(Article of periodic en Anglais - 2009)

Document title

Vertical distribution of total carbon, nitrogen and phosphorus in riparian soils of Walnut Creek, southern Iowa

Authors(s) and Affiliation(s)

SCHILLING K.E. (1) ; PALMER J.A. (2 3) ; BETTIS E.A. (4) ; JACOBSON P. (5) ; SCHULTZ R.C. (2) ; ISENHART T.M. (2) ;
(1) Iowa Geological Survey, Iowa City, ETATS-UNIS
(2) Dep. of Natural Resources Ecology and management, Iowa State Univ., Ames, ETATS-UNIS
(3) Iowa Dep. of Natural resources, Des Moines, ETATS-UNIS
(4) Dep. of Geoscience, Univ. of Iowa, Iowa City, ETATS-UNIS
(5) Dep. of Biology, Grinnell College, Grinnell, ETATS-UNIS


In this study, the AA. evaluated concentrations of nutrients (N,C and P) with depth in a riparian zone of the glaciated Midwest at 8 sites in the riparian zone of Walnut Creek. Subsurface deposits were predominantly silt loam, becoming coarser and more variable with depth. Systematic variations in texture and nutrient content with depth largely corresponded to stratigraphic differentiation among the Camp Creek, Roberts Creek and Gunder members of the regionally recognized Holocene-age DeForest Formation. Variations in subsurface nutrient content were not found to be significantly related to present land cover. Subsurface lithology and stratigraphy should be considered an important component in riparian zone studies where nutrient losses to streams via streambank erosion or groundwater discharge are assessed


Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2009, vol. 77, no3 [pp. 266-273]

Bibliographic references : 1 p.

Collation : 5 fig., 2 tabl.



INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2009.02.006

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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