Studies on the determination of the breast-height form factors for stem of Pinus thunbergii and Cryptomeria japonica.

Park N.C.

Studies on the determination of the breast-height form factors for stem of Pinus thunbergii and Cryptomeria japonica.

1985

Park N.C.

In order to estimate breast-height form factors of Pinus thunbergii and Cryptomeria japonica, 8 models based on tree age, diameter at breast height and tree height were suggested and evaluated. The above estimated breast-height form factors proved to be overestimated for young trees and small diameter trees, and to be underestimated for old trees and large diameter trees, in comparison to generally accepted figure in Korea, that was, the form factor of 0.45.

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