This research shows that different morphological settings within a
gully area erode differently and respond differently to drivers of erosion
in a humid climate. Channel erosion is related to precipitation accumulation
and antecedent precipitation, while sidewall erosion is related to
antecedent precipitation and duration, and erosion at interfluves is not
related to precipitation. Precipitation duration and accumulation are
more important than storm intensity in initiating and propagating erosion,
but antecedent precipitation is a stronger predictor of erosion than
either precipitation duration or accumulation.