Nutrient loads in fresh and coastal waters continue to lead to harmful algal blooms across
the globe. Historically, floodplains—low-lying areas adjacent to streams and rivers that …

Large numbers of free water surface treatment wetlands are in use for nitrate reduction.
Target applications are field runoff, river and stream improvement, and enhancement of …

A 20+ year data set of the size of the hypoxic zone off the Louisiana− Texas coast is
analyzed to reveal insights about what causes variation in the size of the hypoxic zone in …

Wetlands support physical and ecological functions that result in valuable services to
society, including removal of reactive nitrogen (Nr) from surface water and groundwater. We …

Much work has been invested in the development of practices and technologies that reduce
nitrate losses from agricultural drainage in the US Midwest. While each individual practice …

Abstract SPAtially Referenced Regression on Watershed models developed for the Upper
Midwest were used to help evaluate the nitrogen‐load reductions likely to be achieved by a …

The impact of agricultural chemicals on groundwater quality depends on the interactions of
biogeochemical and hydrologic factors. To identify key processes affecting distribution of …

Targeting of agricultural conservation practices to the most effective locations in a watershed
can promote wise use of conservation funds to protect surface waters from agricultural …

Subsurface tile drain flows can be a major source of nutrient loss from agricultural
landscapes. This study quantifies flows and nitrogen and phosphorus yields from tile drains …

Excess nitrogen (N) causes numerous water quality problems, and in the upper Mississippi
River Basin, much of the excess N results from landscape modifications necessary for row …