Throughfall

In Hydrology, throughfall is the process which describes how wet leaves shed excess water onto the ground surface. These drops have erosive power because they are larger than rain drops, however, if they travel a shorter distance their erosive power is reduced. In the case of a high canopy, higher than what is required for the drops to reach termi...
Found on http://en.wikipedia.org/wiki/Throughfall

Throughfall

Describes the process of precipitation passing through the plant canopy. This process is controlled by factors like: plant leaf and stem density, type of the precipitation, intensity of the precipitation and duration of the precipitation event. The amount of precipitation passing through varies greatly with vegetation type.
Found on http://www.physicalgeography.net/physgeoglos/t.html
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