DIGITALNA ARHIVA ŠUMARSKOG LISTA
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ŠUMARSKI LIST 9-10/1990 str. 47 <-- 47 --> PDF |
Care of Youngs compositions of Pine by Thinning Summary Investigations of the influence of thinning on the development of compositions and on the reduction of damage caused by wet snow were carried out in young compositions of Scotch pine (series A) and Scotch pine and black pine (Series B). In series A, thinning was started when the constituents were 23 years old and repeated every five years, while in series B, thinning was started when the compositions were 12 years old and repeated every three years. The development of the compositions was observed over a period of 21 (23—44) and 20 (12—32) years, respectively. The data which have been gathered indicate that thinning has a positive influence on the growth of the trees in thickness and on timber production, as well as on the reduction of damage caused by wet snow and by sleet in comparison to the control areas. Ke y words : Scoth pine, black pine, thinning, timber production, snow damage |