Geographic range of plants drives long-term climate change

Abstract Long computation times in vegetation and climate models hamper our ability to evaluate the potentially powerful role of plants on weathering and carbon sequestration over the Phanerozoic Eon. Simulated vegetation over deep time is often homogenous, and disregards the spatial distribution of...

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Main Authors: Khushboo Gurung, Katie J. Field, Sarah A. Batterman, Simon W. Poulton, Benjamin J. W. Mills
Format: Article
Language:English
Published: Nature Portfolio 2024-02-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-46105-1
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author Khushboo Gurung
Katie J. Field
Sarah A. Batterman
Simon W. Poulton
Benjamin J. W. Mills
author_facet Khushboo Gurung
Katie J. Field
Sarah A. Batterman
Simon W. Poulton
Benjamin J. W. Mills
author_sort Khushboo Gurung
collection DOAJ
description Abstract Long computation times in vegetation and climate models hamper our ability to evaluate the potentially powerful role of plants on weathering and carbon sequestration over the Phanerozoic Eon. Simulated vegetation over deep time is often homogenous, and disregards the spatial distribution of plants and the impact of local climatic variables on plant function. Here we couple a fast vegetation model (FLORA) to a spatially-resolved long-term climate-biogeochemical model (SCION), to assess links between plant geographical range, the long-term carbon cycle and climate. Model results show lower rates of carbon fixation and up to double the previously predicted atmospheric CO2 concentration due to a limited plant geographical range over the arid Pangea supercontinent. The Mesozoic dispersion of the continents increases modelled plant geographical range from 65% to > 90%, amplifying global CO2 removal, consistent with geological data. We demonstrate that plant geographical range likely exerted a major, under-explored control on long-term climate change.
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spelling doaj.art-3aa384b7f6fe477ca3032d1d52e19c932024-03-05T19:42:22ZengNature PortfolioNature Communications2041-17232024-02-011511710.1038/s41467-024-46105-1Geographic range of plants drives long-term climate changeKhushboo Gurung0Katie J. Field1Sarah A. Batterman2Simon W. Poulton3Benjamin J. W. Mills4School of Earth and Environment, University of LeedsPlants, Photosynthesis and Soil, School of Biosciences, University of SheffieldCary Institute of Ecosystem StudiesSchool of Earth and Environment, University of LeedsSchool of Earth and Environment, University of LeedsAbstract Long computation times in vegetation and climate models hamper our ability to evaluate the potentially powerful role of plants on weathering and carbon sequestration over the Phanerozoic Eon. Simulated vegetation over deep time is often homogenous, and disregards the spatial distribution of plants and the impact of local climatic variables on plant function. Here we couple a fast vegetation model (FLORA) to a spatially-resolved long-term climate-biogeochemical model (SCION), to assess links between plant geographical range, the long-term carbon cycle and climate. Model results show lower rates of carbon fixation and up to double the previously predicted atmospheric CO2 concentration due to a limited plant geographical range over the arid Pangea supercontinent. The Mesozoic dispersion of the continents increases modelled plant geographical range from 65% to > 90%, amplifying global CO2 removal, consistent with geological data. We demonstrate that plant geographical range likely exerted a major, under-explored control on long-term climate change.https://doi.org/10.1038/s41467-024-46105-1
spellingShingle Khushboo Gurung
Katie J. Field
Sarah A. Batterman
Simon W. Poulton
Benjamin J. W. Mills
Geographic range of plants drives long-term climate change
Nature Communications
title Geographic range of plants drives long-term climate change
title_full Geographic range of plants drives long-term climate change
title_fullStr Geographic range of plants drives long-term climate change
title_full_unstemmed Geographic range of plants drives long-term climate change
title_short Geographic range of plants drives long-term climate change
title_sort geographic range of plants drives long term climate change
url https://doi.org/10.1038/s41467-024-46105-1
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