Soil carbon and silicon pools across an un-drained toposequence in central Ohio

Auteur(s) et Affiliation(s)

IBRAHIM, M.A.

Soil Science dept., College of Agriculture, Univ., Zagazig, Egypte

LAL, R.

Carbon Management and Sequestration Center, School of Environment and Natural Resources, Ohio State Univ., Columbus, Etats-Unis

Description :
This study focused on soil carbon (organic and inorganic) and silicon pools across a soil toposequence encompassing all landscape positions (summit, shoulder, backslope, footslope, and toeslope), and for the soil profile. A soil toposequence, derived from till parent material with an un-drained closed depression, was selected in central Ohio. Pedons were collected from the Gahanna Woods Park. All soil samples were analyzed for selected physical and chemical properties. It is highlighted that the un-drained closed depression enhances the soil organic carbon (SOC) accumulation across the integrated toposequence, in particular at the lower landscape positions (footslope and toeslope), and it favors the formation of desired soil structure (granular). Soil total N was correlated with that of SOC across the toposequence and within pedons.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2014, vol. 120, p. 57-63, nombre de pages : 7, Références bibliographiques : 1 p.

Date :
2014

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais