Modeling the effect of competition on tree diameter growth as applied in STEMS.

Margaret R. Holdaway

doi:10.2737/NC-GTR-94

Treesearch

Modeling the effect of competition on tree diameter growth as applied in STEMS.

Informally Refereed

Authors:

Margaret R. Holdaway

Year:

1984

Type:

General Technical Report

Station:

Northern Research Station

DOI:

https://doi.org/10.2737/NC-GTR-94

Source:

General Technical Report NC-94. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

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Abstract

The modifier function used in STEMS (Stand and Tree Evaluation and Modeling System) mathematically represents the effect that the surrounding forest community has on the growth of an individual tree. This paper 1) develops the most recent modifier function, 2) discusses its form, 3) reports the results of the analysis with biological considerations and 4) evaluates the performance of this new model.

Keywords

growth model, competition, projection system, forest growth, Lake States species

Citation

Holdaway, Margaret R. 1984. Modeling the effect of competition on tree diameter growth as applied in STEMS. General Technical Report NC-94. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station