An improved growth intercept method for estimating site index of red pine.

David H. Alban

Treesearch

An improved growth intercept method for estimating site index of red pine.

Informally Refereed

Authors:

David H. Alban

Year:

1972

Type:

Research Paper

Station:

Northern Research Station

Source:

Research Paper NC-80. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

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Download (PDF 1.31 MB): https://research.fs.usda.gov/download/treesearch/10601.pdf

Abstract

Equations for predicting red pine (Pinus resinosa Ait.) site index from various internode lengths were developed from ring counts on sectioned trees form 69 natural stands in Minnesota. The precision of estimating site index was much improved by measuring the 5-year growth intercept beginning at 7 feet above the ground rather than at the conventional breast height. The growth intercept equation developed from natural stands in Minnesota is shown to be applicable to red pine plantations in Minnesota, New York, and Connecticut.

Keywords

Pinus resinosa, red pine, internode length, plantations, stem analysis

Citation

Alban, David H. 1972. An improved growth intercept method for estimating site index of red pine. Research Paper NC-80. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station