Soil Quality and Water Redistribution Influences on Plant Production over Low Hillslopes on Reclaimed Mined Land

Figure 2

Relative yields of perennial forage crops versus hillslope positions for soil treatments at Zap site during 1978 and 1979 showing means, standard errors, and cubic regressions. Yields of crested wheatgrass (Agropyron cristatum) and Russian wildrye (Psathyrostachys juncea) have been aggregated.