TY - RPRT TI - Greenhouse gas fluxes from salt marshes exposed to chronic nutrient enrichment AU - Gail L. Chmura AU - Lisa Kellman AU - Lee van Ardenne AU - Glenn R. Guntenspergen PY - 2016 DO - 10.1371/journal.pone.0149937 UR - https://pubs.usgs.gov/publication/70176521 ID - 70176521 ER -