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Publication Information

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Title: Biological growth functions describe published site index curves for Lake States timber species.

Author: Lundgren, Allen L.; Dolid, William A.;

Date: 1970

Source: Research Paper NC-36. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

Publication Series: Research Paper (RP)

Description: Two biological growth functions, an exponential-monomolecular function and a simple monomolecular function, have been fit to published site index curves for 11 Lake States tree species: red, jack, and white pine, balsam fir, white and black spruce, tamarack, white-cedar, aspen, red oak, and paper birch. Both functions closely fit all published curves except those for white spruce and are recommended for use wherever mathematical functions can be conveniently used. A table of height factors is presented to simplify hand calculations of height and construction of new site index curves from these equations.

Keywords: site index curves, Lake States, red pine, jack pine, white pine, balsam fir, white spruce, black spruce, tamarack, white cedar, aspen, red oak, paper birch

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
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Citation:


Lundgren, Allen L.; Dolid, William A. 1970. Biological growth functions describe published site index curves for Lake States timber species. Research Paper NC-36. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

 


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