Relationship of Lodgepole Pine Volume Increment to Crown Competition Factor, Basal Area and Site Index
Abstract:The two density measures, basal area and crown competition factor (CCF), were compared in equations for predicting gross cubic volume increment in natural stands, and the relationship of one density measure to the other was explored. Basal area in the presence of age and site index accounted for more variation than did CCF in a similar equation. However, the basal area-volume increment relationship is not synonymous with the stand density-volume increment relationship. The effect of stand density within a given stand was most clearly shown with basal area as a measure of site quality and CCF as a measure of stand density.
Document Type: Journal Article
Affiliations: Research Forester with the Pacific Northwest Forest and Range Expt. Sta., Forest Service, U. S. Dept. Agric., Portland, Oreg.
Publication date: March 1, 1966
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