Light thinning in century-old Douglas-fir.

Abstract

A stand-improvement study in century-old Douglas-fir at the Wind River Experimental Forest provides an example of a commercial thinning that gave a substantial intermediate harvest, salvaged considerable material that would have been lost through mortality, greatly increased the net growth rate, and improved the general vigor of the stand, leaving the forest in a more healthy condition.

Citation

Steele, Robert W. 1948. Light thinning in century-old Douglas-fir. PNW Old Series Research Notes No. 43, p. 1-3