Pacific Northwest Research Station

Title: Tree value system: users guide.

Author: Ayer Sachet, J.K.; Briggs, D.G.; Fight, R.D.

Date: 1989

Source: Gen. Tech. Rep. PNW-GTR-234. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 45 p

Station ID: GTR-PNW-234

Description: This paper instructs resource analysts on use of the Tree Value System (TREEVAL). TREEVAL is a microcomputer system of programs for calculating tree or stand values and volumes based on predicted product recovery. Designed for analyzing silvicultural decisions, the system can also be used for appraisals and for evaluating log bucking. The system calculates results based either on optimized tree bucking or on simulated bucking from user input. Currently, TREEVAL contains data for young-growth Douglasfir (Pseudotsuga menziesii (Mirb.) Franco var. menziesii); however, other species can also be analyzed. The recovery equations now in the TREEVAL model are appropriate for natural stands but are not appropriate for plantations. Steps are explained for running the system on an IBM compatible microcomputer. The programs and data files are described.

Keywords: Tree value, tree volume, product recovery, software, microcomputer, users guide

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Citation

Ayer Sachet, J.K.; Briggs, D.G.; Fight, R.D.  1989.  Tree value system: users guide..   Gen. Tech. Rep. PNW-GTR-234. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 45 p.