Methodology for Evaluating In-Lake Effects Resulting from Phosphorus Management in the Lake Erie Basin.
Abstract
This report outlines the knowledge of the phosphorus budget in Lake Erie and describes a long-term total phosphorus model that has been used to simulate the phosphorus dynamics in the lake. The model incorporates the input of phosphorus to the lake from the drainage basin, exchange of phosphorus at the sediment-water interface and export of phosphorus from the lake by river outflow. Using available data and assuming equilibrium, the model was calibrated and used to project future in-lake phosphorus concentrations for a recommended objective loading of 11,000 metric tons of total phosphorus. The findings indicate that management of nonpoint, as well as point sources, will be required to meet the loading objective. The model output also enables the projection that the trophic status of the central basin of Lake Erie will be significantly improved (mesotrophic) if the recommended objective loading is obtained. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1978
- Accession Number
- ADA078160
Entities
People
- Ralph R. Rumer Jr
Organizations
- University at Buffalo