The quality of selection of forest trees for felling
1996
Kotar, M. (Ljubljana Univ. (Slovenia). Biotechnical Fac., Forestry Dept.) | Andoljsek, J. (Zavod za gozdove Slovenije, Kocevje (Slovenia)) | Kolar, I. (Zavod za gozdove Slovenije, Nazarje (Slovenia))
The paper discusses the results of a repeated tree marking of trees for felling in four stands and the assessment of a stand in which the first thinning was carried out. The correspondence between the results of tree marking performed by district foresters and those attained by a group appointed for repeating tree marking is 81-86% as regards the number of trees and 72-91% as regards wood mass. A high correspondence indicates a high quality performance of tree marking. Tree making is based on objectives and guidelines presented in forest management plans and on objectives and measures presented in the silvicultural plan. Therefore, the quality of tree marking is closely linked with measures presented in the plan or with the quality of planning. The discrepancy between a rather low quality of silvicultural plans on the one side and tree marking of relatively high quality on the other suggests that silvicultural decisions and measures which were carefully planned by district foresters did not become included in silvicultural plans. The reason might be that there is no proper incentive for drawing up good quality plans or that the prescribed schema of a plan is more of a hindrance than an asset.
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