An analytical method to assess spruce beetle impacts on white spruce resources, Kenai Peninsula, Alaska.

Willem W.S. van Hees

doi:10.2737/PNW-RP-446

Treesearch

An analytical method to assess spruce beetle impacts on white spruce resources, Kenai Peninsula, Alaska.

Informally Refereed

Authors:

Willem W.S. van Hees

Year:

1992

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-446

Source:

Res. Pap. PNW-RP-446. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p

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Abstract

Forest inventory data collected in 1987 fTom sample plots established on the Kenai Peninsula were analyzed to provide point-in-time estimates of the trend and current status of a spruce beetle infestation. Ground plots were categorized by stage of infestation. Estimates of numbers of live and dead white spruce trees, cubic-foot volume in those trees, and areal extent of infestation were developed and are presented for each stage of infestation.

Keywords

Forest surveys, timber resources (insect damage), statistics (forest), Alaska (Kenai Peninsula)

Citation

van Hees, Willem W.S. 1992. An analytical method to assess spruce beetle impacts on white spruce resources, Kenai Peninsula, Alaska. Res. Pap. PNW-RP-446. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 15 p