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Filtering by: Committee Member Emmingham, Bill Degree Field Forest Science Degree Name Doctor of Philosophy (Ph.D.)

A stand management strategy for young western hemlock-Sitka spruce forests

Creator:

Kellogg, L. D. (Loren D.)

Abstract:

Western hemlock-Sitka spruce forests, where prior precommercial thinning has occurred, constitute one of the most productive young-growth management types along the Pacific Coast from Oregon to southeast Alaska. These stands are ready for a first commercial thinning entry, however, the costs and benefits of such entries and resulting impacts at...

Resource Type:

Dissertation
Interacting effects of stand density, site factors, and nutrients on productivity and productive efficiency of Douglas-fir plantations in the Oregon Cascades

Creator:

Velazquez-Martinez, Alejandro

Abstract:

The objectives of this research were to study: a) the effect of thinning and treatments consisting of pruning and multinutrient fertilization on aboveground biolnass increment, growth efficiency (GE), and foliar nutrients; b) the influence of topoedaphic variables (soil nutrients, slope, aspect, and rock content) and foliar nutrients on both leaf...

Resource Type:

Dissertation