Phosphorus Removal Potential from Surface Water through Yearly Harvesting of Cattails in a Delta Marsh
Abstract:Cattail marshes are normally nutrient rich environments, serving to collect phosphorus from incoming streamflow. If cattail uptake of phosphorus (P) for annual growth comes from the water column, annual harvest would improve water quality, but if the P source is sediment, no short term effect would be expected on surface water P concentration. We took monthly sediment cores from a dense cattail stand and from an adjacent open water area throughout over the six month growing season. Using sequential fractionation, bioavailable and recalcitrant P forms (Resin, HCO3, OH, HCl, residual and organic P) were isolated and compared between sites and over the season. Temporal changes were found for some labile fractions with OH P decreasing by 4 to 17 fold between May and August. This was countered by increases in HCO3 P, maintaining an approximate balance throughout the season at both sites. No P form declined in direct response to the ∼5 g/m2 biomass uptake of P.
Document Type: Research Article
Publication date: October 1, 2007
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Ingenta Connect is not responsible for the content or availability of external websites