Related Utilities

SICAL

This program computes site index given heights and breast height agesfor Douglas-fir and Ponderosa Pine using the curves build into the various versions of ORGANON (Bruce 1981, Hann and Scrivani 1987, King 1966).

Download SICAL (25K 12/11/97)

SICALC

This program is a more general version of SICAL and computes site index and top heights for 17 curves for 10 species in the Pacific Northwest. It will also draw a curve of the top height over age.

Download SICALC (104K 12/22/97)

ORGVOL

This program computes volumes (cubic and board foot) using the methods in the SWO and WWV versions of the ORGANON growth model. It requires tree's species number (see below), DBH, total height and crown ratio (optional). The only difference between th is programs and the ORGANON model is that this program does not require crown ratio. Board foot volumes are computed for conifers only. The SWO and WWV volume and taper equations are the same but use different breast height bark thickness equations. Th is program has not been updated to include the equations on the SMC version of ORGANON.

Download ORGVOL (62K 12/11/97)

ORGDIB

This program uses the taper equations for Walters and Hann (1986) (which are used in SWO and WWV ORGANON) to compute upper stem diameters inside bark for conifers only given a tree's species number (see below), DBH, total height and crown ratio (requir ed).

The SWO and WWV taper equations are the same but use different breast height bark thickness equations. This program has not been updated to include the equations on the SMC version of ORGANON. Species Number equivalents used in ORGANON:

Program ORGDIB (41K 12/11/97)

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Contact: organon@oregonstate.edu