Examining the impacts of increased corn production on groundwater quality using a coupled modeling system.

ABSTRACT: This study demonstrates the value of a coupled chemical transport modeling system for investigating groundwater nitrate contamination responses associated with nitrogen (N) fertilizer application and increased corn production. The coupled Community Multiscale Air Quality Bidirectional and Environmental Policy Integrated Climate modeling system incorporates agricultural management practices and N exchange processes between the soil and atmosphere to estimate levels of N that may volatilize into the atmosphere, re-deposit, and seep or flow into surface and groundwater. Simulated values from this modeling system were used in a land-use regression model to examine associations between groundwater nitrate-N measurements and a suite of factors related to N fertilizer and groundwater nitrate cont

SUBMITTER: Garcia V 

PROVIDER: S-EPMC6088799 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature