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Filtering by: Subject Viticulture -- Oregon, Western Advisor Maguire, Douglas A.

Impact of Climate and Disturbance on the Formation of Earlywood and Latewood in Douglas-fir at the Salal Fields Study Site

Creator:

Gourley, Derek M. F.

Abstract:

Wood density is controlled to a large extent by the relative widths of earlywood and latewood in the stem, but the mechanisms controlling these amounts are poorly understood in coastal Douglas-fir. To understand the role of climatic factors, one hundred and thirty-six increment cores were collected and measured from the...

Resource Type:

Masters Thesis

Full Text:

from the Salal Fields study site located in Western Oregon. Increment cores were collected from the
Twenty-five-year response of Larix occidentalis stem form to five stand density regimes in the Blue Mountains of eastern Oregon

Creator:

Lennette, Andrew P.

Abstract:

Upper-stem diameter measurements from a levels-of-growing-stock study on Larix occidentalis in the Blue Mountains of eastern Oregon were collected over a 25 year period with an optical dendrometer. The following hypotheses were tested with these data: 1) stand density regime has a significant effect on stem form; and 2) crown...

Resource Type:

Masters Thesis
Seedling response to vegetation management in northeastern Oregon

Creator:

Lindsay, Amanda A.

Abstract:

Northeastern Oregon geology and climate provides moderately productive conditions for forest management and timber production. Although site preparation and planting are commonly used silvicultural practices, little research exists on the efficacy of specific forest herbicides and responses of seedling survival and growth in this region. This research seeks to improve...

Resource Type:

Masters Thesis

Full Text:

from southern and western Oregon, the Hall Ranch ponderosa pine study implemented by Oester et al