Felling ripeness as a component of forest management which is not respected in practice
1987
Golubovic, U. (Sumarski fakultet, Zagreb (Yugoslavia))
In this work the author presents the results of investigations into ripeness for felling in stands of penduculated oak (Quercus robur L.) in Croatia (Yugoslavia). Among several established degress of felling ripeness, he present the most favourable ones penduculated oak, based on measurements carried out in 17 forest management units on 346 stands of penduculated oak 30-140-year old or on 4,225 hectares of test tracts in habitats of 1 and 2 fertility classes. On the basis of a careful analysis of 14 investigated degrees of felling ripeness on penduculated oak stands the author discusses the seven most relevant ones to forest taxation. On the basis of these, he has determined that penduculated oak stands in habitas of 1 and 2 fertility classes reach the most favourable ripeness for felling at the age of 140 years. Before this age forests should not be felled, except for silvicultural and health purposes, because they do not yield the greatest possible income in terms of standing timber per area unit. What is more, the author is of the opinion that the most favourable felling ripeness for penduculated oak would be at an even later age of stands, but he did not find such stands in his field investigations. Hence his conclusion is that oak forests in Croatia are felled to early, which causes great losses not only to forestry and woodworkings industries, but also to the community as a whole.
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