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

Poster Number 232

See more from this Division: A05 Environmental Quality
See more from this Session: Symposium --Biogeochemistry of Relationships Among Soil Nutrients, Organic Carbon, and Water Quality: I (includes Graduate Student Competition) (Posters)

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, West Lafyette, IN
(2)USDA-ARS, Natl. Soil Erosion Res. Lab., West Lafayette, IN
Abstract:
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. 

See more from this Division: A05 Environmental Quality
See more from this Session: Symposium --Biogeochemistry of Relationships Among Soil Nutrients, Organic Carbon, and Water Quality: I (includes Graduate Student Competition) (Posters)