In recent years much of the logging in the Douglas fir region has been by the staggered setting system. Consequently, the effects of this system upon natural coniferous regeneration have become increasingly important. This study was designed to analyze the effects of setting size and environmental factors upon natural regeneration...
This study was started in 1947 to investigate the value of various types and quantities of seed source in the establishment of reproduction on cutover land, and to determine the apparent effects of various man-made and natural factors upon the rate of restocking. The man-made and natural factors to be...