Changes in the hydrological status of the basin due to the application of erosion control works
Radonjić, Jasmina (PWC Srbijavode, Niš (Serbia)) | Ristić, Ratko (Faculty of Forestry, Belgrade (Serbia)) | Polovina, Siniša (Faculty of Forestry, Belgrade (Serbia))
Protection of land with vegetation is the primary factor in the fight against water erosion with necessary application of biotechnical, technical, administrative and planning measures. One of the first basins to be treated with works for the protection against erosion and torrent control is the Gradasnica River basin. The basic parameters to display the changes of the hydrological status of the land are the state of erosion, the change of erosion-coeffi- cient, annual sediment yield, specific annual sediment discharge through the hydrographic network, the value of the runoff curve number and value of the maximal discharge. Works on protection from erosion and regulations of torrents have influenced the decrease in erosion coefficient values from strong erosion (Z=0.99) to the value of weak erosion (Z=0.40), as well as the reduction of the maximum discharge value from Qmax(1956) =108,12m3/s to the value of Qmax(2014)=87.2 m3/s.
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