Studies on the Industrioclimax in Poland

Wien

1971

9 Lit. Ang.

Unselbständiges Werk

673

200144240

Author presents theoretical assumptions on which the programme of complex research on the management of forest areas situated within the range of the impact of industry was based in the Forest Research Institute. Industrial emissions present an abiotic paranatural ecological factor. Their influence rising in quantitative and areal respect brings about explosive changes of an environment. Through the direct impact on organisms as well as indirect one via alterations in site they cause an ecological catastrophe as a result of which perish primeval natural biocoenoses. This initiates an ecological succession the final stage of which is represented by the industrioclimax. The spatial pattern of vegetation in industrioclimax is similar as under natural, adverse for vegetation conditions and the similarity is manifested by an analogic zonation of plant formations. At the high intensity of limiting factors there occurs a biological desert and along with its lowering there are developed ever more complex formations: grassland, shrub, and forest communities. These spontaneous plant associations represent different productive capacities of sites. Their determination and examination renders possible the delineation of the ecological boundary between forest and various silvicultural zones on areas polluted by industry.