Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon.

Barrett James W.

doi:10.2737/PNW-RP-301

Treesearch

Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon.

Informally Refereed

Authors:

Barrett James W.

Year:

1982

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-301

Source:

Res. Pap. PNW-RP-301. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 18 p

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Download (PDF 1.80 MB): https://research.fs.usda.gov/download/treesearch/21459.pdf

Abstract

Diameter, height, and volume growth and yield are given for plots thinned to 1000, 500, 250, 125, and 62 trees per acre in a 40- to 70-year-old stand of suppressed ponderosa pine (Pinus ponderosa Dougl. ex Laws.) saplings in central Oregon. Trees averaged about 1-inch in diameter and 8 feet in height at the time of thinning. Considerations for choosing tree spacing for precommercial thinning in this type of stand are discussed.

Keywords

Thinning effects, stand density, precommercial thinning, ponderosa pine, Pinus ponderosa

Citation

Barrett James W. 1982. Twenty-year growth of ponderosa pine saplings thinned to five spacings in central Oregon. Res. Pap. PNW-RP-301. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 18 p