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Current distribution of older and deciduous forests as legacies from historical use patterns in a Swedish boreal landscape (1725–2007)
Södertörn University, School of Life Sciences, Environmental science. Stockholm University.
Södertörn University, School of Life Sciences, Environmental science.
Södertörn University, School of Life Sciences, Environmental science. Södertörn University, School of Life Sciences, Biology.ORCID iD: 0000-0002-5013-6462
2010 (English)In: Forest Ecology and Management, ISSN 0378-1127, E-ISSN 1872-7042, Vol. 260, no 7, 1095-1103 p.Article in journal (Refereed) Published
Abstract [en]

We combine historical maps and satellite derived data to reconstruct the development of a Swedish boreal landscape over the past 300 years. The aim is to understand legacies from past use patterns in present-day forest composition and consequences for conservation objectives from a landscape perspective. We analyze landscape development in cross-tabulation matrixes, building change trajectories. These trajectories are tested in linear models to explain the distribution of present-day landscape composition of coniferous, mixed, and deciduous forests >110 years. Of 49 tested change trajectories, 11 showed a significant association. Associations for mixed and coniferous forests were similar and linked to characteristics such as forest continuity, which characterized the studied landscape. Deciduous older forests did not show any association to forest continuity but were more likely to occur on areas that specifically shifted from forests with grazing in the 1720s to open impediment (likely indicating low tree coverage) in the 1850s. There were large shifts and spatial redistribution in ownerships over time. Use patterns and legacies varied between small- and large-scale ownership categories as well as within small-scale categories. The legacies found in the study indicate a complex origin of heterogeneous landscape elements such as older deciduous forests. Additionally, the origin of the legacies indicates a potential need to diversify conservation management based on the influence of past use patterns. Despite large inconsistencies in historical and contemporary data we argue that this type of analysis could be used to further understand the distribution of landscape elements important for conservation objectives.

Place, publisher, year, edition, pages
2010. Vol. 260, no 7, 1095-1103 p.
Keyword [en]
Ownership, Management regime, Heterogeneity, Sustainable forestry, Trajectory, Remnant habitats, Conservation
National Category
Earth and Related Environmental Sciences Social and Economic Geography
Identifiers
URN: urn:nbn:se:sh:diva-6348DOI: 10.1016/j.foreco.2010.06.018ISI: 000282040000001ScopusID: 2-s2.0-77955769490OAI: oai:DiVA.org:sh-6348DiVA: diva2:399679
Available from: 2011-02-23 Created: 2011-02-23 Last updated: 2016-09-22Bibliographically approved
In thesis
1. Cross-scale perspectives on heterogeneity in Swedish boreal forests
Open this publication in new window or tab >>Cross-scale perspectives on heterogeneity in Swedish boreal forests
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Maintaining species diversity, ecosystem functioning, and socioeconomic values requires continued ecosystem heterogeneity across scales. This thesis aims to bridge gaps between ecological theory, environmental goals, and practical application of sustainable forest management needed to maintain such heterogeneity. Included case studies of boreal Sweden concern three challenges in the cross-scale understanding of heterogeneity: matrix qualities and composition; acquiring and incorporating historical information; and interactions between forest composition and management. Paper I cover three large-scale forest companies in four boreal counties today, outlining available information on matrix qualities and composition from the companies. Papers II-III cover the village scale from 1720s–1850s–present in Dalarna County and papers IV-V the parish scale from 1860s–present in the same county. Geographic Information Systems were used to integrate historical maps with present data, perform spatiotemporal analyses, and extract data for statistical testing in primarily generalized linear models. For the practical realization of sustainable forest management, the results indicate a need for further monitoring across scales to understand matrix composition, especially in relation to small voluntary reservations in a larger spatiotemporal perspective. Historical material can provide information on temporal connectivity and spatial separation between the past and present forest composition from analysis of change trajectories respectively interacting variables. This thesis suggests that models of forest dynamics are more relevant for local implementation of sustainable forest management efforts if including interactions between forest dynamics and ownership as an approximate driver of local change.

Place, publisher, year, edition, pages
Stockholm: Department of Physical Geography and Quaternary Geology, Stockholm University, 2011. 37 p.
Series
Dissertations from the Department of Physical Geography, ISSN 1653-7211 ; 25
Keyword
sustainable forest management, biodiversity conservation, landscape analysis, historical maps, ownership
National Category
Physical Geography
Identifiers
urn:nbn:se:sh:diva-29734 (URN)978-91-7447-206-6 (ISBN)
Public defence
2011-02-11, Nordenskiöldsalen, Geovetenskapens hus, Svante Arrhenius väg 12, 13:00 (English)
Opponent
Supervisors
Note

At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 4: Manuscript. Paper 5: Manuscript.

Available from: 2016-03-14 Created: 2016-03-14 Last updated: 2016-03-14Bibliographically approved

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