Prediction of Nutrient and Heavy Metal Transport Capacities of Suspended Sediment in the Southwestern United States

by William A. Gabbert, Univ of Arizona, Sch of Renewable, Natural Resources, Tucson, AZ, USA,
Peter F. Ffolliott, Univ of Arizona, Sch of Renewable, Natural Resources, Tucson, AZ, USA,



Document Type: Proceeding Paper

Part of: Watershed Management in the Eighties

Abstract:

SEDCON, a computerized prediction technique (using forest type and geology as inputs) has been developed to estimate the impacts of land management practices on physical and chemical characteristics of transported suspended sediment in watersheds of the southwestern United States. A hypothetical example is presented to illustrate that, with inputs of on-site data or default values, predictions of nutrient and heavy metal transport capacities can be displayed. SEDCON is operable for suspended sediment concentrations in winter and summer, and for combinations of mixed conifer or ponderosa pine forests and basaltic, granitic, and sedimentary geologies.

Subject Headings: Suspended sediment | Sediment transport | Heavy metals | Forests | Watersheds | Water quality | Transportation management | United States

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