A study of phosphorus loading and water quality implications was conducted for
the Oregon coastal lakes. The study was based on existing data for lake total phosphorus
concentrations and for watershed land uses. A phosphorus mass-balance model was
developed to predict lake total phosphorus concentrations from estimated phosphorus
loading from land uses within the lake's watershed. Uncertainty in total phosphorus
concentration estimates are included in the model, and model predictions are considered
to be moderately to highly reliable.
The Oregon coastal lake phosphorus mass-balance model was calibrated from data
for 12 Oregon coastal lakes. Land use phosphorus loading coefficients for forestry, the
coastal dunal aquifer, and precipitation were derived from data specific to the Oregon
coastal region, while other phosphorus loading coefficients were estimated based on
correlations between literature values and Oregon coastal conditions.
The model may be used as an aid for land use management decisions by
estimating water quality effects of projected land use changes. A case study of Mercer
Lake was used to illustrate the model application. / Graduation date: 1994
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/36085 |
| Date | 18 May 1993 |
| Creators | Blair, Michael Stuart |
| Contributors | Nelson, Peter O. |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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