DIGITALNA ARHIVA ŠUMARSKOG LISTA
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| ŠUMARSKI LIST 3-5/1990 str. 29 <-- 29 --> PDF |
Mathematical Models for Planning the Factors of Cutting and Primary Wood Conversion in Selection Forests Summary The following factors have proved to have considerable influence upon cutting and primary wood conversion: — ecological/management type of forest, — tree species, — work method, — number of workers in the team, — cutting intensity (number of trees/ha). New input criteria (application factors) have increased the reliability and objectiveness of planning the factors of cutting and primary wood conversion. Parameters of mathematical models have been investigated in order to determine Total time of cutting and primar wood conversion (norms of time and performance) Operating time of the chain-saw Fuel and lubricant standards Expected netto wood assortments The advantages of computer-aided design and organization of the mathematical model sstem are incomparable. Key words: cutting an primary wood conversion, technical norms and standars, mathematical models, factors of norm application. |