Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire
Rapid climate change at high latitudes is projected to increase wildfire extent in tundra ecosystems by up to five-fold 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. Th...
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ftdryad:oai:v1.datadryad.org:10255/dryad.222630 2023-05-15T14:26:00+02:00 Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire Carey, Joanna C. Abbott, Benjamin W. Rocha, Adrian V. N. Slope Alaska (AK) Arctic 2007-2017 2019-09-12T20:18:57Z http://hdl.handle.net/10255/dryad.222630 https://doi.org/10.5061/dryad.79q74n7 unknown doi:10.5061/dryad.79q74n7/1 doi:10.5061/dryad.79q74n7/2 doi:10.5061/dryad.79q74n7/3 doi:10.5061/dryad.79q74n7/4 doi:10.1029/2019ef001149 doi:10.5061/dryad.79q74n7 Carey JC, Abbott BW, Rocha AV (2019) Plant uptake offsets silica release from a large Arctic tundra wildfire. Earth's Future. http://hdl.handle.net/10255/dryad.222630 permafrost silicon silica tunda wildfire succession Article 2019 ftdryad https://doi.org/10.5061/dryad.79q74n7 https://doi.org/10.5061/dryad.79q74n7/1 https://doi.org/10.5061/dryad.79q74n7/2 https://doi.org/10.5061/dryad.79q74n7/3 https://doi.org/10.5061/dryad.79q74n7/4 https://doi.org/10.1029/2019ef001149 2020-01-01T16:31:53Z Rapid climate change at high latitudes is projected to increase wildfire extent in tundra ecosystems by up to five-fold 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 long-term 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 post-wildfire succession. Article in Journal/Newspaper Arctic Arctic Climate change permafrost Tundra Alaska Dryad Digital Repository (Duke University) Arctic |
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Open Polar |
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Dryad Digital Repository (Duke University) |
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ftdryad |
language |
unknown |
topic |
permafrost silicon silica tunda wildfire succession |
spellingShingle |
permafrost silicon silica tunda wildfire succession Carey, Joanna C. Abbott, Benjamin W. Rocha, Adrian V. Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire |
topic_facet |
permafrost silicon silica tunda wildfire succession |
description |
Rapid climate change at high latitudes is projected to increase wildfire extent in tundra ecosystems by up to five-fold 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 long-term 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 post-wildfire succession. |
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 |
Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire |
title_short |
Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire |
title_full |
Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire |
title_fullStr |
Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire |
title_full_unstemmed |
Data from: Plant uptake offsets silica release from a large Arctic tundra wildfire |
title_sort |
data from: plant uptake offsets silica release from a large arctic tundra wildfire |
publishDate |
2019 |
url |
http://hdl.handle.net/10255/dryad.222630 https://doi.org/10.5061/dryad.79q74n7 |
op_coverage |
N. Slope Alaska (AK) Arctic 2007-2017 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic Climate change permafrost Tundra Alaska |
genre_facet |
Arctic Arctic Climate change permafrost Tundra Alaska |
op_relation |
doi:10.5061/dryad.79q74n7/1 doi:10.5061/dryad.79q74n7/2 doi:10.5061/dryad.79q74n7/3 doi:10.5061/dryad.79q74n7/4 doi:10.1029/2019ef001149 doi:10.5061/dryad.79q74n7 Carey JC, Abbott BW, Rocha AV (2019) Plant uptake offsets silica release from a large Arctic tundra wildfire. Earth's Future. http://hdl.handle.net/10255/dryad.222630 |
op_doi |
https://doi.org/10.5061/dryad.79q74n7 https://doi.org/10.5061/dryad.79q74n7/1 https://doi.org/10.5061/dryad.79q74n7/2 https://doi.org/10.5061/dryad.79q74n7/3 https://doi.org/10.5061/dryad.79q74n7/4 https://doi.org/10.1029/2019ef001149 |
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1766298479168061440 |