Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro
As temperatures decrease in autumn, vegetation of temperate and boreal ecosystems increases its tolerance to freezing. This process, known as hardening, results in a set of physiological changes at the molecular level that initiate modifications of cell membrane composition and the synthesis of anti...
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Online Access: | http://hdl.handle.net/10852/99979 https://doi.org/10.5194/gmd-15-8809-2022 |
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ftoslouniv:oai:www.duo.uio.no:10852/99979 2024-09-30T14:28:09+00:00 Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro ENEngelskEnglishInclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro Lambert, Marius Tang, Hui Aas, Kjetil Schanke Stordal, Frode Fisher, Rosie Fang, Yilin Ding, Junyan Parmentier, Frans-Jan W. 2023-01-15T14:37:17Z http://hdl.handle.net/10852/99979 https://doi.org/10.5194/gmd-15-8809-2022 EN eng Copernicus GmbH NFR/274711 Lambert, Marius Tang, Hui Aas, Kjetil Schanke Stordal, Frode Fisher, Rosie Fang, Yilin Ding, Junyan Parmentier, Frans-Jan W. . Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro. Geoscientific Model Development. 2022, 15(23), 8809-8829 http://hdl.handle.net/10852/99979 2107109 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geoscientific Model Development&rft.volume=15&rft.spage=8809&rft.date=2022 Geoscientific Model Development 15 23 8809 8829 https://doi.org/10.5194/gmd-15-8809-2022 Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ 1991-959X Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2023 ftoslouniv https://doi.org/10.5194/gmd-15-8809-2022 2024-09-12T05:44:05Z As temperatures decrease in autumn, vegetation of temperate and boreal ecosystems increases its tolerance to freezing. This process, known as hardening, results in a set of physiological changes at the molecular level that initiate modifications of cell membrane composition and the synthesis of anti-freeze proteins. Together with the freezing of extracellular water, anti-freeze proteins reduce plant water potentials and xylem conductivity. To represent the responses of vegetation to climate change, land surface schemes increasingly employ “hydrodynamic” models that represent the explicit fluxes of water from soil and through plants. The functioning of such schemes under frozen soil conditions, however, is poorly understood. Nonetheless, hydraulic processes are of major importance in the dynamics of these systems, which can suffer from, e.g., winter “frost drought” events. In this study, we implement a scheme that represents hardening into CLM5.0-FATES-Hydro. FATES-Hydro is a plant hydrodynamics module in FATES, a cohort model of vegetation physiology, growth, and dynamics hosted in CLM5.0. We find that, in frozen systems, it is necessary to introduce reductions in plant water loss associated with hardening to prevent winter desiccation. This work makes it possible to use CLM5.0-FATES-Hydro to model realistic impacts from frost droughts on vegetation growth and photosynthesis, leading to more reliable projections of how northern ecosystems respond to climate change. Article in Journal/Newspaper Arctic Arctic Climate change Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Geoscientific Model Development 15 23 8809 8829 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
As temperatures decrease in autumn, vegetation of temperate and boreal ecosystems increases its tolerance to freezing. This process, known as hardening, results in a set of physiological changes at the molecular level that initiate modifications of cell membrane composition and the synthesis of anti-freeze proteins. Together with the freezing of extracellular water, anti-freeze proteins reduce plant water potentials and xylem conductivity. To represent the responses of vegetation to climate change, land surface schemes increasingly employ “hydrodynamic” models that represent the explicit fluxes of water from soil and through plants. The functioning of such schemes under frozen soil conditions, however, is poorly understood. Nonetheless, hydraulic processes are of major importance in the dynamics of these systems, which can suffer from, e.g., winter “frost drought” events. In this study, we implement a scheme that represents hardening into CLM5.0-FATES-Hydro. FATES-Hydro is a plant hydrodynamics module in FATES, a cohort model of vegetation physiology, growth, and dynamics hosted in CLM5.0. We find that, in frozen systems, it is necessary to introduce reductions in plant water loss associated with hardening to prevent winter desiccation. This work makes it possible to use CLM5.0-FATES-Hydro to model realistic impacts from frost droughts on vegetation growth and photosynthesis, leading to more reliable projections of how northern ecosystems respond to climate change. |
format |
Article in Journal/Newspaper |
author |
Lambert, Marius Tang, Hui Aas, Kjetil Schanke Stordal, Frode Fisher, Rosie Fang, Yilin Ding, Junyan Parmentier, Frans-Jan W. |
spellingShingle |
Lambert, Marius Tang, Hui Aas, Kjetil Schanke Stordal, Frode Fisher, Rosie Fang, Yilin Ding, Junyan Parmentier, Frans-Jan W. Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro |
author_facet |
Lambert, Marius Tang, Hui Aas, Kjetil Schanke Stordal, Frode Fisher, Rosie Fang, Yilin Ding, Junyan Parmentier, Frans-Jan W. |
author_sort |
Lambert, Marius |
title |
Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro |
title_short |
Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro |
title_full |
Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro |
title_fullStr |
Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro |
title_full_unstemmed |
Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro |
title_sort |
inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the arctic-boreal zone in clm5.0-fates-hydro |
publisher |
Copernicus GmbH |
publishDate |
2023 |
url |
http://hdl.handle.net/10852/99979 https://doi.org/10.5194/gmd-15-8809-2022 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change |
genre_facet |
Arctic Arctic Climate change |
op_source |
1991-959X |
op_relation |
NFR/274711 Lambert, Marius Tang, Hui Aas, Kjetil Schanke Stordal, Frode Fisher, Rosie Fang, Yilin Ding, Junyan Parmentier, Frans-Jan W. . Inclusion of a cold hardening scheme to represent frost tolerance is essential to model realistic plant hydraulics in the Arctic-boreal zone in CLM5.0-FATES-Hydro. Geoscientific Model Development. 2022, 15(23), 8809-8829 http://hdl.handle.net/10852/99979 2107109 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Geoscientific Model Development&rft.volume=15&rft.spage=8809&rft.date=2022 Geoscientific Model Development 15 23 8809 8829 https://doi.org/10.5194/gmd-15-8809-2022 |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.5194/gmd-15-8809-2022 |
container_title |
Geoscientific Model Development |
container_volume |
15 |
container_issue |
23 |
container_start_page |
8809 |
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8829 |
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