Unit-area loads of suspended sediment, suspended solids and total phosphorus from small watersheds in Wisconsin
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Abstract
Watershed planners in the Wisconsin Department of Natural Resources (WDNR) and in Wisconsin county governments use estimates of loads of total solids and total phosphorus in streams for numerous management purposes. A few examples of these are to establish load reduction goals, to estimate the relative magnitude of nonpoint sources compared to point sources, and to estimate phosphorus loads to lakes. Solids and phosphorus are two of the most common nonpoint contaminants resulting from agricultural activity. Loads can be estimated either by monitoring the water quantity and water quality in a watershed or by modeling those same factors. Monitoring is the most accurate method for load estimation, but it is also time consuming and expensive. A simple method of estimating loads of chemical constituents or suspended solids in a watershed is to use unit-area loads that have been calculated from monitored data to estimate loads in watersheds where monitoring data are not available. A "unit-area load" is defined as the mass of a particular constituent transported by a stream, divided by the drainage area of the watershed.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Unit-area loads of suspended sediment, suspended solids and total phosphorus from small watersheds in Wisconsin |
| Series title | Fact Sheet |
| Series number | 195-97 |
| DOI | 10.3133/fs19597 |
| Year Published | 1997 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Wisconsin Water Science Center |
| Description | 3 p. |
| Country | United States |
| State | Wisconsin |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |