The study focussed on the Kharaa River

In order to help interpret the estimated sediment contributions from the individual sub-catchments of the Kharaa River (Fig. 1), information was collected on a range of factors including land use, the occurrence or absence of riparian vegetation, soil types, hillslope sediment generation by erosion, NPPB regime, channel network density and contribution to the total runoff from the study area as an entirety (Table 1, Table 2 and Table 3).
Table 1.
Land use (km2) in the Kharaa River sub-catchments for 2010 based on SPOT and Landsat TM imagery. Numbers in brackets are percentage of surface area covered by the land use type.Sub-catchmentUrbanWaterForestCroplandGrasslandRiparianTotalBayangol0.8 (0)0.0 (0)323.8 (42)112.5 (14)308.2 (40)31.2 (4)779.7Bayangol II0.0 (0)0.0 (0)125.4 (37)0.0 (0)208.2 (62)4.7 (1)338.3Boroo Gol7.0 (0)1.1 (0)570.7 (29)144.1 (7)1194.0 (61)51.7 (3)1968.5Kharaa I1.2 (0)0.0 (0)300.5 (36)0.0 (0)510.6 (62)12.6 (2)825.0Kharaa II26.8 (1)0.0 (0)948.7 (45)94.5 (5)912.1 (43)115.7 (6)2097.8Kharaa III39.8 (2)0.7 (0)40.8 (2)540.8 (22)1708.3 (71)78.0 (3)2408.4Mandlin Gol10.9 (1)0.1 (0)342.1 (16)40.9 synovial joint (2)1726.1 (80)34.7 (2)2155.1Sugnugor Gol0.4 (0)0.0 (0)300.1 (61)2.0 (0)143.3 (29)48.4 (10)494.2Tunchelin Gol0.0 (0)0.0 (0)354.3 (68)0.0 (0)155.4 (30)13.7 (3)523.4Zagdelin Gol10.1 (0)1.1 (0)806.2 (27)527.1 (18)1529.4 (52)70.1 (2)2944.0Full-size tableTable optionsView in workspaceDownload as CSV