Terraces cover 7.8 % of the Gina River catchment (see figure).
The functioning of terraces are explained in the chapter 'soil and water conservation'. If you follow this link you can study the explanation.
Their occurrence show differences in the geographical distribution: these are located especially in the central-western, central-eastern and north-western part of the Gina River catchment.
Walls cover only 0.1 % of the catchment basin. These are located in the central-western and southern part.
It was detected that the soil conservation measures are poorly maintained, especially in the central-eastern and north-western part.
See the results of the recorded soil erosion damages in the Gina River catchment.
Study the relation of soil conservation measures and morphological units of the Gina River catchment by following this hyperlink.