| УДК |
Аннотация: To rationalize thinning in young coniferous stands, thinning systems have been developed in the past few years which permit the use of modern harvesters and logging machines. In the spring of 1973 a thinning experiment was established in the forest district Olpe, to examine the influence of largely mechanical cuttings on the increament of young Norway spruce stands. The paper gives a report of this experiment, and mentions the results of similar thinning experiments in the discussion. In conclusion, with regard to these scientific findings and to the thinning rules of the state forestry administrations, recommendations for the treatment of young spruce stands are given
Доп.точки доступа:
Bjerg, N.
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