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Forests 2018, 9(7), 391; https://doi.org/10.3390/f9070391

Modeling Production Processes in Forest Stands: An Adaptation of the Solow Growth Model

1
Sukachev Institute of Forest SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok 50-28, 660036 Krasnoyarsk, Russia
2
Institute of Biophysics SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Akademgorodok 50-50, 660036 Krasnoyarsk, Russia
*
Author to whom correspondence should be addressed.
Received: 28 May 2018 / Revised: 27 June 2018 / Accepted: 28 June 2018 / Published: 2 July 2018
(This article belongs to the Special Issue Simulation Modeling of Forest Ecosystems)
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Abstract

The model of forest stand growth proposed in this study is based on R. Solow’s model of economic growth. The variables introduced into the model are the “capital” (the phytomass of the non-synthesizing tree components in the stand—the stem, roots, and branches) and the “labor” (the phytomass of the photosynthesizing tree components in the stand—leaves or needles). Root phytomass is calculated with a special independent model. The process of energy production by the trees is described with the Cobb-Douglas equation. The proposed approach is used to describe growth processes in the forest stands comprising various species in Siberia and the age dynamics of net primary production. The model can explain a number of effects (such as death of the forest stand after the needles have been consumed by defoliating insects) that cannot be explained by standard logistic models. View Full-Text
Keywords: forest stands; net primary production (NPP); components of phytomass; modeling of growth processes forest stands; net primary production (NPP); components of phytomass; modeling of growth processes
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Soukhovolsky, V.; Ivanova, Y. Modeling Production Processes in Forest Stands: An Adaptation of the Solow Growth Model. Forests 2018, 9, 391.

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