Energetic possibilities of biomass utilization in elblag region (north part of Poland)

Abstract

Agricultural character and unique - in European scale - nature resources of Elblag Highland and Elblag part of Vistula Zulawy are the important tramp for utilization of energy from renewable resources, Field experiments on utilization of Sida hermaphrodita, Miscantus x giganteus, Helianthus tuberosus and Salix viminalis are carried out in the region, The results show that the highest yields of energy, expressed as energy per I ha, are obtained from Salix vimina/is, It is cultivated on scores of plantations in total area of about 100 ha, The yield of Salix depends on number of plants per I ha and harvest frequency, The highest yield of dry matter and energy ( calculated per I year utilization of plantation) is obtained on alluvial soils  in the climatic conditions of the region when the density is 20 000 plants per !es ha and harvest - every 3rd year; obtained energy is an equivalent of energy from 12 ton of coal,