Technical pine foliage as potential stability factor of black pine forest ecosystems
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The paper discussed the possibility of returning organic matter (technical foliage) of black pine to forest ecosystems upon extraction of essential oils. Bearing in mind the fact that this production process is carried out in the immediate vicinity of black pine forests (mobile distilleries) from which technical foliage is taken and the possibility of a relatively easy return of extracted organic matter into the ecosystem, it became necessary to examine the influence of extracted material on metabolisms of black pine forests. It was found that during a one-year period non-extracted material was more readily decomposed than the extracted one (43.59% : 29.13%). This was established by the C:N ratio and anatomical analysis of organic matter, which presented the state of the organic source in every phase of experiment. The conclusion reached during the one-year experiment indicated the possibility and importance of returning organic matter to the ecosystem on completion of the production process. The results of this analysis proved the central role of lignin for humus structuring.