Predicting regeneration establishment with the Prognosis Model

Dennis Ferguson; Clinton E. Carlson

Treesearch

Predicting regeneration establishment with the Prognosis Model

Informally Refereed

Authors:

Dennis Ferguson, Clinton E. Carlson

Year:

1993

Type:

Research Paper

Station:

Rocky Mountain Research Station

Source:

Res. Pap. INT-RP-467. Ogden, UT: U.S. Department of Agriculture, Forest Service, lntermountain Research Station. 54 p.

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Download (PDF 3.70 MB): https://research.fs.usda.gov/download/treesearch/65323.pdf

Abstract

Conifer establishment following regeneration timber harvests is predicted by version 2 of the Regeneration Establishment Model, a submodel of the Prognosis Model. The regeneration model covers 1 O species for forests in Montana, central Idaho, and northern Idaho. Most harvest and site preparation methods can be simulated so that alternative treatments can be evaluated. Also included in the model is the influence of western spruce budworm (Choristoneura occidentalis) on regeneration success. The model predicts the probability of stocking, seedling density, species composition, and seedling heights 2 to 20 years after harvest. This paper describes the study design, equation development, model formulation, and model behavior for the Regeneration Establishment Model.

Keywords

forest succession, forest planning, western spruce budworm, Choristoneura occidentalis, conifers, Montana, Idaho

Citation

Ferguson, Dennis E.; Carlson, Clinton E. 1993. Predicting regeneration establishment with the Prognosis Model. Res. Pap. INT-RP-467. Ogden, UT: U.S. Department of Agriculture, Forest Service, lntermountain Research Station. 54 p.