Plant uptake offsets silica release from a large arctic tundra wildfire
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Carey, J. C., Abbott, B. W., & Rocha, A. V. Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), (2019...
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American Geophysical Union
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Online Access: | https://hdl.handle.net/1912/25333 |
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/25333 2023-05-15T14:23:29+02:00 Plant uptake offsets silica release from a large arctic tundra wildfire Carey, Joanna C. Abbott, Benjamin W. Rocha, Adrian V. 2019-07-24 https://hdl.handle.net/1912/25333 unknown American Geophysical Union http://doi.org/10.1029/2019EF001149 Carey, J. C., Abbott, B. W., & Rocha, A. V. (2019). Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), 1044-1057. https://hdl.handle.net/1912/25333 doi:10.1029/2019EF001149 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Carey, J. C., Abbott, B. W., & Rocha, A. V. (2019). Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), 1044-1057. doi:10.1029/2019EF001149 silica Arctic tundra wildfire vegetation permafrost Article 2019 ftwhoas https://doi.org/10.1029/2019EF001149 2022-05-28T23:03:30Z © The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Carey, J. C., Abbott, B. W., & Rocha, A. V. Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), (2019): 1044-1057, doi:10.1029/2019EF001149. Rapid climate change at high latitudes is projected to increase wildfire extent in tundra ecosystems by up to fivefold by the end of the century. Tundra wildfire could alter terrestrial silica (SiO2) cycling by restructuring surface vegetation and by deepening the seasonally thawed active layer. These changes could influence the availability of silica in terrestrial permafrost ecosystems and alter lateral exports to downstream marine waters, where silica is often a limiting nutrient. In this context, we investigated the effects of the largest Arctic tundra fire in recent times on plant and peat amorphous silica content and dissolved silica concentration in streams. Ten years after the fire, vegetation in burned areas had 73% more silica in aboveground biomass compared to adjacent, unburned areas. This increase in plant silica was attributable to significantly higher plant silica concentration in bryophytes and increased prevalence of silica‐rich gramminoids in burned areas. Tundra fire redistributed peat silica, with burned areas containing significantly higher amorphous silica concentrations in the O‐layer, but 29% less silica in peat overall due to shallower peat depth post burn. Despite these dramatic differences in terrestrial silica dynamics, dissolved silica concentration in tributaries draining burned catchments did not differ from unburned catchments, potentially due to the increased uptake by terrestrial vegetation. Together, these results suggest that tundra wildfire enhances terrestrial availability of silica via permafrost degradation and associated weathering, but that changes in lateral silica export may depend on vegetation uptake during the first decade of ... Article in Journal/Newspaper Arctic Arctic Climate change permafrost Tundra Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Abbott ENVELOPE(-62.133,-62.133,-64.100,-64.100) Arctic Earth's Future 7 9 1044 1057 |
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Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
silica Arctic tundra wildfire vegetation permafrost |
spellingShingle |
silica Arctic tundra wildfire vegetation permafrost Carey, Joanna C. Abbott, Benjamin W. Rocha, Adrian V. Plant uptake offsets silica release from a large arctic tundra wildfire |
topic_facet |
silica Arctic tundra wildfire vegetation permafrost |
description |
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Carey, J. C., Abbott, B. W., & Rocha, A. V. Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), (2019): 1044-1057, doi:10.1029/2019EF001149. Rapid climate change at high latitudes is projected to increase wildfire extent in tundra ecosystems by up to fivefold by the end of the century. Tundra wildfire could alter terrestrial silica (SiO2) cycling by restructuring surface vegetation and by deepening the seasonally thawed active layer. These changes could influence the availability of silica in terrestrial permafrost ecosystems and alter lateral exports to downstream marine waters, where silica is often a limiting nutrient. In this context, we investigated the effects of the largest Arctic tundra fire in recent times on plant and peat amorphous silica content and dissolved silica concentration in streams. Ten years after the fire, vegetation in burned areas had 73% more silica in aboveground biomass compared to adjacent, unburned areas. This increase in plant silica was attributable to significantly higher plant silica concentration in bryophytes and increased prevalence of silica‐rich gramminoids in burned areas. Tundra fire redistributed peat silica, with burned areas containing significantly higher amorphous silica concentrations in the O‐layer, but 29% less silica in peat overall due to shallower peat depth post burn. Despite these dramatic differences in terrestrial silica dynamics, dissolved silica concentration in tributaries draining burned catchments did not differ from unburned catchments, potentially due to the increased uptake by terrestrial vegetation. Together, these results suggest that tundra wildfire enhances terrestrial availability of silica via permafrost degradation and associated weathering, but that changes in lateral silica export may depend on vegetation uptake during the first decade of ... |
format |
Article in Journal/Newspaper |
author |
Carey, Joanna C. Abbott, Benjamin W. Rocha, Adrian V. |
author_facet |
Carey, Joanna C. Abbott, Benjamin W. Rocha, Adrian V. |
author_sort |
Carey, Joanna C. |
title |
Plant uptake offsets silica release from a large arctic tundra wildfire |
title_short |
Plant uptake offsets silica release from a large arctic tundra wildfire |
title_full |
Plant uptake offsets silica release from a large arctic tundra wildfire |
title_fullStr |
Plant uptake offsets silica release from a large arctic tundra wildfire |
title_full_unstemmed |
Plant uptake offsets silica release from a large arctic tundra wildfire |
title_sort |
plant uptake offsets silica release from a large arctic tundra wildfire |
publisher |
American Geophysical Union |
publishDate |
2019 |
url |
https://hdl.handle.net/1912/25333 |
long_lat |
ENVELOPE(-62.133,-62.133,-64.100,-64.100) |
geographic |
Abbott Arctic |
geographic_facet |
Abbott Arctic |
genre |
Arctic Arctic Climate change permafrost Tundra |
genre_facet |
Arctic Arctic Climate change permafrost Tundra |
op_source |
Carey, J. C., Abbott, B. W., & Rocha, A. V. (2019). Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), 1044-1057. doi:10.1029/2019EF001149 |
op_relation |
http://doi.org/10.1029/2019EF001149 Carey, J. C., Abbott, B. W., & Rocha, A. V. (2019). Plant uptake offsets silica release from a large arctic tundra wildfire. Earth’s Future, 7(9), 1044-1057. https://hdl.handle.net/1912/25333 doi:10.1029/2019EF001149 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1029/2019EF001149 |
container_title |
Earth's Future |
container_volume |
7 |
container_issue |
9 |
container_start_page |
1044 |
op_container_end_page |
1057 |
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1766296022546382848 |