Definitions for "Throughfall"
All the precipitation reaching the forest floor minus the stemflow, i.e., canopy drip plus direct precipitation.
In a vegetated area, the precipitation that falls directly to the ground or the rainwater or snowmelt that drops from twigs or leaves.
water that is intercepted by vegetation and then drips off it to reach the soil surface
Keywords:  erosive, hydrology, shed, rain, wet
In Hydrology, throughfall is the process which describes how wet leaves shed excess water onto the ground surface. These drops have an erosive power because they are larger than rain drops,however, they also travel a shorter distance so their erosive power is reduced.