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STAND RELEASE & PRE-COMMERCIAL THINNING PROJECT
When attempting to establish a new generation of trees, forest owners face two fundamental tasks that can become increasingly tricky: seedling release and pre-commercial thinning.
Seedlings planted after harvest face steep competition for light, nutrients, water, and space from each other, from native understory plants, and from invasive species. As a young stand ages, the trees can begin to compete with one another for the same limited resources. Landowners have a number of options for reducing competition for resources: stand release, when the plantation is young, or pre-commercial thinning, as the plantation ages. NNRG is collaborating with Washington forest owners to test the effectiveness of different seedling release and pre-commercial thinning options. Some projects have been completed, others are underway or will begin in summer 2020.
Click on the links below to see the latest information about each project.
New plantation stand release from competing scotch broom
Young Douglas-fir stand PCT
HANSON FAMILY FOREST
Young hardwood stand PCT
Young Douglas-fir/Western redcedar stand release from competing Himalayan blackberry
WILD THYME FARM
Young Douglas-fir/western red cedar plantation stand release from competing brush
TWO CATS TIMBER
Young red alder stand PCT
CAPITOL LAND TRUST
Young mixed hardwood/conifer stand PCT
Western Sustainable Agriculture Research and Education is supporting the research and training provided through this project with grant #OW19-350 – Seedling Release and Young-Stand Thinning as a Way to Increase Forest Health and Production