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The millennium shift: Investigating the relationship between environment and growth trends of Norway spruce and Scots pine in northern Europe

Appiah Mensah, Alex and Holmström, Emma and Petersson, Hans and Nyström, Kenneth and Mason, Euan G. and Nilsson, Urban (2021). The millennium shift: Investigating the relationship between environment and growth trends of Norway spruce and Scots pine in northern Europe. Forest Ecology and Management. 481 , 118727
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Abstract

For boreal forests in colder climates, changes in environmental conditions are hypothesised to substantially affect ecosystem processes. In this study, trends of top height growth of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst) were analysed using permanent sample plot data from more than 300 long-term experimental sites distributed from temperate zones to the boreal forest conditions in Sweden. By regression analyses, the effects of temperature-sum and precipitation-sum on top height growth were assessed in the period 1986-2018. A significant upward temporal trend in height growth was observed for both species, with the trend more pronounced after the millennium shift. The magnitude of the annual relative height growth after the millennium was about 16.92% and 9.54% higher than expected, respectively for Scots pine and Norway spruce. A potential climate response on height growth was found for both species with temperature-sum positively correlated with top height growth. No significant effect of precipitation-sum on height growth was observed for either species. Our results suggest improved growing conditions and forest sites became more productive in response to increasing temperature in the northern temperate and boreal regions. The increasing growth trends may offer shorter rotation periods and increased forest value for Norway spruce and Scots pine, coupled with contributions of boreal forests to the emerging bio-economy and the regulation of global atmospheric carbon.

Authors/Creators:Appiah Mensah, Alex and Holmström, Emma and Petersson, Hans and Nyström, Kenneth and Mason, Euan G. and Nilsson, Urban
Title:The millennium shift: Investigating the relationship between environment and growth trends of Norway spruce and Scots pine in northern Europe
Series Name/Journal:Forest Ecology and Management
Year of publishing :2021
Volume:481
Article number:118727
Number of Pages:12
Publisher:ELSEVIER
ISSN:0378-1127
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Forest Science
Keywords:Boreal forest, Picea abies, Pinus sylvestris, Growth-climate relationships, Site productivity, Rotation period
URN:NBN:urn:nbn:se:slu:epsilon-p-110449
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-110449
Additional ID:
Type of IDID
DOI10.1016/j.foreco.2020.118727
Web of Science (WoS)000607186000006
ID Code:22407
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Forest Resource Management
(NL, NJ) > Dept. of Forest Resource Management

(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:15 Feb 2021 10:43
Metadata Last Modified:15 Feb 2021 10:51

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