Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic
Climate warming is increasing fire severity in boreal forests and can alter forest structure and carbon (C) dynamics in Cajander larch (Larix cajanderi) forests of Siberia, which occur over C and ice-rich yedoma permafrost. Altered forest structure may impact understory vegetation through changing c...
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ftmississippistu:oai:scholarsjunction.msstate.edu:td-3972 2023-05-15T14:56:14+02:00 Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic Pena, Homero 2017-12-08T08:00:00Z application/pdf https://scholarsjunction.msstate.edu/td/2973 https://scholarsjunction.msstate.edu/cgi/viewcontent.cgi?article=3972&context=td unknown Scholars Junction https://scholarsjunction.msstate.edu/td/2973 https://scholarsjunction.msstate.edu/cgi/viewcontent.cgi?article=3972&context=td Theses and Dissertations carbon pools Fire Climate warming Cajander larch Siberia Arctic Yedoma permafrost diversity text 2017 ftmississippistu 2022-02-14T18:23:04Z Climate warming is increasing fire severity in boreal forests and can alter forest structure and carbon (C) dynamics in Cajander larch (Larix cajanderi) forests of Siberia, which occur over C and ice-rich yedoma permafrost. Altered forest structure may impact understory vegetation through changing canopy cover, permafrost thaw depth, and soil temperatures. The primary objective of this study was to assess the long-term impacts of fire-driven changes in tree density on understory composition, diversity, and C pools and the underlying soil organic layer (SOL). Shrubs dominated low density stands, likely from reduced canopy cover and thaw depth, while mosses dominated high density stands. Consequently, understory C pools decreased from 415.46 to 158.87 g C m-2. Total SOL C pools remained unchanged as tree density increased. These findings suggest that fire-driven changes in tree density may alter understory composition and C pools, which could impact nutrient/water cycling and permafrost stability. Text Arctic Ice permafrost Siberia Scholars Junction - Mississippi State University Institutional Repository Arctic |
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Open Polar |
collection |
Scholars Junction - Mississippi State University Institutional Repository |
op_collection_id |
ftmississippistu |
language |
unknown |
topic |
carbon pools Fire Climate warming Cajander larch Siberia Arctic Yedoma permafrost diversity |
spellingShingle |
carbon pools Fire Climate warming Cajander larch Siberia Arctic Yedoma permafrost diversity Pena, Homero Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic |
topic_facet |
carbon pools Fire Climate warming Cajander larch Siberia Arctic Yedoma permafrost diversity |
description |
Climate warming is increasing fire severity in boreal forests and can alter forest structure and carbon (C) dynamics in Cajander larch (Larix cajanderi) forests of Siberia, which occur over C and ice-rich yedoma permafrost. Altered forest structure may impact understory vegetation through changing canopy cover, permafrost thaw depth, and soil temperatures. The primary objective of this study was to assess the long-term impacts of fire-driven changes in tree density on understory composition, diversity, and C pools and the underlying soil organic layer (SOL). Shrubs dominated low density stands, likely from reduced canopy cover and thaw depth, while mosses dominated high density stands. Consequently, understory C pools decreased from 415.46 to 158.87 g C m-2. Total SOL C pools remained unchanged as tree density increased. These findings suggest that fire-driven changes in tree density may alter understory composition and C pools, which could impact nutrient/water cycling and permafrost stability. |
format |
Text |
author |
Pena, Homero |
author_facet |
Pena, Homero |
author_sort |
Pena, Homero |
title |
Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic |
title_short |
Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic |
title_full |
Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic |
title_fullStr |
Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic |
title_full_unstemmed |
Long-Term Effects of Post-Fire Forest Structure on Understory Vegetation in Larch Forests of the Siberian Arctic |
title_sort |
long-term effects of post-fire forest structure on understory vegetation in larch forests of the siberian arctic |
publisher |
Scholars Junction |
publishDate |
2017 |
url |
https://scholarsjunction.msstate.edu/td/2973 https://scholarsjunction.msstate.edu/cgi/viewcontent.cgi?article=3972&context=td |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Ice permafrost Siberia |
genre_facet |
Arctic Ice permafrost Siberia |
op_source |
Theses and Dissertations |
op_relation |
https://scholarsjunction.msstate.edu/td/2973 https://scholarsjunction.msstate.edu/cgi/viewcontent.cgi?article=3972&context=td |
_version_ |
1766328255288180736 |