Ocena stanu zagrożenia środowiska leśnego Puszczy Zielonka przez zanieczyszczenia powietrza atmosferycznego w latach 1992-2006

Since 1992, the Forest Management Department in cooperation with the Forestry Natural Foundation Department of the University of Life Sciences in Poznań have been regularly monitoring the levels of sulphur compound and dust emissions in the Zielonka Primeval Forest at observation points distributed on 14 permanent study sites located in pine stands in age classes II−V. This paper presents an assessment of the threat posed to the forest environment on the basis of changes in the industrial emission level over the past fifteen years in this area of special value for nature. In 1993, the area was included in the "Puszcza Zielonka" Landscape Park.