Regeneracja grądu jodłowego w rezerwacie „Jamno”

The present study describes changes that have occured in the phytocoenosis of Pino-Quercetum abieieiosuni in the „Jamno” reserve. It was determined that the vegetation of this reserve, due to its high dynamics, recovers to its natural form of Tilio-Carpinetum lypicum with Abies alba. The disapperance of Pinus silvestris from all layers of the phytocoenosis and an essential increase in Carpinus betulus and Quereus rohur in the tree-stand was observed. A slight quantitative increase in Abies alba in the tree-stand was also noticed. Changes in the field layer consist mainly in the extinction of species typical of coniferous and increase in species typical of deciduous forests.