1. General Model Information

Name: North Queensland Rainforest Management model

Acronym: NORM

Main medium: terrestrial
Main subject: biogeochemistry, hydrology
Organization level: Organisms
Type of model: individual-based
Main application:
Keywords: growth, forest, non-spatial, sinufis/gle-tree, tree-list,


Jerome K (Jerry) Vanclay

School of Resource Science and Management
Southern Cross University
PO Box 157, Lismore NSW 2480, Australia

Phone: +61 2 66203147
Fax: +61 2 6621 2669
email: JVanclay@scu.edu.au
Homepage: http://www.scu.edu.au/schools/rsm/courses/forest.html


Jerome K (Jerry) Vanclay


contents of the model
NORM is a forest stand growth model (non-spatial sinufis/gle tree model) based on the tree-list approach, and designed to (1) predict sustainable timber harvests from the rainforests of north Queensland, and to (2) assess the impacts on those forests of timber harvesting. The model uses recognises over 200 tree species, using 41 equations to predict diameter increments of different species groups, and several equations to predict mortality and recruitment in different species groups. Full details of the model are given in "Modelling Forest Growth and Yield" by J.K. Vanclay., CAB International, 1994, ISBN 0 85198 913 6
principles of the model
Models individual trees on a per-hectare basis, with separate equations to predict tree growth (diameter increment), mortality, and recruitment (at 10 cm diameter). The model deals with growth and mortality of all/any species, but only predicts recruitment of 100 species. Recruitment is modelled in two stages: first predict the probability that there is any recruitment of the target species, then predict the expected amount given that some is known to occur. There are also functions to predict commercial value, defect, volumes, etc.

II. Technical Information

II.1 Executables:

Operating System(s): Unix; any system supporting standard Fortran 77 RAM required: application-dependent Disc space: application-dependent Portability onto other systems: MIPS computer running UNIX V

II.2 Source-code:

Programming Language(s): Fortran 77

II.3 Manuals:

Complete model documentation: Vanclay J.K.: Modelling Forest Growth and Yield, CAB International (1994). ISBN 0 85198 913 6.

II.4 Data:

III. Mathematical Information

III.1 Mathematics

III.2 Quantities

III.2.1 Input

III.2.2 Output

IV. References

Vanclay, J.K., 1994.Modelling Forest Growth and Yield CAB International, Wallingford,1994, ISBN 0 85198 913 6.

V. Further information in the World-Wide-Web

VI. Additional remarks

NORM is used as the basis for planning systems in Queensland

Additional information
Last review of this document by: R. Patzak : 2. October 1997 -
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:46 CEST 2002

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