Height growth and site index curves for Douglas-fir on dry sites in the Willamette National Forest.

Joseph E Means; Mary E. Helm

doi:10.2737/PNW-RP-341

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Height growth and site index curves for Douglas-fir on dry sites in the Willamette National Forest.

Informally Refereed

Authors:

Joseph E Means, Mary E. Helm

Year:

1985

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-341

Source:

Res. Pap. PNW-RP-341. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 24 p

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Download (PDF 1.74 MB): https://research.fs.usda.gov/download/treesearch/25243.pdf

Abstract

Equations and curves are presented for estimating height and site index of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) on hot, dry sites in the Willamette National Forest in western Oregon. The equations are based on the dissected stems of 27 trees. The curves differ from those previously published for Douglas-fir. Instructions are presented for their use.

Keywords

increment (height), site index, Douglas-fir, Oregon (Willamette National Forest)

Citation

Means, Joseph E; Helm, Mary E. 1985. Height growth and site index curves for Douglas-fir on dry sites in the Willamette National Forest. Res. Pap. PNW-RP-341. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 24 p