Impact of HPP Djerdap-1 reservoir on environment and protection of agricultural areas

The paper deals with the protection against noxious effects of the backwater and describes the system of measurements and monitoring of the backwater regime increasing in time from 68.00 to 69.50. MaxNWL. There is also a description of the water regime and quality, as well as of changes induced by backwater on ice and in the river bed (morphology), and on the Danube river banks. The paper presents the groundwater regime and protection under natural and back-water conditions at the agricultural areas of app. 150,000 ha being protected by 300 km long dikes. It deals also with the changes of the ichthyology. Finally the paper treats the problem of relocation and protection of towns, villages, communications, archaeological and historical monuments in the zone of the existing backwater effect of the HPP Djerdap-1 reservoir.