USDA Forest Service, Pacific Southwest Research Station
Redding Silviculture Laboratory
3644 Avtech Parkway
Redding CA 96002
CONIFERS Notes #14
Date: September 11, 2006
Re:
Modifications to whc conversion (Version 3.01)
The conversion for whc as a function of site index has been modified.
This function assumes dominant height approximately consistent with Bruce’s
Douglas-fir height growth equations. The simulator will now accept a range of site
index values (at a breast height age of 50) from 50 to 160.
Version 3.01 may be obtained from the web site:
http://www.fs.fed.us/psw/programs/ecology_of_western_forests/projects/conifers/
Martin Ritchie,
Biometrician
mritchie@fs.fed.us
530-226-2551
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