Computation of Southern Pine Site Index Using a TI-59 Calculator

Robert M. Farrar

doi:10.2737/SO-GTR-48

Treesearch

Computation of Southern Pine Site Index Using a TI-59 Calculator

Informally Refereed

Authors:

Robert M. Farrar

Year:

1983

Type:

General Technical Report

Station:

Southern Research Station

DOI:

https://doi.org/10.2737/SO-GTR-48

Source:

Gen. Tech. Rep. SO-48. New Orleans, LA: U.S. Dept of Agriculture, Forest Service, Southern Forest Experiment Station. 8 p.

Download (PDF 1.03 MB)

Download (PDF 1.03 MB): https://research.fs.usda.gov/download/treesearch/1751.pdf

Abstract

A program is described that permits computation of site index in the field using a Texas Instruments model TI-59 programmable, hand-held, battery-powered calculator. Based on a series of equations developed by R.M. Farrar, Jr., for the site index curves in USDA Miscellaneous Publication 50, the program can accommodate any index base age, tree age, and height within wide limits for the four principal southern pine species: loblolly (Pinus taeda L.), longleaf (P. palustris Mill.), shortleaf (P. enchinata Mill.) and slash pine (P. elliottii

Citation

Guldin, Richard W.; Farrar, Robert M., Jr. 1983. Computation of Southern Pine Site Index Using a TI-59 Calculator. Gen. Tech. Rep. SO-48. New Orleans, LA: U.S. Dept of Agriculture, Forest Service, Southern Forest Experiment Station. 8 p.