1. General Model Information

Name: California Conifer Timber Output Simulator

Acronym: CACTOS


Main medium: terrestrial
Main subject: forestry,biogeochemistry
Organization level: forest stand
Type of model: not specified
Main application:
Keywords: forest, growth, harvest scheduling, conifer

Contact:

Lee C. Wensel
Environmental Science Policy and Management, Division of Forestry,
University of California,
Berkeley, CA 94720-3114

email: wensel@nature.berkeley.edu

Office of Technology Licensing
2150 Shattuck Avenue
Suite 510
Berkeley
CA 94704
Phone: +1 415 643 7201
Fax :
email: dahall@uclink.berkeley.edu


Authors:

Author(s):

Abstract:

Developed at the University of California, CACTOS is designed to model the changes that take place in young-growth conifer stands in the mixed conifer regions of Northern California. It requires the user to enter a stand description and allows students to perform various operations and print out various descriptive reports relating to the stand. It has an enhanced set of prediction equations for more accurate growth projections. Also has an on-line tutorial running in a second window. This program allows for the customizing of reports through its interface with "write" or "note pad" commands.
The primary purpose of CACTOS is to predict yields to alternative harvesting practices.

Author of the abstract:

Centre for Computer-based Learning in Land Use and Environmental Sciences (CLUES) CLUES


II. Technical Information

II.1 Executables:

Operating System(s): DOS, Windows 3.1

II.2 Source-code:

Programming Language(s):

II.3 Manuals:



II.4 Data:

CACTOS may be acquisited with charge from Lee Wensel.

III. Mathematical Information


III.1 Mathematics


III.2 Quantities


III.2.1 Input

III.2.2 Output


IV. References

Wensel, L.C.; G.S. Biging
The CACTOS system for individual-tree growth simulation in the mixed conifer forests of California. In: Ek, A.R.; Shifley, S.R.; Burk, T.E. (eds) Forest Growth Modeling and Prediction. IUFRO conference, 1987, Minneapolis, MI, vol. 1, p. 175-183.


V. Further information in the World-Wide-Web

  • CACTOS 3.4 at the CLUES database
  • CACTOS Home Page

    VI. Additional remarks

    CACTOS is described also in the "Guide to computer-based analytical tools for implementing national forest plans" by E.G. Schuster, L.A.Leefers, and J.E.Thompson 1993 (USDA-Forest Service-Intermountain Research Station-General Technical Report INT-296).
    Last review of this document by: October, 19th 1997 T. Gabele and M. Sonntag
    Status of the document:
    last modified by Tobias Gabele Wed Aug 21 21:44:40 CEST 2002

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