Modelling forest management within a global vegetation model—Part 1: Model structure and general behaviour

V. Bellassen, G. Le Maire, J.F. Dhôte, P. Ciais and N. Viovy

Ecological Modelling, 2010, vol. 221, issue 20, 2458-2474

Abstract: This article describes a new forest management module (FMM) that explicitly simulates forest stand growth and management within a process-based global vegetation model (GVM) called ORCHIDEE. The net primary productivity simulated by ORCHIDEE is used as an input to the FMM. The FMM then calculates stand and management characteristics such as stand density, tree size distribution, tree growth, the timing and intensity of thinnings and clear-cuts, wood extraction and litter generated after thinning. Some of these variables are then fed back to ORCHIDEE. These computations are made possible with a distribution-based modelling of individual tree size. The model derives natural mortality from the relative density index (rdi), a competition index based on tree size and stand density. Based on the common forestry management principle of avoiding natural mortality, a set of rules is defined to calculate the recurrent intensity and frequency of forestry operations during the stand lifetime. The new-coupled model is called ORCHIDEE-FM (forest management).

Keywords: Forest management; Global vegetation model; ORCHIDEE; Carbon cycle (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:221:y:2010:i:20:p:2458-2474

DOI: 10.1016/j.ecolmodel.2010.07.008

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