What is Surface runoff?
[[Image:Runoff.jpg|thumb|upright|Runoff flowing into a [[storm drain|stormwater drain]]]] '''Surface runoff''' is the excess [[water]] that flows over land when the [[soil]] below it is flooded. This is a big part of the [[water cycle]].<ref>Robert E. Horton, ''The Horton Papers'' (1933)</ref><ref>Keith Beven, ''[[Robert E. Horton]]'s perceptual model of infiltration processes'', Hydrological Processes, Wiley Intersciences DOI 10:1002 hyp 5740 (2004)</ref> This a prime cause for [[soil erosion]] and degradation of soil. ==References== {{reflist}} {{sci-stub}} [[Category:Drainage]]