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Filtering by: Subject Douglas fir -- Spacing -- Washington (State) Committee Member Stone, Jeff

Evaluating the effectiveness of commonly used herbaceous weed control regimes in a Pacific Northwest conifer plantation

Creator:

Dinger, Eric

Abstract:

Early in the establishment of Pacific Northwest conifer plantations, herbaceous weeds often decrease seedling growth through competition for soil moisture during the dry summer months. Critical period studies have reported that reductions in competitive weed cover are necessary during the initial years of establishment to avoid reductions in seedling growth....

Resource Type:

Masters Thesis

Full Text:

). 2007. Washington state climate data [accessed 30 January
Identifying site characteristics that explain variation in Douglas-fir site productivity and stem form

Creator:

Magalska, Lauren E.

Abstract:

Foresters care about site productivity and stem quality in Douglas-fir plantations for many reasons. The profitability of forest land and the economic returns on silvicultural investments are directly related to site productivity. Thus, understanding the relationships among Douglas-fir productivity, stem form and site characteristics is important economically. My objective was...

Resource Type:

Masters Thesis

Full Text:

variation in Douglas- fir productivity and stem form throughout western Oregon and Washington by using