.Runoff was volumetrically measured. Sediment transported by
wash was sampled by the runoff collector with a volume of
approximately 1,000 ml and sampling interval was 4 min to 7 min.
A container of approximately 250 ml was used to collect splashed
samples. Sediment splash occurs when rainfall simulation starts and
continues after surface runoff begins. Total splash samples were taken
before runoff started. After runoff began, samples were taken every
5 min to 8 min. The splash and runoff samples were then oven-dried
at 105 °C to determine the sediment weight.