2008 Joint Annual Meeting (5-9 Oct. 2008): Sediment P Flux from Streams and Ditches Under Different Land Management Practices Draining into a Drinking Reservoir.

538-3 Sediment P Flux from Streams and Ditches Under Different Land Management Practices Draining into a Drinking Reservoir.



Monday, 6 October 2008
George R. Brown Convention Center, Exhibit Hall E
Candiss Williams1, Brad Joern1, Douglas Smith2, Laura Bowling1 and Carol Lembi1, (1)Crop, Soil and Environmental Sciences, Purdue University, Purdue University, 915 West State Street, West Lafyette, IN 47907
(2)USDA-ARS National Soil Erosion Research Lab, USDA-ARS National Soil Erosion Research Lab, 275 S. Russell Street, West Lafayette, IN 47907-2077
Excessive P levels in surface waters can cause algae blooms and increase water treatment costs in reservoirs used for potable water. Sediments can buffer soluble P concentrations in ditches and streams that feed into these reservoirs.  Our study area included ditches and streams that serve as the headwaters of the Eagle Creek reservoir, one of the primary sources of potable water for Indianapolis, IN.  Our objectives were to determine if surface water P concentrations were related to the P status of the underlying sediments and determine if differences in land use were related to ditch and stream water P concentrations.