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Mixing effects on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) productivity along a climatic gradient across Europe

Ruiz-Peinado, Ricardo and Pretzsch, Hans and Lof, Magnus and Heym, Michael and Bielak, Kamil and Aldea, Jorge and Barbeito, Ignacio and Brazaitis, Gediminas and Drössler, Lars and Godvod, Ksistof and Granhus, Aksel and Holm, Stig-Olof and Jansons, Aris and Makrickiene, Ekaterina and Metslaid, Marek and Nothdurft, Arne and Reventlow, Ditlev Otto Juel and Sitko, Roman and Stankeviciene, Gintare and del Rio, Miren (2021). Mixing effects on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) productivity along a climatic gradient across Europe. Forest Ecology and Management. 482 , 118834
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Abstract

Mixed-species stands have been found to be more productive than would be expected from the performance of their component species in monocultures due to facilitation and complementarity between species, although these interactions depend on the combination of species present. Our study focuses on monospecific and mixed species stands of Scots pine and Norway spruce using 20 triplets established in nine countries along a climatic gradient across Europe. Differences in mean tree and stand characteristics, productivity and stand structure were assessed. Basal area increment in mixed stands was 8% higher than expected while volume increment was only 2% greater. Scots pine trees growing in mixed-species stands showed 11% larger quadratic mean diameter, 7% larger dominant diameter, 17% higher basal area and 25% higher stand volume than trees growing in mono specific stands. Norway spruce showed only a non-significant tendency to lower mean values of diameters, heights, basal area, as well standing volume in mixtures than monocultures. Stand structure indices differed between mixed stands and monocultures of Scots pine showing a greater stratification in mixed-species stands. Furthermore, the studied morphological traits showed little variability for trees growing in monospecific stands, except for diameter at breast height, crown length and crown length ratio. For trees growing in mixed stands, all the morphological traits of the trees were identified as different. Some of these morphological traits were associated with relative productivity. Nevertheless, relative productivity in mixed-species stands was not related to site conditions.

Authors/Creators:Ruiz-Peinado, Ricardo and Pretzsch, Hans and Lof, Magnus and Heym, Michael and Bielak, Kamil and Aldea, Jorge and Barbeito, Ignacio and Brazaitis, Gediminas and Drössler, Lars and Godvod, Ksistof and Granhus, Aksel and Holm, Stig-Olof and Jansons, Aris and Makrickiene, Ekaterina and Metslaid, Marek and Nothdurft, Arne and Reventlow, Ditlev Otto Juel and Sitko, Roman and Stankeviciene, Gintare and del Rio, Miren
Title:Mixing effects on Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.) productivity along a climatic gradient across Europe
Series Name/Journal:Forest Ecology and Management
Year of publishing :2021
Volume:482
Article number:118834
Number of Pages:13
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:Monospecific and mixed-species stands, Overyielding, Stand structure, Complementarity, Triplet approach
URN:NBN:urn:nbn:se:slu:epsilon-p-111088
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111088
Additional ID:
Type of IDID
DOI10.1016/j.foreco.2020.118834
Web of Science (WoS)000617950400003
ID Code:22802
Deposited By: SLUpub Connector
Deposited On:19 Mar 2021 10:23
Metadata Last Modified:19 Mar 2021 10:31

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