Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden
The paper addresses the problem of estimating future stand development in heterogeneously structured forests in Sweden; specifically, multi-layered spruce stands and mature pine stands with advanced spruce undergrowth. We first introduce various supporting concepts and models with their empirical da...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2013-11-01
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| Series: | Journal of Forest Science |
| Subjects: | |
| Online Access: | https://jfs.agriculturejournals.cz/artkey/jfs-201311-0005_application-and-limitations-of-growth-models-for-silvicultural-purposes-in-heterogeneously-structured-forest-in.php |
| _version_ | 1797898758183190528 |
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| author | L. Drössler N. Fahlvik B. Elfving |
| author_facet | L. Drössler N. Fahlvik B. Elfving |
| author_sort | L. Drössler |
| collection | DOAJ |
| description | The paper addresses the problem of estimating future stand development in heterogeneously structured forests in Sweden; specifically, multi-layered spruce stands and mature pine stands with advanced spruce undergrowth. We first introduce various supporting concepts and models with their empirical databases, model validation and constraints. Secondly, Swedish single-tree growth functions designed for more heterogeneously structured forest are tested using data from inventory plots, a thinning experiment in an uneven-aged forest stand, and yield plots in pristine forest. Future growth of a managed, multi-layered forest was simulated and is compared with other selected functions. Simulation results, expected errors and time constraints are discussed. For most models, projected stand basal area growth deviated 10-20% from the observed growth in individual stands. In single stands, the deviation ranged from 0 to 60%. Validation periods were often 5-15 years, sometimes even more than 30 years. For Swedish single-tree basal area growth functions, on average, a 5% overestimate was found for heterogeneously structured forest across Sweden. Observed growth in a boreal single-tree selection forest was underestimated by 12.5% fifteen years after thinning from above. |
| first_indexed | 2024-04-10T08:19:14Z |
| format | Article |
| id | doaj.art-28ddc8d8d9f04b0eaca2da2e4a4e89a5 |
| institution | Directory Open Access Journal |
| issn | 1212-4834 1805-935X |
| language | English |
| last_indexed | 2024-04-10T08:19:14Z |
| publishDate | 2013-11-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Journal of Forest Science |
| spelling | doaj.art-28ddc8d8d9f04b0eaca2da2e4a4e89a52023-02-23T03:42:27ZengCzech Academy of Agricultural SciencesJournal of Forest Science1212-48341805-935X2013-11-01591145847310.17221/33/2013-JFSjfs-201311-0005Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in SwedenL. Drössler0N. Fahlvik1B. Elfving2Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Alnarp, SwedenSouthern Swedish Forest Research Centre, Swedish University of Agricultural Sciences, Alnarp, SwedenDepartment of Forest Ecology and Management, Swedish University of Agricultural Sciences,, Umeå, SwedenThe paper addresses the problem of estimating future stand development in heterogeneously structured forests in Sweden; specifically, multi-layered spruce stands and mature pine stands with advanced spruce undergrowth. We first introduce various supporting concepts and models with their empirical databases, model validation and constraints. Secondly, Swedish single-tree growth functions designed for more heterogeneously structured forest are tested using data from inventory plots, a thinning experiment in an uneven-aged forest stand, and yield plots in pristine forest. Future growth of a managed, multi-layered forest was simulated and is compared with other selected functions. Simulation results, expected errors and time constraints are discussed. For most models, projected stand basal area growth deviated 10-20% from the observed growth in individual stands. In single stands, the deviation ranged from 0 to 60%. Validation periods were often 5-15 years, sometimes even more than 30 years. For Swedish single-tree basal area growth functions, on average, a 5% overestimate was found for heterogeneously structured forest across Sweden. Observed growth in a boreal single-tree selection forest was underestimated by 12.5% fifteen years after thinning from above.https://jfs.agriculturejournals.cz/artkey/jfs-201311-0005_application-and-limitations-of-growth-models-for-silvicultural-purposes-in-heterogeneously-structured-forest-in.phpcontinuous cover forestryheterogeneous forest structureforest growthstand developmentgrowth modelsheurekasweden |
| spellingShingle | L. Drössler N. Fahlvik B. Elfving Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden Journal of Forest Science continuous cover forestry heterogeneous forest structure forest growth stand development growth models heureka sweden |
| title | Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden |
| title_full | Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden |
| title_fullStr | Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden |
| title_full_unstemmed | Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden |
| title_short | Application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in Sweden |
| title_sort | application and limitations of growth models for silvicultural purposes in heterogeneously structured forest in sweden |
| topic | continuous cover forestry heterogeneous forest structure forest growth stand development growth models heureka sweden |
| url | https://jfs.agriculturejournals.cz/artkey/jfs-201311-0005_application-and-limitations-of-growth-models-for-silvicultural-purposes-in-heterogeneously-structured-forest-in.php |
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