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Open AccessArticle

An Area-Based Matrix Model for Uneven-Aged Forests

1
European Commission, Joint Research Centre (JRC), Institute for Environment and Sustainability (IES), Forest Resources and Climate Unit, Via E. Fermi, 2749 I-21027 Ispra, Italy
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Federal Research and Training Centre for Forests, Natural Hazards and Landscape (BFW), Institute for Forest Inventory, 1131 Vienna, Seckendorff-Gudent-Weg 8, Austria
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Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences (SLU), Box 49, 230 53 Alnarp, Sweden
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Author to whom correspondence should be addressed.
Academic Editors: Rodney J. Keenan and Eric J. Jokela
Forests 2015, 6(5), 1500-1515; https://doi.org/10.3390/f6051500
Received: 27 February 2015 / Revised: 16 April 2015 / Accepted: 21 April 2015 / Published: 30 April 2015
In this paper a new concept for modeling uneven-aged forests (UEAF) is presented. The term UEAF in this article encloses all forests that deviate from the even-aged structure. The matrix model is area-based, in that the forest under study is described by a distribution of areas over fixed state-spaces spanned by stem number and volume per hectare classes. Dynamics is introduced as transitions of areas inside the state-space during the simulation. Harvesting activities and the occurrence of calamities are explicitly handled. The model is designed to be suitable for large-scale analyses. The concept was tested in an application to Austrian National Forest Inventory (NFI) data. Results shown, including a comparison to older inventory data, indicate that it is worth further elaborating on the concept and the model. The work will be continued and in the next step the model concept will be applied in several other countries. View Full-Text
Keywords: forest model; matrix model; modeling; large-scale model; uneven-aged forests forest model; matrix model; modeling; large-scale model; uneven-aged forests
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MDPI and ACS Style

Sallnäs, O.; Berger, A.; Räty, M.; Trubins, R. An Area-Based Matrix Model for Uneven-Aged Forests. Forests 2015, 6, 1500-1515.

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