1. General Model Information

Name: Forest model

Acronym: GROMIT

Main medium: terrestrial
Main subject: forestry
Organization level: organism, population, ecosystem
Type of model: not specified
Main application:
Keywords: tree growth, spruce, climate change, management, mensuration, pipe model


Tim Randle
Forestry Commission Research Division, FC
Alice Holt Lodge
Farnham, Surrey, GU10 4LH
United Kingdom
Tel.: +44-1420-22255
Fax: +44-1420-23653
Email: randle@fcrd.gov.uk


Tony Ludlow and Tim Randle


GROMIT simulates growth and mensuration at an individual tree level, calculating carbon and water balance. It was initially developed for coniferous forest plantations, mainly Sitka spruce in England.
Empirically leaf photosynthesis is calculated form incident radiation and temperature, and integrated over each individual crown. Allocation of carbon follows the pipe model approach.
The model can be applied successfully not only for mensuration purposes but also for climate change questions and long-term effects thereof on forests.

Author of Abstract:M. Sonntag

II. Technical Information

II.1 Executables:

Operating System(s):

II.2 Source-code:

Programming Language(s): Fortran

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

Ludlow, A.R.; Randle, T.J. 1991.
GROMIT-growth model for individual trees. Manuscript, pp 56.


V. Further information in the World-Wide-Web

VI. Additional remarks

GROMIT was recently successfully applicated in the EU-project LTEEF ("Long Term Effects of CO2 increase and climate change on European Forests", project-leader G.M.J. Mohren). It is also applied within the ongoing European project ECOCRAFT (climate change impacts on European forests , project leader: P.G. Jarvis).

Last review of this document by: M. Sonntag : October, 18th 1997
Status of the document:
last modified by Tobias Gabele Wed Aug 21 21:44:44 CEST 2002

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