An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms.
The gallery forests support a diversity of wildlife and provide forage in the dry season for buffalo, waterbuck, and other large undulates.
Zebra and wildebeests are generalist grazers
Because of greater organic matter accumulation and reduced evaporation, which keeps the soil moist.