Carbon forestry is surprising

Abstract Background Forestry offers possibilities to sequestrate carbon in living biomass, deadwood and forest soil, as well as in products prepared of wood. In addition, the use of wood may reduce carbon emissions from fossil fuels. However, harvesting decreases the carbon stocks of forests and inc...

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Main Author: Timo Pukkala
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2018-03-01
Series:Forest Ecosystems
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40663-018-0131-5
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author Timo Pukkala
author_facet Timo Pukkala
author_sort Timo Pukkala
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description Abstract Background Forestry offers possibilities to sequestrate carbon in living biomass, deadwood and forest soil, as well as in products prepared of wood. In addition, the use of wood may reduce carbon emissions from fossil fuels. However, harvesting decreases the carbon stocks of forests and increases emissions from decomposing harvest residues. Methods This study used simulation and optimization to maximize carbon sequestration in a boreal forest estate consisting of nearly 600 stands. A reference management plan maximized net present value and the other plans maximized the total carbon balance of a 100-, 200- or 300-year planning horizon, taking into account the carbon balances of living forest biomass, dead organic matter, and wood-based products Results Maximizing carbon balance led to low cutting level with all three planning horizons. Depending on the time span, the carbon balance of these schedules was 2 to 3.5 times higher than in the plan that maximized net present value. It was not optimal to commence cuttings when the carbon pool of living biomass and dead organic matter stopped increasing after 150–200 years. Conclusions Letting many mature trees to die was a better strategy than harvesting them when the aim was to maximize the long-term carbon balance of boreal Fennoscandian forest. The reason for this conclusion was that large dead trees are better carbon stores than harvested trees. To alter this outcome, a higher proportion of harvested trees should be used for products in which carbon is stored for long time.
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spelling doaj.art-b68dfa6343a54165941142a7c3053fe72023-01-02T13:41:26ZengKeAi Communications Co., Ltd.Forest Ecosystems2197-56202018-03-015111110.1186/s40663-018-0131-5Carbon forestry is surprisingTimo Pukkala0University of Eastern FinlandAbstract Background Forestry offers possibilities to sequestrate carbon in living biomass, deadwood and forest soil, as well as in products prepared of wood. In addition, the use of wood may reduce carbon emissions from fossil fuels. However, harvesting decreases the carbon stocks of forests and increases emissions from decomposing harvest residues. Methods This study used simulation and optimization to maximize carbon sequestration in a boreal forest estate consisting of nearly 600 stands. A reference management plan maximized net present value and the other plans maximized the total carbon balance of a 100-, 200- or 300-year planning horizon, taking into account the carbon balances of living forest biomass, dead organic matter, and wood-based products Results Maximizing carbon balance led to low cutting level with all three planning horizons. Depending on the time span, the carbon balance of these schedules was 2 to 3.5 times higher than in the plan that maximized net present value. It was not optimal to commence cuttings when the carbon pool of living biomass and dead organic matter stopped increasing after 150–200 years. Conclusions Letting many mature trees to die was a better strategy than harvesting them when the aim was to maximize the long-term carbon balance of boreal Fennoscandian forest. The reason for this conclusion was that large dead trees are better carbon stores than harvested trees. To alter this outcome, a higher proportion of harvested trees should be used for products in which carbon is stored for long time.http://link.springer.com/article/10.1186/s40663-018-0131-5Carbon balanceCarbon sequestrationDecomposition modelWood product modelBoreal forest
spellingShingle Timo Pukkala
Carbon forestry is surprising
Forest Ecosystems
Carbon balance
Carbon sequestration
Decomposition model
Wood product model
Boreal forest
title Carbon forestry is surprising
title_full Carbon forestry is surprising
title_fullStr Carbon forestry is surprising
title_full_unstemmed Carbon forestry is surprising
title_short Carbon forestry is surprising
title_sort carbon forestry is surprising
topic Carbon balance
Carbon sequestration
Decomposition model
Wood product model
Boreal forest
url http://link.springer.com/article/10.1186/s40663-018-0131-5
work_keys_str_mv AT timopukkala carbonforestryissurprising