TY - RPRT TI - Long-term trends in alkalinity in large rivers of the conterminous US in relation to acidification, agriculture, and hydrologic modification AU - Edward G. Stets AU - Valerie J. Kelly AU - Charles G. Crawford PY - 2014 DO - 10.1016/j.scitotenv.2014.04.054 UR - https://pubs.usgs.gov/publication/70171520 ID - 70171520 ER -