How these costs affect total annual costs for an average forest road are shown in table 1, assuming an annual traffic volume of 10, 000 vehicles. Annual traffic volumes rather than daily volumes are generally used for forest roads because of theanbsp;...
Title | : | Height Growth in Western White Pine Progenies |
Author | : | G. E. Rehfeldt, R. J. Steinhoff |
Publisher | : | - 1970 |
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