Nutrients in Streams and Rivers in the Lower Tennessee River Basin

Contents

Introduction

Nonpoint and point sources of nutrients

Atmospheric deposition
Agriculture
Wastewater discharge

Quantifying nutrient outputs

Concentrations of nutrients in streams vary with land use

Comparisons of nonpoint and point source inputs to nutrient yields

References

For more information

Figure 1. Estimated basin inputs of total nitrogen and total phosphorus and the proportions of inputs from wastewater, atmospheric deposition, and the balance of agricultural inputs.

Figure 2. Estimated stream yields of total nitrogen and total phosphorus and the proportion of stream yield contributed by point sources and nonpoint sources.

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