TY - RPRT TI - Human activities cause distinct dissolved organic matter composition across freshwater ecosystems AU - Clayton J. Williams AU - Paul C. Frost AU - Ana M. Morales-Williams AU - James H. Larson AU - William B. Richardson AU - Aisha S. Chiandet AU - Marguerite A. Xenopoulos PY - 2015 DO - 10.1111/gcb.13094 UR - https://pubs.usgs.gov/publication/70157593 ID - 70157593 ER -