Simulating coarse-scale vegetation dynamics using the Columbia River Basin Succession Model-CRBSUM

Robert E. Keane; Donald G. Long; James Menakis; Wendel J. Hann; Collin D. Bevins

Treesearch

Simulating coarse-scale vegetation dynamics using the Columbia River Basin Succession Model-CRBSUM

Informally Refereed

Authors:

Robert E. Keane, Donald G. Long, James Menakis, Wendel J. Hann, Collin D. Bevins

Year:

1996

Type:

General Technical Report

Station:

Rocky Mountain Research Station

Source:

Gen. Tech. Rep. INT-GTR-340. Ogden, UT: U.S. Department of Agriculture, Forest Service, lntermountain Research Station. 50 p.

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Download (PDF 8.44 MB): https://research.fs.usda.gov/download/treesearch/65321.pdf

Abstract

The Columbia River Basin SUccession Model (CRBSUM) simulates broad-scale landscape changes as a consequence of various land management policies. CRBSUM is a spatially explicit, deterministic model with stochastic properties that simulates changes in vegetation cover types and structural stages on landscapes over long periods. CRBSUM was used to simulate coarse-scale landscape changes in the Interior Columbia River Basin as a result of four management scenarios called management futures. CRBSUM results have an inherent 1 to 5 percent variability because of the stochastic structure of the model. Sensitivity analysis results suggest moderate changes in disturbance probabilities (25 percent increase) will only slightly affect simulated results.

Keywords

succession modeling, stochastic model, Interior Columbia River Basin, succession pathways, GIS, Loki simulation system, computer model

Citation

Keane, Robert E.; Long, Donald G.; Menakis, James P.; Hann, Wendel J.; Bevins, Collin D. 1996. Simulating coarse-scale vegetation dynamics using the Columbia River Basin Succession Model-CRBSUM. Gen. Tech. Rep. INT-GTR-340. Ogden, UT: U.S. Department of Agriculture, Forest Service, lntermountain Research Station. 50 p.