Abstract
Hydrologic simulation techniques are combined with field data from rainfall simulation tests to estimate runoff and soil losses from different reclamation treatments. The method presented improves on traditional rainfall simulation plot studies which allow comparisons of treatments, but not estimates of actual soil loss amounts due to realistic precipitation events and antecedent soil moisture conditions. The method is illustrated using data collected on several treatments in the Yampa River Basin coal fields of northwestern Colorado. The field studies used a CSU type portable rainfall simulator. Analysis of field data is extended beyond relative comparisons of the treatments to estimation of actual soil losses using the KINEROS and CREAMS simulation models. Simulation model results provide a better basis for design of such reclamation features as mulch type, mulch rate, slope length and steepness compared with simple analysis of simulated rainfall plot tests.
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