Abstract:
The paper presents the quality indicators of Jiu River in 2011 and 2012 years as infuenced by human activity, especialy
fertilizers and manure aplication in 33 communes within Jiu River basin. The fertilizer quantity applied on a hectare
varied between 22.5 and 68.5 kg/ha and the nitrogen quantity from manure ranged between 3 and 20 kg/ha; a certain
ammount of these applied fertilizers and manure have been leached into soil profile or have been subject of surface
runoof. In 2011 there was analized the water from Jiu River by taking water samples at 6 dates (14.01; 09.03; 03.05;
06.07; 09.09 and 10.10) and there was determined that the NO3, NO2, Nt and Pt contents were over MAC (Maximal
Admissible Content) because of industrial spill and urban sewage slurry as well as of chemical fertilizers and manure.
At water supplying stations from Jiu River basin all water quality indicators show a very good quality of water. In 2012
year the NO3, NO2, Nt and Pt contents were over MAC and the heavy metals content was under MAC, excepting Cu
which overpasses MAC.
