Yantra River Discharge Assessment Reveals Impact on North Bulgarian Environment.
The study assessed the average annual river discharge of the Yantra River in North Bulgaria for the Danube river basin directorate. They evaluated 10% of the multiannual average river discharge at 195 points along the main river and its tributaries. Three regions were identified: upper mountain tributaries, middle part, and lower part of the basin. A map showing these regions was created. The majority of points were in the drainage basins of Vidima, Rositza, Belitza, and Drianovska rivers.