Forest growth in the Douglas fir region.

Abstract

A study of forest growth in western Oregon and western Washington, the so-called Douglas fir region, was made in 1934-35 by the Pacific Northwest Forest Experiment Station. This is one phase of the Nation-wide forest survey undertaken by the Department of Agriculture under authority of the McSweeney-McNary Forest Research Act. Other phases of the survey are an inventory of forest-land areas and timber volumes, a study of forest depletion through cutting and through loss by fire, insect attack, and disease, and a study of present and prospective wood requirements. Material previously published on this regional survey has included nothing regarding growth except certain data for the pulpwood species. Results of the growth phase are presented here for the region as a whole and for each of the 11 units (figure 1) into which it was divided for survey purposes.

Citation

Meyer, W.H.; Briegleb, P.A. 1936. Forest growth in the Douglas fir region. PNW Old Series Research Notes No. 20, p. 1-28