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Title: LAND USE AND MANAGEMENT IMPACT ON INFILTRATION RATE OF SOILS

Author
item SHUKLA, M - OHIO STATE UNIV.
item LAL, R - OHIO STATE UNIV.
item UNKEFER, P - LOS ALOMOS NAT'L. LAB, NM
item Owens, Lloyd

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 9/1/2002
Publication Date: 11/1/2002
Citation: Shukla, M.K., Lal, R., Unkefer, P, Owens, L.B. Land Use and Management Impact on Infiltration Rate of Soils. S06-Shukla061953-Oral. CD-ROM. 2002 ASA Annual Meeting Abstracts.

Interpretive Summary:

Technical Abstract: Soil physical properties and water infiltration were measured for five land use and soil management practices at North Appalachian Experimental Watersheds, Coshocton, Ohio. The five treatments were no-till with and without manure (NTM, NTWM), no-till corn-soybean rotation (NTCSR), conventional tillage (CT) and meadow (M). Land use and management factors significantly influenced infiltration characteristics, soil bulk density (rb), aggregation and mean weight diameter (MWD). The maximum cumulative infiltration was measured for the NTM treatment and the lowest for the CT treatment. The infiltration rate at 5 min (i5), steady state infiltration after 3 h (iC) and field capacity water content 24 h after infiltration test (FC) were higher in NTM (1.5 cm min-1, 0.4 cm min-1 and 0.35 gg-1, respectively) compared to other treatments. The least values of i5, ic and FC were observed for the CT treatment. Among NT treatments, saturated hydraulic conductivity (Ks) measured on soil cores was the highest for the NTM and NTCSR for both depths. The rb (1.52 g cm-3 for 0 to 10 cm and 1.62 g cm-3 for 10 to 20 cm depth) was the lowest and water stable soil aggregates (WSA) were the highest (WSA of 89% and 63%) for both depths for the NTM treatment.