Woyessa, YE; Pretorius, E; Hensley, M; van Rensburg, LD; van Heerden, PS
(Water Research Commission: Water SA, 2006-01-13)
The study area is the Upper and Middle Modder River basin situated in a semi-arid area of central South Africa. This is an important catchment because of the relatively large nearby towns of Bloemfontein, Botshabelo and ...