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Use of a Versatile Experimental System for Soil Erosion Studies
Author(s) -
Walker P. H.,
Hutka J.,
Moss A. J.,
Kinnell P. I. A.
Publication year - 1977
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1977.03615995004100030037x
Subject(s) - flume , surface runoff , rill , erosion , hydrology (agriculture) , environmental science , storm , sediment transport , flow (mathematics) , soil science , geotechnical engineering , geology , sediment , geomorphology , ecology , oceanography , biology , geometry , mathematics
A laboratory facility for the study of soil erosion is described. Rainfall from a modular system supplied raindrops at near terminal velocity to prepared soil beds set in a flume with slope adjustable up to 30%. A comparison was made of erosion under overland flow alone and storm rains of the same intensity (discharge), but different energy levels. Raindrop impact in runoff flow was a powerful agency in promoting soil transport and inhibiting rill formation. Bed‐load movement was important in the transport of sand grains, even where the runoff was disturbed by raindrops.