The role of fire in the boreal carbon budget
To reconcile observations of decomposition rates, carbon inventories, and net primary production (NPP), we estimated long-term averages for C exchange in boreal forests near Thompson, Manitoba. Soil drainage as defined by water table, moss cover, and permafrost dynamics, is the dominant control on d...
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2000
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ftcdlib:oai:escholarship.org:ark:/13030/qt3174n8q9 2023-09-05T13:22:32+02:00 The role of fire in the boreal carbon budget Harden, JW Trumbore, SE Stocks, BJ Hirsch, A Gower, ST O'neill, KP Kasischke, ES 174 - 184 2000-12-01 application/pdf https://escholarship.org/uc/item/3174n8q9 unknown eScholarship, University of California qt3174n8q9 https://escholarship.org/uc/item/3174n8q9 CC-BY Global Change Biology, vol 6, iss S1 Life on Land boreal carbon decomposition fire forest soil Environmental Sciences Biological Sciences Ecology article 2000 ftcdlib 2023-08-21T18:04:27Z To reconcile observations of decomposition rates, carbon inventories, and net primary production (NPP), we estimated long-term averages for C exchange in boreal forests near Thompson, Manitoba. Soil drainage as defined by water table, moss cover, and permafrost dynamics, is the dominant control on direct fire emissions. In upland forests, an average of about 10-30% of annual NPP was likely consumed by fire over the past 6500 years since these landforms and ecosystems were established. This long-term, average fire emission is much larger than has been accounted for in global C cycle models and may forecast an increase in fire activity for this region. While over decadal to century times these boreal forests may be acting as slight net sinks for C from the atmosphere to land, periods of drought and severe fire activity may result in net sources of C from these systems. Article in Journal/Newspaper permafrost University of California: eScholarship |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Life on Land boreal carbon decomposition fire forest soil Environmental Sciences Biological Sciences Ecology |
spellingShingle |
Life on Land boreal carbon decomposition fire forest soil Environmental Sciences Biological Sciences Ecology Harden, JW Trumbore, SE Stocks, BJ Hirsch, A Gower, ST O'neill, KP Kasischke, ES The role of fire in the boreal carbon budget |
topic_facet |
Life on Land boreal carbon decomposition fire forest soil Environmental Sciences Biological Sciences Ecology |
description |
To reconcile observations of decomposition rates, carbon inventories, and net primary production (NPP), we estimated long-term averages for C exchange in boreal forests near Thompson, Manitoba. Soil drainage as defined by water table, moss cover, and permafrost dynamics, is the dominant control on direct fire emissions. In upland forests, an average of about 10-30% of annual NPP was likely consumed by fire over the past 6500 years since these landforms and ecosystems were established. This long-term, average fire emission is much larger than has been accounted for in global C cycle models and may forecast an increase in fire activity for this region. While over decadal to century times these boreal forests may be acting as slight net sinks for C from the atmosphere to land, periods of drought and severe fire activity may result in net sources of C from these systems. |
format |
Article in Journal/Newspaper |
author |
Harden, JW Trumbore, SE Stocks, BJ Hirsch, A Gower, ST O'neill, KP Kasischke, ES |
author_facet |
Harden, JW Trumbore, SE Stocks, BJ Hirsch, A Gower, ST O'neill, KP Kasischke, ES |
author_sort |
Harden, JW |
title |
The role of fire in the boreal carbon budget |
title_short |
The role of fire in the boreal carbon budget |
title_full |
The role of fire in the boreal carbon budget |
title_fullStr |
The role of fire in the boreal carbon budget |
title_full_unstemmed |
The role of fire in the boreal carbon budget |
title_sort |
role of fire in the boreal carbon budget |
publisher |
eScholarship, University of California |
publishDate |
2000 |
url |
https://escholarship.org/uc/item/3174n8q9 |
op_coverage |
174 - 184 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Global Change Biology, vol 6, iss S1 |
op_relation |
qt3174n8q9 https://escholarship.org/uc/item/3174n8q9 |
op_rights |
CC-BY |
_version_ |
1776203060531429376 |