Site preparation for successful regeneration, a webinar presented to WFFA, May 2021, by Dick Hopkins.
Well begun is half done - proper site preparation and early vegetation control. Webinar presented by Matt Provencher. Washington State University, 2020. 1 hour, 13 minutes.
Thinning: an important timber management tool. Oregon State University, Extension Service. 1983. PNW 184.
Thinning systems for western Oregon Douglas-fir stands. Oregon State University, Extension Service. 2003. EC 1132.
Thinning young Douglas-fir west of the Cascades for timber and wildlife. Washington State University, Extension Service. 2003. EB 1927.
Competition and density in woodland stands. Oregon State University, Extension Service, EM 9206. 2018.
Variable density thinning. A webinar presented by Matt Provencher. Sponsored by WSU Extension Forestry, 2021. 1 hour, 20 minutes.
A guide to variable density thinning using skips and gaps. Leslie Brodie and Constance Harrington. USDA Forest Service, General Technical Report PNW-989. 2020. 37 pages.
Let's mix it up! The benefits of variable density thinning. Constance Harrington. USDA Forest Service, Pacific Northwest Research Station, Sciences Findings 112. 2009. 5 p.
Conifer pruning basics for family forest landowners. Washington State University, Extension Service. EB 1984.