DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 3-4/1966 str. 30 <-- 30 --> PDF |
(G) by the corresponding form-height (hf), and we obtain the increment of the standing crop according to diameter gradations by multiplying the volume of the diameter gradations, by c-amount and by the smoothed average annual diameter increment (id). In the second instance (Tab. 5) we compute the growing-stock volume according to diameter gradations on the basis of the mean tree volume (v) of the individual diameter gradation and the stem number (n) within this gradation. The volume increment of the mean tree (iv.) in the diameter gradation is obtained by multiplying dv the derivation (——) by the smoothed average annual diameter increment (i,j). The dd increment of the stand volume expressed by diameter gradations is then equal to the product of the stem number (n) in the diameter gradation with the mean tree volume increment of this diameter gradation (iv). |