The study deals with coming into existence and development of woody species communities on islands in the middle reservoir of Nové Mlýny, which form a part of the supraregional biocorridor running through the Dyje river floodplain and link up with the biocorridor in the Morava river floodplain of provincial significance. The primary subject of interest is dynamics of the natural development of floodplain forest succession initial stages on these islands where limiting factor for the successful growth of woody species stands is water surface level in the reservoir. From 1996 the water level was lowered in the 2nd and 3rd reservoirs by 85 cm to a spot height of 169.50 m a.s.l. and sediments from the outlet routes of Jihlava and Svratka rivers were deposited into the shape of two islands in the period 1995-2000. The lowering resulted in denudation of natural sediment load in the outlet of Jihlava and Svratka rivers too. Plots arisen in this way provided optimal conditions for invasion of initial stages of the primary succession of floodplain forest communities. The oecesis and development of initial stages of the white willow communities succession were observed on the permanent monitoring plots in the different distance from the bank line. The basic biometric variables of trees and population density were repeatedly specified on these plots. The research continued by the detail primary production analysis of white willow communities in 2002. Interesting is certainly a possibility of using the initial stages of white willow communities for the implementation of energy stands on flood-control polders, making use of their high starting biomass increment rate, high vitality, very good resistance to long-term flooding and at the same time a considerable ecostabilizing and corridors functions in the riverine landscape.