Product recovery of ponderosa pine in Arizona and New Mexico.

Thomas D. Fahey; Janet K. Ayer Sachet

doi:10.2737/PNW-RP-467

Treesearch

Product recovery of ponderosa pine in Arizona and New Mexico.

Informally Refereed

Authors:

Thomas D. Fahey, Janet K. Ayer Sachet

Year:

1993

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-467

Source:

Res. Pap. PNW-RP-467. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 18 p

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Abstract

A mill recovery study of ponderosa pine in Arizona and New Mexico showed wide variation in quality within the resource. Lumber grade ranged widely by log grade and diameter, with a major difference within grade 5 logs between old growth and young growth. Old growth produced mostly Shop and Selects grades of lumber while young growth produced mostly Dimension grades of lumber; small-diameter young growth developed severe problems of warpage. Log grades separated logs into distinct value classes, and separating young-growth timber (as if an additional grade) allowed better segregation of logs by product type and expected value.

Keywords

Product recovery, ponderosa pine, Pinus ponderosa, log grading and scaling, timber valuation

Citation

Fahey, Thomas D.; Sachet, Janet K. Ayer. 1993. Product recovery of ponderosa pine in Arizona and New Mexico. Res. Pap. PNW-RP-467. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 18 p