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Filtering by: Subject Western larch -- Oregon -- Blue Mountains -- Growth

Growth and yield of western larch under controlled levels of stocking in the Blue Mountains of Oregon

Creator:

Cochran, P.H.

Abstract:

Repeated thinning to five growing-stock levels resulted in widely differing tree sizes and volumes per acre after 30 years. Largest trees but the least cubic-volume yield per acre were produced in the heaviest thinning level, whereas highest board-foot yields were found in intermediate thinning levels. partial defoliation by larch casebearer...

Resource Type:

Technical Report
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:

and growth of western larch and Douglas-fir seedlings in the first few years after planting