Author Description

Nine hundred and forty permanent 0.05 to 0.10-ha plots were established in the Vancouver Forest Region in 1971-75 to study the effects of thinning and/or fertilizing pure and mixed stands of Douglas fir and western hemlock. The core study examined the effects of various levels and combinations of thinning and nitrogen fertilization on tree growth. Subsidiary studies examined operational thinning or fertilization, and effects of thinning and fertilizing in juvenile stands. This report provides a summary of the methods of plot establishment and measurement.