Vulnerability of shallow ground water and drinking-water wells
to nitrate in the United States: Model of predicted nitrate
concentration in shallow, recently recharged ground water --
Input data set for wetlands (gwava-s_wetl)
This data set represents the percent of woody wetlands and
emergent herbaceous wetlands land cover in the conterminous
United States.
The data set was used as an input data layer for a national
model to predict nitrate concentration in shallow ground water.
Nolan and Hitt (2006) developed two national models to …