Antecedent rainfall and tillage effects upon infiltration

D. M. Freebairn, Satish C Gupta, C. A. Onstad, W. J. Rawls

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

Large differences in infiltration characteristics were attributed to the development of a surface crust. In the absence of a crust, this soil was highly permeable (>200 mm h-1) while surface-crusted infiltration rates were as low as 10 mm h-1. Infiltration characteristics were related to depth of rainfall since tillage, cover, and random roughness. Statistical analysis showed that >77% of variation in infiltration rate, Green and Ampt hydraulic conductivity, and curve number was explained by the depth of rainfall since tillage, surface cover, and random roughness. A procedure is suggested that describes the change in infiltration characteristics as a function of rainfall since tillage for various tillage conditions. -from Authors

Original languageEnglish (US)
Pages (from-to)1183-1189
Number of pages7
JournalSoil Science Society of America Journal
Volume53
Issue number4
DOIs
StatePublished - Jan 1 1989

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