Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior
Abstract There is a substantial amount of carbon stored in the permafrost soils of boreal forest ecosystems, where it is currently protected from decomposition. The surface organic horizons insulate the deeper soil from variations in atmospheric temperature. The removal of these insulating horizons...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1052.6084 2023-05-15T13:03:25+02:00 Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior H Genet A D Mcguire K Barrett A Breen E S Euskirchen J F Johnstone E S Kasischke A M Melvin A Bennett M C Mack T S Rupp A E G Schuur M R Turetsky F Yuan The Pennsylvania State University CiteSeerX Archives 2013 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1052.6084 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1052.6084 Metadata may be used without restrictions as long as the oai identifier remains attached to it. https://lra.le.ac.uk/bitstream/2381/37489/4/erl13_4_045016.pdf text 2013 ftciteseerx 2020-04-12T00:16:33Z Abstract There is a substantial amount of carbon stored in the permafrost soils of boreal forest ecosystems, where it is currently protected from decomposition. The surface organic horizons insulate the deeper soil from variations in atmospheric temperature. The removal of these insulating horizons through consumption by fire increases the vulnerability of permafrost to thaw, and the carbon stored in permafrost to decomposition. In this study we ask how warming and fire regime may influence spatial and temporal changes in active layer and carbon dynamics across a boreal forest landscape in interior Alaska. To address this question, we (1) developed and tested a predictive model of the effect of fire severity on soil organic horizons that depends on landscape-level conditions and (2) used this model to evaluate the long-term consequences of warming and changes in fire regime on active layer and soil carbon dynamics of black spruce forests across interior Alaska. The predictive model of fire severity, designed from the analysis of field observations, reproduces the effect of local topography (landform category, the slope angle and aspect and flow accumulation), weather conditions (drought index, soil moisture) and fire characteristics (day of year and size of the fire) on the reduction of the organic layer Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Text Active layer thickness permafrost Alaska Unknown |
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Open Polar |
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ftciteseerx |
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English |
description |
Abstract There is a substantial amount of carbon stored in the permafrost soils of boreal forest ecosystems, where it is currently protected from decomposition. The surface organic horizons insulate the deeper soil from variations in atmospheric temperature. The removal of these insulating horizons through consumption by fire increases the vulnerability of permafrost to thaw, and the carbon stored in permafrost to decomposition. In this study we ask how warming and fire regime may influence spatial and temporal changes in active layer and carbon dynamics across a boreal forest landscape in interior Alaska. To address this question, we (1) developed and tested a predictive model of the effect of fire severity on soil organic horizons that depends on landscape-level conditions and (2) used this model to evaluate the long-term consequences of warming and changes in fire regime on active layer and soil carbon dynamics of black spruce forests across interior Alaska. The predictive model of fire severity, designed from the analysis of field observations, reproduces the effect of local topography (landform category, the slope angle and aspect and flow accumulation), weather conditions (drought index, soil moisture) and fire characteristics (day of year and size of the fire) on the reduction of the organic layer Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
H Genet A D Mcguire K Barrett A Breen E S Euskirchen J F Johnstone E S Kasischke A M Melvin A Bennett M C Mack T S Rupp A E G Schuur M R Turetsky F Yuan |
spellingShingle |
H Genet A D Mcguire K Barrett A Breen E S Euskirchen J F Johnstone E S Kasischke A M Melvin A Bennett M C Mack T S Rupp A E G Schuur M R Turetsky F Yuan Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
author_facet |
H Genet A D Mcguire K Barrett A Breen E S Euskirchen J F Johnstone E S Kasischke A M Melvin A Bennett M C Mack T S Rupp A E G Schuur M R Turetsky F Yuan |
author_sort |
H Genet |
title |
Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
title_short |
Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
title_full |
Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
title_fullStr |
Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
title_full_unstemmed |
Modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
title_sort |
modeling the effects of fire severity and climate warming on active layer thickness and soil carbon storage of black spruce forests across the landscape in interior |
publishDate |
2013 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1052.6084 |
genre |
Active layer thickness permafrost Alaska |
genre_facet |
Active layer thickness permafrost Alaska |
op_source |
https://lra.le.ac.uk/bitstream/2381/37489/4/erl13_4_045016.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1052.6084 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766336470246752256 |