Vegetation changes within the Chornobyl Exclusion Zone, Ukraine

Abstract The article presents data from the study of vegetation dynamics in Chornobyl Exclusion Zone 30 years after nuclear disaster and resettlement its local people. 1993 prognostic on further development grass forest community groups this area was only partially correct. new prognosis for demutation successions reflects deviations linear with a possible horizontal "shift", depending climatic conditions, bio-ecological features plants, as well impact fires. Based analysis recent geobotanical studies vegetation, values ecofactors that determine course communities were calculated. In particular, classic succession is now inherent former settlements exclusion zone where formation forests takes place. old fallow lands, previously prevailing Elytrigia repens has lost dominant position, been replaced by Calamagrostis epigejos , which we associate certain deficiency nitrogen compounds soil. allelopathic properties cereals inhibit process replacing ones, affects succession. issues residential areas are considered sequence changes different habitats described. Post-pyrogenic noted capacity invasive plant species to invade natural ecosystems characterized. It emphasized frequent large-scale fires cause significant imbalance ecosystems, result appearance largenumber alien species.