Mots-clés
Agropédologie ; Céréale ; Erodabilité ; Erosion des sols ; Erosion hydrique ; Etats-Unis ; Ohio ; Parcelle expérimentale ; Propriétés du sol ; Sol cultivéAgropedology ; Cereal ; Cultivated land ; Erodibility ; Experiment plot ; Ohio ; Soil erosion ; Soil properties ; United States of America ; Water erosionAgrología ; Cereal ; Erodabilidad ; Erosión de los suelos ; Erosión hídrica ; Estados Unidos ; Parcela experimental ; Propiedades del suelo ; Suelo cultivadoVariability of soil physiscal quality and erodibility in a water-eroded cropland
Auteur(s) et Affiliation(s)
STAVI, I.
Carbon Management and Sequestration Center, Ohio State Univ., Columbus, Etats-Unis
LAL, R.
Carbon Management and Sequestration Center, Ohio State Univ., Columbus, Etats-Unis
Description :
This study was conducted in a corn field of a research farm in Franklin County, central Ohio. Some sites within the field have experienced water-induced soil erosion following heavy rainstorms. Physical characteristics of the soil were compared between eroded (ER) and un-eroded sites (UN). Compared with ER, the soil in UN had lower penetration resistance, bulk density and sand content, and higher shear strength, hydraulic conductivity, intrinsic permeability, and contents of soil organic carbon, total nitrogen, clay, silt, and very fine sand. The erodibility factor (K) was lower in UN than in ER. Hence, it is suggested the ER sites within the corn field agroecosystem are more susceptible to accelerated erosion as compared with UN sites.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2011, vol. 84, n°. 3, p. 148-155, nombre de pages : 8, Références bibliographiques : 39 ref.
Date :
2011
Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)