TY - RPRT TI - Ecohydrological factors affecting nitrate concentrations in a phreatic desert aquifer in northwestern China AU - J.B. Gates AU - J.K. Böhlke AU - W.M. Edmunds PY - 2008 DO - 10.1021/es702478d UR - https://pubs.usgs.gov/publication/70031954 ID - 70031954 ER -