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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USGS Water Resources of Tennessee
