WuGuoLiuEtAl2019

Référence

Wu, X., Guo, W., Liu, H., Li, X., Peng, C., Allen, C.D., Zhang, C., Wang, P., Pei, T., Ma, Y., Tian, Y., Song, Z., Zhu, W., Wang, Y., Li, Z., Chen, D. (2019) Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere. National Science Review, 6(4):786-795. (Scopus )

Résumé

In recent decades, terrestrial vegetation in the northern hemisphere (NH) has been exposed to warming and more extremely high temperatures. However, the consequences of these changes for terrestrial vegetation growth remain poorly quantified and understood. By examining a satellite-based vegetation index, tree-ring measurements and land-surface model simulations, we discovered a consistent convex pattern in the responses of vegetation growth to temperature exposure (TE) for forest, shrub and grass in both the temperate (30°-50° N) and boreal (50°-70° N) NH during the period of 1982-2012. The response of vegetation growth to TE for the three vegetation types in both the temperate and boreal NH increased convergently with increasing temperature, until vegetation type-dependent temperature thresholds were reached. A TE beyond these temperature thresholds resulted in disproportionately weak positive or even strong negative responses. Vegetation growth in the boreal NH was more vulnerable to extremely high-temperature events than vegetation growth in the temporal NH. The non-linear responses discovered here provide new insights into the dynamics of northern terrestrial ecosystems in a warmer world. © 2019 The Author(s) 2018. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd.

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@ARTICLE { WuGuoLiuEtAl2019,
    AUTHOR = { Wu, X. and Guo, W. and Liu, H. and Li, X. and Peng, C. and Allen, C.D. and Zhang, C. and Wang, P. and Pei, T. and Ma, Y. and Tian, Y. and Song, Z. and Zhu, W. and Wang, Y. and Li, Z. and Chen, D. },
    TITLE = { Exposures to temperature beyond threshold disproportionately reduce vegetation growth in the northern hemisphere },
    JOURNAL = { National Science Review },
    YEAR = { 2019 },
    VOLUME = { 6 },
    NUMBER = { 4 },
    PAGES = { 786-795 },
    NOTE = { cited By 0 },
    ABSTRACT = { In recent decades, terrestrial vegetation in the northern hemisphere (NH) has been exposed to warming and more extremely high temperatures. However, the consequences of these changes for terrestrial vegetation growth remain poorly quantified and understood. By examining a satellite-based vegetation index, tree-ring measurements and land-surface model simulations, we discovered a consistent convex pattern in the responses of vegetation growth to temperature exposure (TE) for forest, shrub and grass in both the temperate (30°-50° N) and boreal (50°-70° N) NH during the period of 1982-2012. The response of vegetation growth to TE for the three vegetation types in both the temperate and boreal NH increased convergently with increasing temperature, until vegetation type-dependent temperature thresholds were reached. A TE beyond these temperature thresholds resulted in disproportionately weak positive or even strong negative responses. Vegetation growth in the boreal NH was more vulnerable to extremely high-temperature events than vegetation growth in the temporal NH. The non-linear responses discovered here provide new insights into the dynamics of northern terrestrial ecosystems in a warmer world. © 2019 The Author(s) 2018. Published by Oxford University Press on behalf of China Science Publishing & Media Ltd. },
    AFFILIATION = { State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, 100875, China; Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China; College of Urban and Environmental Science, Peking University, Beijing, 100871, China; Institute of Environment Sciences, University of Quebec, Montreal, QC G1K 9H7, Canada; US Geological Survey, Fort Collins Science Center, Jemez Mountains Field Station, Los Alamos, NM 87544, United States; Institute of the Surface-Earth System Science Research, Tianjin University, Tianjin, 300072, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Regional Climate Group, Department of Earth Sciences, University of Gothenburg, Gothenburg, 460, Sweden },
    AUTHOR_KEYWORDS = { extremely high temperature; non-linear response; temperate and boreal northern hemisphere; temperature exposure; vegetation growth },
    DOCUMENT_TYPE = { Article },
    DOI = { 10.1093/nsr/nwy158 },
    SOURCE = { Scopus },
    URL = { https://www.scopus.com/inward/record.uri?eid=2-s2.0-85072754113&doi=10.1093%2fnsr%2fnwy158&partnerID=40&md5=19b32373cd3d5322278b0022f2e593ca },
}

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