Decay of Engelmann spruce in the Blue Mountains of Oregon and Washington.

Paul E. Aho

Treesearch

Decay of Engelmann spruce in the Blue Mountains of Oregon and Washington.

Informally Refereed

Authors:

Paul E. Aho

Year:

1971

Type:

Research Paper

Station:

Pacific Northwest Research Station

Source:

Res. Pap. PNW-RP-116. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p

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Download (PDF 1.87 MB): https://research.fs.usda.gov/download/treesearch/26235.pdf

Abstract

A total of 292 Engelmann spruce were dissected and examined for decay and other defects in seven areas in the Blue Mountains of southeastern Washington and northeastern Oregon. Decay on a cubic-foot basis was 3.3 percent for pole trees and 5.4 percent for sawtimber. Defect loss in sawtimber spruce amounted to nearly 12 percent of the gross merchantable board-foot volume. Decay varied among study areas and could not be explained on the basis of age differences.

Keywords

decay fungi (wood), defect indicators (wood quality), fungi (forest damage)

Citation

Aho, Paul E. 1971. Decay of Engelmann spruce in the Blue Mountains of Oregon and Washington. Res. Pap. PNW-RP-116. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 21 p