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Runoff as Affected by Salt Treatments and Soil Texture
Author(s) -
Kemper W. D.,
Noonan L.
Publication year - 1970
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/sssaj1970.03615995003400010034x
Subject(s) - surface runoff , silt , soil water , soil texture , infiltration (hvac) , environmental science , hydrology (agriculture) , salt (chemistry) , loam , soil science , geology , geotechnical engineering , chemistry , materials science , geomorphology , composite material , biology , ecology
Runoff was measured on soils during rains applied with a rainfall simulator in the laboratory. These soils were dried and rained on again and this sequence was repeated several times with runoff measured during each rain. The texture providing maximum runoff consisted of high sand contents (50 to 80%). Higher percentages of clay and silt resulted in surface cracking and considerable infiltration through those cracks. Marked increases occurred in runoff due to NaCl treatments and decreases occurred due to CaSO 4 treatments. Since the amounts of the salts required was small (244 to 896 kg/ha) and the cost of these salts is low (approximately $1.00/50 kg in bulk), emergency water control of bare surfaces using salt treatments appears to be economically feasible.