249 Phosphorus and Carbon Losses From Soil

Soil phosphorus loss has been historically believed to occur through surface runoff and erosion. However, recent studies have shown that sub-surface runoff or title drainage can account for 22 to 98% of the total soil phosphorus loss. Variation of phosphorus loss in tile drainage water, including seasonality, magnitude, and relative importance to total soil P loss, may be significant. Up-to-date research findings on sub-surface soil phosphorus loss will be discussed in this session.

S11 Soils & Environmental Quality
Tuesday, November 2, 2010: 8:55 AM-12:00 PM
Hyatt Regency Long Beach, Seaview Ballroom C, First Floor
Organizer:
Tiequan Zhang
Presiding:
Tiequan Zhang
8:55 AM
Introductory Remarks
9:00 AM
249-1
The Importance of Sunbsurface Flow in Soil Phosphorus Loss.
Tiequan Zhang, Agriculture and Agri-Food Canada; C.S. Tan, AAFC; Craig Drury, Agriculture and Agri-Food Canada; Tom Welackey, Agriculture and Agri-Food Canada
9:15 AM
249-2
BMPs for Mitigating Phosphorus Movement From Fertilizer Applications.
Robert Mullen, Ohio State University/OARDC; Elizabeth Dayton, Ohio State University/OARDC; David Henry, Ohio State University/OARDC; Olou Koucoi, Ohio State University/OARDC
9:30 AM
249-3
Drainage System Management Impacts On Phosphorus Loss.
Jeffrey Strock, University of Minnesota; Peter Kleinman, USDA-ARS; Gary Sands, University of Minnesota
9:45 AM
249-4
Characterizing Phosphorus Dynamics in Eastern Wisconsin Tile-Drained Agroecosystems.
Allison Madison, UW Madison; Matthew Ruark, UW Madison; Eric Cooley, UW Discovery Farms; Dennis Frame, UW Discovery Farms; Laura Good, UW Madison; Matt Komiskey, USGS; Birl Lowery, UW Madison; Fred Madison, UW Madison; Todd Stuntebeck, USGS; Aaron Wunderlin, UW Discovery Farms
10:00 AM
Break
10:15 AM
249-5
Site-Specific Evaluation Tool for Phosphorus Risk Assessment.
Vimala Nair, University of Florida; Willie Harris, University of Florida
10:30 AM
249-6
Compositional Differences Affecting Phosphorus Dynamics In Bh and Bt Horizons.
Debolina Chakraborty, University of Florida; Vimala Nair, University of Florida; Willie Harris, University of Florida
10:45 AM
249-7
Sediment Carbon Concentration and Transport From Small Pastured Watersheds.
Lloyd Owens, USDA-ARS; Martin J. Shipitalo, USDA-ARS
11:00 AM
249-8
Influence of Land Use and Water Management On Dissolved Organic Carbon Fluxes From Rice-Dominated Watersheds.
Bruce Linquist, University of California, Davis; Monika Krupa, University of California-Davis; Kenneth W. Tate, UC Davis; Johan Six, Department of Plant Sciences, University of California; Robert Spencer, Univrsity of California; Chris van Kessel, University of California, Davis
11:15 AM
249-9
Water and Nutrient Transport On a Heavy Clay Soil in a Fluvial Plain in the Netherlands.
Gerwin Koopmans, Alterra; Willem Chardon, Alterra; A. van den Toorn, Alterra; Caroline van der Salm, Alterra
11:30 AM
Adjourn
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