Estimating past diameters of several species in the ponderosa pine subregion of Oregon and Washington.

Benjamin Spada

Treesearch

Estimating past diameters of several species in the ponderosa pine subregion of Oregon and Washington.

Informally Refereed

Authors:

Benjamin Spada

Year:

1960

Type:

Scientific Journal

Station:

Pacific Northwest Research Station

Source:

PNW Old Series Research Notes No. 181, p. 1-4

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Abstract

In certain kinds of forest growth studies, an estimate of diameter outside bark is required for trees as of some previous date. Previously, papers were published by this Station regarding estimation of past diameters of Douglas-fir and ponderosa pine. Since they were issued, new and more complete data have been collected for most of the major species in the ponderosa pine subregion as part of the Forest Survey inventory program.

Citation

Spada, Benjamin. 1960. Estimating past diameters of several species in the ponderosa pine subregion of Oregon and Washington. PNW Old Series Research Notes No. 181, p. 1-4