Creating continuous areas of old forest in long-term forest planning
Harvest activities tend often to create landscapes where the old forest is fragmented into isolated patches that provide marginal conditions for species that inhabit forest interiors. This paper presents a long-range planning model designed to maximize the net present value and to create continuous...
Published in: | Canadian Journal of Forest Research |
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2000
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Online Access: | http://dx.doi.org/10.1139/x00-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/x00-103 |
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crcansciencepubl:10.1139/x00-103 2024-09-15T18:26:08+00:00 Creating continuous areas of old forest in long-term forest planning Öhman, Karin 2000 http://dx.doi.org/10.1139/x00-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/x00-103 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 30, issue 11, page 1817-1823 ISSN 0045-5067 1208-6037 journal-article 2000 crcansciencepubl https://doi.org/10.1139/x00-103 2024-07-18T04:13:30Z Harvest activities tend often to create landscapes where the old forest is fragmented into isolated patches that provide marginal conditions for species that inhabit forest interiors. This paper presents a long-range planning model designed to maximize the net present value and to create continuous patches of old forest. In this model, the spatial structure of old forest is controlled by core area and edge habitats. Core area is defined as the area of old forest that is free of edge effects from surrounding habitats. The core area requirement is set to a fixed value for each of a number of time periods, whereas the area of edge habitats, which should be as small as possible, is weighted against the net present value. The model is applied in a case study to an actual landscape consisting of 755 stands of forest in northern Sweden and solved using simulated annealing. The results show that distinct continuous patches of old forest are created when both a core area requirement and consideration of the amount of edge habitats are included in the problem formulation. The cost of creating continuous areas of old forest was found to be significant. Article in Journal/Newspaper Northern Sweden Canadian Science Publishing Canadian Journal of Forest Research 30 11 1817 1823 |
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Canadian Science Publishing |
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crcansciencepubl |
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English |
description |
Harvest activities tend often to create landscapes where the old forest is fragmented into isolated patches that provide marginal conditions for species that inhabit forest interiors. This paper presents a long-range planning model designed to maximize the net present value and to create continuous patches of old forest. In this model, the spatial structure of old forest is controlled by core area and edge habitats. Core area is defined as the area of old forest that is free of edge effects from surrounding habitats. The core area requirement is set to a fixed value for each of a number of time periods, whereas the area of edge habitats, which should be as small as possible, is weighted against the net present value. The model is applied in a case study to an actual landscape consisting of 755 stands of forest in northern Sweden and solved using simulated annealing. The results show that distinct continuous patches of old forest are created when both a core area requirement and consideration of the amount of edge habitats are included in the problem formulation. The cost of creating continuous areas of old forest was found to be significant. |
format |
Article in Journal/Newspaper |
author |
Öhman, Karin |
spellingShingle |
Öhman, Karin Creating continuous areas of old forest in long-term forest planning |
author_facet |
Öhman, Karin |
author_sort |
Öhman, Karin |
title |
Creating continuous areas of old forest in long-term forest planning |
title_short |
Creating continuous areas of old forest in long-term forest planning |
title_full |
Creating continuous areas of old forest in long-term forest planning |
title_fullStr |
Creating continuous areas of old forest in long-term forest planning |
title_full_unstemmed |
Creating continuous areas of old forest in long-term forest planning |
title_sort |
creating continuous areas of old forest in long-term forest planning |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/x00-103 http://www.nrcresearchpress.com/doi/pdf/10.1139/x00-103 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Canadian Journal of Forest Research volume 30, issue 11, page 1817-1823 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/x00-103 |
container_title |
Canadian Journal of Forest Research |
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30 |
container_issue |
11 |
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1817 |
op_container_end_page |
1823 |
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1810466580997341184 |