TY - RPRT TI - Stable carbon isotope depth profiles and soil organic carbon dynamics in the lower Mississippi Basin AU - J.G. Wynn AU - J.W. Harden AU - T. L. Fries PY - 2006 DO - 10.1016/j.geoderma.2005.03.005 UR - https://pubs.usgs.gov/publication/70030862 ID - 70030862 ER -