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Filtering by: Committee Member Myrold, Dave Advisor Perry, David A.

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
Physical processes affecting soil biotic and abiotic responses to disturbance in forest ecosystems of southwestern Oregon

Creator:

Borchers, Jeffrey G.

Abstract:

The effect of physical factors such as soil structure, bulk density, parent material, and topographic variables on soil C and N dynamics and ectomycorrhizal inocululu potential in forests of southwest Oregon were investigated In the high-elevation white fir (Abies concolor (Gord. & Glend.) Lindl.) zone, two old poorly-vegetated clearcuts with...

Resource Type:

Dissertation