MWD: the mean weight diameter of aggregates after wet sieving; OM: Organic matter; I: Rainfall intensity, mm/h; P: rainfall, mm; S: slope gradient, °; T1 Time to runoff initiation, min; Q: Flow discharge, L; D: Sediment yield, Kg; DR: Rill sediment yield, Kg; V: Interrill flow, m/s; VL: Rill flow, m/s. CAL: Rill cumulative length, m; LM: Maximum length of rill, m; Wa: Rill mean width, cm; Ha: Rill mean depth, cm; DS: Rill density, m/m2; J: Merge nodes; N: Number of rills. ** indicates a significant correlation at p ﹤0.01; * indicates a significant correlation at p ﹤0.05.
Table 4. Correlation between runoff, sediment parameters and rill morphological parameters