A two year study with 500 seedlings was conducted
in the harsh, drought prone southwest Oregon
environment to assess the effects of 12 soil surface
shading, mulching and vegetation control techniques on
soil temperature and moisture environments and seedling
growth. Treatments modified, to various degrees, soil
surface temperatures, reduced soil...
In the Oregon Coast Range, total biomass and biomass increment, leaf area, the relationship between leaf area and sapwood area, and patterns of growth and form of individual trees, were studied in 40 Douglas-fir (Pseudotsuga menziesfi (Mirb.)
Franco) trees from three adjacent 22 year-old plantations that had developed at different...
