Liu, Zheng; Schieffer, Jack; Hu, Wuyang; Pagoulatos, Angelos - 2011
A growing share of water pollution in the U.S. can be attributed to nonpoint sources (USEPA 2002). Some of this trend can be attributed to declining point source (PS) emissions as a result of regulation under the Clean Water Act (CWA). However, fertilizer-intensive practices used to improve...