Glossary:Runoff
From SASSA
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[edit] Run-off
That portion of rainfall (precipitation) or irrigation on an area which does not infiltrate, but instead is discharged from the area. That which is lost without entering the soil is called surface runoff. That which enters the soil before reaching a stream channel is called ground water runoff.
[edit] Source
Soil Science Society of America. Glossary of Soil Science Terms. Available online here, last accessed 28.09.2006.
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