Stand Volume Functions for Picea abies in Eastern, Central and Northern Norway
A material of 615 observations was used to develop Norway spruce (Picea abies (L.) Karst.) stand volume functions for eastern, central and northern Norway. A multiplicative model with three independent variables was found to be most suitable. The independent variables were stand basal area, Lorey's mean height, and site index. The R2 value was 0.993 and the coefficient of variation 5.43%. Testing by means of two independent data sets indicated that the function is suitable for practical prediction purposes for different site qualities and in different geographical regions of the country.
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