TY - RPRT TI - Interaction between urbanization and climate variability amplifies watershed nitrate export in Maryland AU - S.S. Kaushal AU - P.M. Groffman AU - L.E. Band AU - C.A. Shields AU - R.P. Morgan AU - Margaret A. Palmer AU - K.T. Belt AU - C.M. Swan AU - S.E.G. Findlay AU - G. T. Fisher PY - 2008 DO - 10.1021/es800264f UR - https://pubs.usgs.gov/publication/70000232 ID - 70000232 ER -