Increased atmospheric vapor pressure deficit reduces global vegetation growth
Jain, Atul K
Nabel, Julia E M S
Smith, William K
AffiliationUniv Arizona, Sch Nat Resources & Environm
MetadataShow full item record
PublisherAMER ASSOC ADVANCEMENT SCIENCE
CitationW. Yuan, Y. Zheng, S. Piao, P. Ciais, D. Lombardozzi, Y. Wang, Y. Ryu, G. Chen, W. Dong, Z. Hu, A. K. Jain, C. Jiang, E. Kato, S. Li, S. Lienert, S. Liu, J. E.M.S. Nabel, Z. Qin, T. Quine, S. Sitch, W. K. Smith, F. Wang, C. Wu, Z. Xiao, S. Yang, Increased atmospheric vapor pressure deficit reduces global vegetation growth. Sci. Adv. 5, eaax1396 (2019).
RightsCopyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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AbstractAtmospheric vapor pressure deficit (VPD) is a critical variable in determining plant photosynthesis. Synthesis of four global climate datasets reveals a sharp increase of VPD after the late 1990s. In response, the vegetation greening trend indicated by a satellite-derived vegetation index (GIMMS3g), which was evident before the late 1990s, was subsequently stalled or reversed. Terrestrial gross primary production derived from two satellite-based models (revised EC-LUE and MODIS) exhibits persistent and widespread decreases after the late 1990s due to increased VPD, which offset the positive CO2 fertilization effect. Six Earth system models have consistently projected continuous increases of VPD throughout the current century. Our results highlight that the impacts of VPD on vegetation growth should be adequately considered to assess ecosystem responses to future climate conditions.
NoteOpen access journal
VersionFinal published version
SponsorsNational Basic Research Program of China [2016YFA0602701]; National Youth Top-notch Talent Support Program [2015-48]; Changjiang Young Scholars Programme of China [Q2016161]
Except where otherwise noted, this item's license is described as Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
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