Carbon emissions displacement effect of Finnish mechanical wood products by dominant tree species in a set of wood use scenarios

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http://hdl.handle.net/10138/329654

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Valsta , L & Poljatschenko , V 2021 , ' Carbon emissions displacement effect of Finnish mechanical wood products by dominant tree species in a set of wood use scenarios ' , Silva Fennica , vol. 55 , no. 1 , 10391 . https://doi.org/10.14214/sf.10391

Title: Carbon emissions displacement effect of Finnish mechanical wood products by dominant tree species in a set of wood use scenarios
Author: Valsta, Lauri; Poljatschenko, Victoria
Other contributor: University of Helsinki, Department of Forest Sciences



Date: 2021-02-25
Language: eng
Number of pages: 15
Belongs to series: Silva Fennica
ISSN: 0037-5330
DOI: https://doi.org/10.14214/sf.10391
URI: http://hdl.handle.net/10138/329654
Abstract: The carbon emissions displacement effect of Finnish logs for mechanical wood products by dominant tree species (Scots pine, Pinus sylvestris L.; Norway spruce, Picea abies (L.) H. Karst.; Birch, Betula spp.) was assessed by combining information from previous studies of current consumption patterns with displacement factors (DF) for structural construction, non-structural construction, and energy usage. We did not conduct additional life cycle analyses compared to the current literature. Our aim was to identify the factors that most extensively influence the displacement effect and to estimate the overall climate effect of Finnish logs in light of current production levels of mechanical forest industry. The analyses were based on information from both statistics and proprietary sources. Contrary to previous studies, we provide DFs by main tree species in Finland, which has been an unidentified area of research to date. Additionally, we apply a more detailed classification of structural and non-structural wood products. This study did not include effects on the forest carbon sink, as they depend case-wise on forest resources and forest management. According to our results, with current production and consumption trends, the average displacement effects for domestic Scots pine, Norway spruce, and birch logs were 1.28, 1.16, and 1.43 Mg C/Mg C, respectively. The corresponding overall annual displacement effect caused by the current production of sawn wood and wood-based panels was 12.3 Tg CO2 for Finland for the BAU scenario and varied between 8.6 and 16.3 Tg CO2 depending on the wood use scenario.
Subject: 4112 Forestry
climate change
Forest industry
Mitigation of climate change
avoided emissions
mechanical forest industry
substitution effect
wooden construction
IMPACTS
FORESTRY
LEAKAGE
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