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<br />r- <br />tAJ <br />..c.. <br />~ <br /> <br />The pediments comprise a smaller total area than the badlands. <br /> <br />Several distinct surface elevations are present. They were formed <br /> <br />by mass-wasting processes and arid-landform development associated <br /> <br />with late Pleistocene and Holocene glacial stades. The pediments <br /> <br />are capped by cemented gravels and are the most stable landform in <br /> <br />terms of sediment and salt production. <br /> <br />Alluvial valley floors have the least surface extent. Presently, <br /> <br />all channels are incised into or through the alluvium. The alluvial <br /> <br />valley floors, except along the channel walls, are stable with regard <br /> <br />to sediment and salt production. <br /> <br />Recommendations for understanding the erosional and salinity <br /> <br />characteristics of runoff from the erosionally unstable badlands and <br /> <br />for reducing erosion and salinity related to current land use are: <br /> <br />1) examine the effectiveness of existing sediment retention structures; <br /> <br /> <br />2) compare, for land use purposes, sediment load and salinity of runoff <br /> <br />from the two drainage basin lithologies in the badlands; 3) avoid road <br /> <br />construction across hillslopes; 4) reduce gully erosi6n caused by drain- <br /> <br />age ditches and culverts along roads; and 5) use a landforms map for <br /> <br />the purpose of locating stable areas for grazing and road construction. <br /> <br />Hi <br />