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Filtering by: Publisher U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station Creator Cochran, P.H.

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
Lodgepole pine development after early spacing in the Blue Mountains of Oregon

Creator:

Cochran, P.H. and Dahms, Walter G.

Abstract:

Seedlings were thinned to spacings of 5, 9, 12, 15, and 18 feet and measured periodically. Twenty-seven years after treatment, quadratic mean diameters increased curvilinearity (p < or = 0.05) as spacing increased, but total height did not differ significantly (p < or = 0.05) with spacing. Corresponding basal areas...

Resource Type:

Technical Report