At What Scales and Why Does Forest Structure Vary in Naturally Dynamic Boreal Forests? An Analysis of Forest Landscapes on Two Continents

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dc.contributor.author Kulha, Niko Aleksi
dc.contributor.author Pasanen, Leena
dc.contributor.author Holmström, Lasse
dc.contributor.author Grandpre, Louis de
dc.contributor.author Kuuluvainen, Timo Tapio
dc.contributor.author Aakala, Tuomas
dc.date.accessioned 2019-06-14T08:04:01Z
dc.date.available 2019-06-14T08:04:01Z
dc.date.issued 2019-06
dc.identifier.citation Kulha , N A , Pasanen , L , Holmström , L , Grandpre , L D , Kuuluvainen , T T & Aakala , T 2019 , ' At What Scales and Why Does Forest Structure Vary in Naturally Dynamic Boreal Forests? An Analysis of Forest Landscapes on Two Continents ' , Ecosystems , vol. 22 , no. 4 , pp. 709-724 . https://doi.org/10.1007/s10021-018-0297-2
dc.identifier.other PURE: 115563767
dc.identifier.other PURE UUID: 748f617b-5107-4119-a2ee-8bf56ed690b4
dc.identifier.other Scopus: 85053523994
dc.identifier.other WOS: 000468963200002
dc.identifier.other ORCID: /0000-0003-0160-6410/work/58507802
dc.identifier.uri http://hdl.handle.net/10138/303115
dc.description.abstract Identifying the scales of variation in forest structures and the underlying processes are fundamental for understanding forest dynamics. Here, we studied these scale-dependencies in forest structure in naturally dynamic boreal forests on two continents. We identified the spatial scales at which forest structures varied, and analyzed how the scales of variation and the underlying drivers differed among the regions and at particular scales. We studied three 2kmx2km landscapes in northeastern Finland and two in eastern Canada. We estimated canopy cover in contiguous 0.1-ha cells from aerial photographs and used scale-derivative analysis to identify characteristic scales of variation in the canopy cover data. We analyzed the patterns of variation at these scales using Bayesian scale space analysis. We identified structural variation at three spatial scales in each landscape. Among landscapes, the largest scale of variation showed the greatest variability (20.1-321.4ha), related to topography, soil variability, and long-term disturbance history. Superimposed on this large-scale variation, forest structure varied at similar scales (1.3-2.8ha) in all landscapes. This variation correlated with recent disturbances, soil variability, and topographic position. We also detected intense variation at the smallest scale analyzed (0.1ha, grain of our data), partly driven by recent disturbances. The distinct scales of variation indicated hierarchical structure in the landscapes studied. Except for the large-scale variation, these scales were remarkably similar among the landscapes. This suggests that boreal forests may display characteristic scales of variation that occur somewhat independent of the tree species characteristics or the disturbance regime. en
dc.format.extent 16
dc.language.iso eng
dc.relation.ispartof Ecosystems
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject 4112 Forestry
dc.subject forest dynamics
dc.subject Canopy cover
dc.subject aerial photography
dc.subject bayesian inference
dc.subject eastern Canada
dc.subject northern Fennoscandia
dc.subject cap dynamics
dc.subject black spruce
dc.subject fire history
dc.subject tree
dc.subject stands
dc.subject productivity
dc.subject growth
dc.subject patterns
dc.subject regeneration
dc.subject fennoscandia
dc.title At What Scales and Why Does Forest Structure Vary in Naturally Dynamic Boreal Forests? An Analysis of Forest Landscapes on Two Continents en
dc.type Article
dc.contributor.organization Department of Forest Sciences
dc.contributor.organization Boreal forest dynamics and biodiversity research group
dc.contributor.organization Forest Ecology and Management
dc.contributor.organization Forest Economics, Business and Society
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1007/s10021-018-0297-2
dc.relation.issn 1432-9840
dc.rights.accesslevel openAccess
dc.type.version acceptedVersion
dc.relation.funder Unknown funder
dc.relation.grantnumber

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