Estimating past diameters of ponderosa pine in northern California

Robert F. Powers

Treesearch

Estimating past diameters of ponderosa pine in northern California

Informally Refereed

Authors:

Robert F. Powers

Year:

1969

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-194. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p

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Download (PDF 457 KB): https://research.fs.usda.gov/download/treesearch/31226.pdf

Abstract

Past outside bark diameters (d.o.b.) of ponderosa pine in northern California can be estimated from the relation of bark thickness to stem diameter. An equation for estimating past d.o.b.'s has been developed. The relationship appears to be linear between 1 and 20 inches d.o.b. and differs from ratios reported for the species in other areas. Site quality and crown class did not seem to affect the relationship.

Keywords

tree diameter measurements, past diameters, Pinus ponderosa, California

Citation

Powers, Robert F. 1969. Estimating past diameters of ponderosa pine in northern California. Res. Note PSW-RN-194. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p