HR: 0800h
AN: H51E-0408    [Abstracts]
TI: Using First Order Watersheds to Understand Potential Sediment sources
AU: * Ritchie, J C
EM: jritchie@hydrolab.arsusda.gov
AF: USDA ARS Hydrology and Remote Sensing Laboratory, BARC-West, Beltsville, MD 20705 United States
AU: McCarty, G W
EM: mccartyg@ba.ars.usda.gov
AF: USDA ARS Hydrology and Remote Sensing Laboratory, BARC-West, Beltsville, MD 20705 United States
AU: Venteris, E R
EM: erik.venteris@dnr.state.oh.us
AF: Ohio Division of Geological Survey, Ohio Department of Natural Resources, Columbus, OH 43224 United States
AU: Owens, L B
EM: owens@coshocton.ars.usda.gov
AF: North Appalachian Experimental Watershed, USDA ARS, Coshocton, OH 43812 United States
AB: Patterns of soil erosion vary across the landscape especially for agricultural areas where different management strategies are use to minimize water, wind, and tillage erosion that tend to redistribute soils. This study used fallout 137Cs to determine rates and patterns of soil redistribution on 19 first order research watersheds at the USDA ARS North Appalachian Experimental Watershed (NAEW) at Coshocton, Ohio. These small watersheds have been managed and monitored since 1935. Management practices include conventional tillage, no-tillage, managed pasture, natural meadows, and combinations of these management practices. Soil erosion rates differed significantly between management practices with natural meadows having the lowest soil erosion rates followed by pastures, no-tillage and conventional tillage. These studies show the impact of soil redistribution patterns within small watersheds between management practices, and aid in understanding soil erosion patterns and identifying sources of sediment related to management practices.
DE: 1804 Catchment
DE: 1815 Erosion
DE: 1861 Sedimentation (4863)
DE: 1879 Watershed
SC: Hydrology [H]
MN: Fall Meeting 2005