Increased atmospheric vapor pressure deficit reduces global vegetation growth
By W. Yuan, Yi Zheng, Shilong Piao, Philippe Ciais, D. Lombardozzi, Ying Ping Wang, Youngryel Ryu, Guixing Chen, Wen-jie Dong, Zhongmin Hu and 15 more. Science Advances, 2019
1,460 citations recorded by the source corpus.
Global vegetation greening trend stalled after the late 1990s due to increased atmospheric water demand. Atmospheric 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.
Subfields: Atmospheric Science, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/df6cca4b7b0bc994ae4dcbd7e6c064e434498b4d
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Citations in the corpus
- Plant responses to rising vapor pressure deficit. (2020, methodology): “Nevertheless, some studies have highlighted a sharp increase in global VPD in recent decades (Zhang et al., 2015; Yuan et al., 2019; Fig.”
- Pervasive shifts in forest dynamics in a changing world (2020, background): “Terrestrial greening indices indicate a shift from a CO2-driven increase in greenness in the late 20th century to aVPD-drivendecrease in the past decade (16).”