1. General Model Information

Name: structure and functions of a single tree

Acronym: LIGNUM

Main medium: terrestrial
Main subject: forestry
Organization level: organism
Type of model: not specified
Main application:
Keywords: tree growth, crown architecture, physiological functions


Finnish Forest Research Institute
Unioninkatu 40A, FIN-00170 Helsinki, Finland
tel. +358-0-857 051, fax +358-0-625 308
Email: Risto.Sievanen@metla.fi,Jari.Perttunen@metla.fi



LIGNUM models the structure and functions of a single tree. It treats a tree as a collection of a large number of subunits that have close alikeness to the real tree parts. Hence, it covers both metabolism and crown architecture in one model. LIGNUM was constructed using object oriented modelling.

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

Reviewed articles:

Salminen, H., Saarenmaa, H., Perttunen, J., Sievänen, Nikinmaa, E. and Väkevä,J. 1994. Modelling Trees Using an Object-Oriented Scheme. Mathematical and Computer Modelling, Vol. 20, No. 8, pp.49-64.Abstract

Perttunen, J., Sievänen R., Nikinmaa, E., Salminen, H., Saarenmaa, H.,and Väkevä,J. 1996.
LIGNUM: A Tree Model Based on Simple StructuralUnits. Annals of Botany 77:87-98.

Conference presentations and posters:

Salminen, H., Saarenmaa, H., Perttunen., J., Sievänen, R., Nikinmaa, E. and Väkevä, J. 1994. Modelling Trees Using an Object-Oriented Scheme. Presentation held in Decision Support - 2001 Conference, September 12-16, 1994, Toronto, Canada.

Perttunen, J., Saarenmaa, H., Sievänen, R., Salminen, H., Pouttu, A. and Väkevä, J. 1994. Propagating the Effects of Herbivore Attack in an Object-Oriented Model of a Tree. In: Mattson, W.J. (ed.). Proceedings of the IUFRO Symposium "Mechanisms of Plant Resistance against Herbivores", Maui, Hawaii, February 2-6, 1994 (in print).

Perttunen J., Sievänen R., Nikinmaa E., Salminen H., Saarenmaa H. Väkevä. (1995).
LIGNUM: oliopohjainen puun kasvumalli. Teos: Keinoelämä - Artificial Life Tekniikkaa, luonnontiedettä, filosofiaa ja taidetta. Toim. Eero Hyvönen ja Jouko Seppänen. sivut 151-160. Publications of the Finnish Artificial Intelligence Society - FAIS, ISBN-951-22-2607-3,1995. Symposio 12.5.1995, Säätytalo, Helsinki.

Technical papers:

Perttunen, J., Sievänen, R., Nikinmaa, E., Salminen, H., Saarenmaa, H. and Väkevä, J. 1994. LIGNUM, Reference manual. METLA (Finnish Forest Research Institute), Information Systems Group, EMIT-Laboratory. 41 p.

V. Further information in the World-Wide-Web

LIGNUM Home Page

VI. Additional remarks

Last review of this document by: 4.7.96
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:45 CEST 2002

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