection, Megan K. Bartlett and Yusuke Onoda for their comments on the manuscript, and Zeqing Ma for his suggestions on figure presentation. We also thank Xiaojuan Liu and Shaowei Jiang for their data contribution. This work was funded by the National Natural Science Foundation of China (31825005 and 31570405), and the Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences (ISEE2018YB01). The authors declare no conflict of interest.

Publisher Copyright:
© 2019 John Wiley & Sons Ltd

Keywords

biome
climate
functional types
hydraulic diversity
species distribution
water transport

PubMed: MeSH publication types

Journal Article
Research Support, Non-U.S. Gov't

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1111/gcb.14929

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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. (2020). Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity. Global change biology, 26(3), 1833-1841. https://doi.org/10.1111/gcb.14929

He, P, Gleason, SM, Wright, IJ, Weng, E, Liu, H, Zhu, S, Lu, M, Luo, Q, Li, R, Wu, G, Yan, E, Song, Y, Mi, X, Hao, G, Reich, PB, Wang, Y, Ellsworth, DS & Ye, Q 2020, 'Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity', Global change biology, vol. 26, no. 3, pp. 1833-1841. https://doi.org/10.1111/gcb.14929

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title = "Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity",

abstract = "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.",

keywords = "biome, climate, functional types, hydraulic diversity, species distribution, water transport",

author = "Pengcheng He and Gleason, {Sean M.} and Wright, {Ian J.} and Ensheng Weng and Hui Liu and Shidan Zhu and Mingzhen Lu and Qi Luo and Ronghua Li and Guilin Wu and Enrong Yan and Yanjun Song and Xiangcheng Mi and Guangyou Hao and Reich, {Peter B.} and Yingping Wang and Ellsworth, {David S.} and Qing Ye",

note = "Funding Information: We are grateful to the editor and reviewers for their constructive suggestions and comments on an earlier version of this manuscript. We thank Brendan Choat for his suggestions on data collection, Megan K. Bartlett and Yusuke Onoda for their comments on the manuscript, and Zeqing Ma for his suggestions on figure presentation. We also thank Xiaojuan Liu and Shaowei Jiang for their data contribution. This work was funded by the National Natural Science Foundation of China (31825005 and 31570405), and the Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences (ISEE2018YB01). The authors declare no conflict of interest. Publisher Copyright: {\textcopyright} 2019 John Wiley & Sons Ltd",

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AU - He, Pengcheng

AU - Gleason, Sean M.

AU - Wright, Ian J.

AU - Weng, Ensheng

AU - Liu, Hui

AU - Zhu, Shidan

AU - Lu, Mingzhen

AU - Luo, Qi

AU - Li, Ronghua

AU - Wu, Guilin

AU - Yan, Enrong

AU - Song, Yanjun

AU - Mi, Xiangcheng

AU - Hao, Guangyou

AU - Reich, Peter B.

AU - Wang, Yingping

AU - Ellsworth, David S.

AU - Ye, Qing

N1 - Funding Information: We are grateful to the editor and reviewers for their constructive suggestions and comments on an earlier version of this manuscript. We thank Brendan Choat for his suggestions on data collection, Megan K. Bartlett and Yusuke Onoda for their comments on the manuscript, and Zeqing Ma for his suggestions on figure presentation. We also thank Xiaojuan Liu and Shaowei Jiang for their data contribution. This work was funded by the National Natural Science Foundation of China (31825005 and 31570405), and the Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences (ISEE2018YB01). The authors declare no conflict of interest. Publisher Copyright: © 2019 John Wiley & Sons Ltd

PY - 2020/3/1

Y1 - 2020/3/1

N2 - 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.

AB - 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.

KW - biome

KW - climate

KW - functional types

KW - hydraulic diversity

KW - species distribution

KW - water transport

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JO - Global Change Biology

JF - Global Change Biology

SN - 1354-1013

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ER -

Growing-season temperature and precipitation are independent drivers of global variation in xylem hydraulic conductivity

Abstract

Bibliographical note

Keywords

PubMed: MeSH publication types

UN SDGs

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