TY - RPRT TI - Vertical distribution of total carbon, nitrogen and phosphorus in riparian soils of Walnut Creek, southern Iowa AU - K. E. Schilling AU - J.A. Palmer AU - E. Arthur Bettis AU - P. Jacobson AU - R.C. Schultz AU - T.M. Isenhart PY - 2009 DO - 10.1016/j.catena.2009.02.006 UR - https://pubs.usgs.gov/publication/70034911 ID - 70034911 ER -