Journal of the Japanese Society of Soil Physics
Online ISSN : 2435-2497
Print ISSN : 0387-6012
Soil Conservation at the Farming Process on Sloping Arable Land
Tetuaki NagasawaYasuharu UmedaTakashi InoueToshimi Muneoka
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1995 Volume 71 Pages 47-51

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Abstract
Rainfall and suspended sediment concentration were observed at the sloping arable land of Tokachi district in Hokkaido. Erodibility factor of the USLE obtained by 10 minutes interval data of rainfall were relatively large in autumn. But suspended sediment concentration of runoff water from the arable land was closely correlated to the tillage rather than the rainfall conditions. Suspended sediment concentration rises extremely high after tillage even the rainfall erodibility is relatively low. Tillage must be concerned as one of the most significant issue of the soil conservation at the sloping arable land.
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© 1995 Japanese Society of Soil Physics
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