1. General Model Information

Name: Dynamic Model of the "Mixed Stand/Soil" System in European Boreal Forests

Acronym: EFIMOD

Main medium: terrestrial
Main subject: forestry, populationdynamics, biogeochemistry
Organization level: Landscape
Type of model: individual-based
Main application: research
Keywords: tree, soil, forest, Norway spruce, Pendula birch, Scots pine, soil organic matter, forest ecosystem, boreal zone, climate change, single plant ecosystem


O.G. Chertov, A. C. Komarov, A.M. Tsiplianovsky
European Forest Institute,
Torikatu 34, FIN-80100 Joensuu.

Phone: +358-13-252020
Fax: +358-13-124393
email: Oleg.Chertov@efi.fi
Homepage: Oleg Chertov
European Forest Institute Project: Dynamic Modelling of Mixed Stand/Soil System in European Boreal Forests


O.G. Chertov, A. C. Komarov, A.M. Tsiplianovsky,


A single tree model of forest ecosystem (EFIMOD) has been elaborated for Scots pine, Norway spruce and Pendula birch pure and mixed stands of European boreal zone.
The model represents a realization of the concept of "single plant ecosystem" (Chertov, 1983, 1990).
EFIMOD simulates the biological cycle of every tree/soil cell in a stand.The tree models calculate total, leaves, fine roots and litter mass using a set of tree's ecological parameters describing main species-specific characteristics.
Simultaneously the soil sub model ( SOMM , Chertov & Komarov, 1996,1997) allows calculating the rate of trees' litter and soil organic matter mineralization with corresponding carbon dioxide evolution and nitrogen release for plant growth.
The model has the following procedures: regeneration; mortality
The Monte-Carlo simulations with varying initial distribution of trees on a plot have been carried out for an account the statistically significant results.

The results of first version validation (Chertov & Komarov, 1997 - IBFRA!) with various initial stand densities on different soils show quite realistic picture of tree growth, stands self-thinning and soil changes. The convergence of leaves/needles mass has been observed at various initial stand densities.
The application of EFIMOD for qualitative evaluation of climate change effects (increasing and decreasing of temperature) shows quite different reactions of pine, spruce and birch ecosystems in relation to productivity, leave mass and soil organic matter pool. There is a shift of period of first intensive self-thinning in young stands. The strong oscillation of leaves/needles mass has been observed too.

Source of Abstract: http://syseco.pgu.serpukhov.su/ecomod/EFIMOD/EFIMOD.html (link no longer valid) EFIMOD Vers.1.4 homepage Nov. 1997
see also: http://www.efi.fi/projects/dynamic_modelling_in_boreal_ecosystems/objective.html

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s):

II.3 Manuals:

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Source of publication list:EFI Projects: /dynamic modelling_in_boreal_ecosystems/publications.html by Oleg Chertov.

Chertov O.G., Komarov A.S. 1997. SOMM -- a model of soil organic matter dynamics. Ecological Modelling 94(2-3): 177-189.
Chertov O.G., Komarov A.S., G. Crocker, P. Grace, J. Klir, M. Körschens, P.R. Poulton, D. Richter. 1997. Simulating trends of soil organic carbon in seven long-term experiments using the SOMM model of the humus types. Geoderma, 28 pp.
Smith P., Smith J.U., Powlson D.S., Arah J.R.M., Chertov O.G., Komarov, A.S. et al. 1997. A comparison of the performance of nine soil organic matter models using datasets from seven long-term experiments. Geoderma. 97 pp.
Chertov O.G., Komarov A.S. 1997. Simulation model of Scots pine, Norway spruce and Silver birch ecosystems. Proc. of 6th Annual Conference of IBFRA, St. Petersburg, August 19-23 1996. Research Centre of Forest Resources, Moscow.16 pp.
Chertov O.G., Komarov A.S. 1996. Model of soil organic matter and nitrogen dynamics in natural ecosystems. In: D.S.Powlson, P.Smith & J.U.Smith, Eds. Evaluation of Soil Organic Matter Models Using Existing Long-Term Datasets. NATO ASI Vol. I 38, Springer-Verlag, Heidelberg: 231-236. In English.
Chertov O.G., Komarov A.S. 1996. Model of soil organic matter dynamics. Gerald of St.-Petersburg University. Ser. biol.(3), No 1. In Russian with English summary.
Chertov O.G., Komarov A.S. 1995. On Mathematical Theory of Soil Forming Processes. Pushchino Res. Center of Russian Acad. Sci., Pushchino. Preprint. 43 p. In English.
Chertov O.G., Komarov A.S. 1995. Dynamic Modelling of Scots pine, Norway spruce and Silver birch ecosystems in European boreal forests. EFI Research Report, Project 519. 152 p.

Accepted for publication:

Chertov O.G., Komarov A.S. 1997. Forest soils and ecosystem pollution in North-West Russia: facts and simulation. Proc. of the NATO Advanced Workshop on Atmospheric Deposition and Forest Management in Europe. Cluver Publ. 8 p.
Chertov O.G., Komarov A.S. 1997. Individual-based tree/soil model of North European forest ecosystems. Materials to XI World Forestry Congress, Antalia, Turkey. 6 p.


Chertov O.G., Komarov A.S., Tsiplianovsky A.M.Trees' nitrogen response and ecosystem dynamics: a modelling approach using EFIMOD 1.3. Ecological Modelling.
Chertov O.G. Estimation of soil organic matter pool in forests of St.-Petersburg region, Russia. In Harmon M., Krankina O., Eds. Comparison of Carbon Pools and Sequestration in Forests of US Pacific and Russian Northwest. Oxford Acad. Press. 17 p.
Chertov O.G., Komarov A.S. A system of models for an investigation of carbon dynamics in European boreal forest ecosystems. Ibid. 20 p.
Chertov, O.G. Komarov, A.S., Tsiplianovsky, A.M. A combined simulation model of Scots pine, Norway spruce and Silver birch ecosystems in European boreal zone. Forest Ecology and Management 29 pp.

Under preparation

Chertov, O., Kellomäki, S., Komarov, A., Karjalainen, T., Väisänen, H. 1997. Dynamics of organic matter in boreal soils: comparison of two models for soil organic matter. 20 p.

V. Further information in the World-Wide-Web

VI. Additional remarks

Last review of this document by: Juergen Bierwirth Wed Feb 03 14:10:25 CET 1999
Status of the document:
last modified by Joachim Benz Wed Jan 14 17:21:27 CET 2004

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