Mots-clés
Agropédologie ; Analyse isotopique ; Années 1910-2009 ; Bilan sédimentaire ; Césium-137 ; Erosion des sols ; Etats-Unis ; Illinois ; Sol cultivé ; Traceur ; Vitesse d'érosionAgropedology ; Caesium-137 ; Cultivated land ; Erosion rate ; Illinois ; Isotope analysis ; Sediment budget ; Soil erosion ; Tracer ; United States of AmericaAgrología ; Análisis isotópico ; Balance sedimentario ; Erosión de los suelos ; Estados Unidos ; Illinois ; Suelo cultivado ; Trazador ; Velocidad de erosiónUse of magnetic tracer and radio-cesium methods to determine past cropland soil erosion amounts and rates
Auteur(s) et Affiliation(s)
OLSON, K.R.
Dep. of Natural Resources and Environmental Sciences, Univ. of Illinois, Urbana, Etats-Unis
GENNADIYEV, A.N.
Research Associate Fac. of Geography, Lomonosov Moscow State Univ., Moscou, Russie, Federation de
ZHIDKIN, A.P.
Research Associate Fac. of Geography, Lomonosov Moscow State Univ., Moscou, Russie, Federation de
MARKELOV, M.V.
Research Associate Fac. of Geography, Lomonosov Moscow State Univ., Moscou, Russie, Federation de
GOLOSOV, V.N.
Fac. of Geography, Lomonosov Moscow State Univ. and Kazan Federal Univ., Volga region, Russie, Federation de
LANG, J.M.
Dep. of Natural Resources and Environmental Sciences, Univ. of Illinois, Urbana, Etats-Unis
Description :
The aim of this research was to determine the soil erosion rates in cropland of west central Illinois Spoon River Valley) using a magnetic tracer (fly ash) and radio-cesium (cesium-137). The fly ash and cesium-137 accumulation on a stable cropland/hayland summit was determined using a spiral transect. This reference site was used as a baseline and then compared with the fly ash and cesium-137 levels in adjacent cropland landscape positions to estimate loss from erosion. The amount and rate of erosion predicted for each cropland landscape position using the fly ash and cesium-137 methods were determine for the 1910 to 1960, 1960 to 2009 and for the entire 100-year time periods. It is showed that the highest predicted cropland erosion rates were on the backslope; The erosion rates were above the tolerable soil loss rate for Hickory soils; The erosion rates are higher for the 50 years after 1960 than before due to continued use of moldboard plowing and more intensive corn–soybean rotation.
Type de document :
Article de périodique
Source :
Catena (Giessen), issn : 0341-8162, 2013, vol. 104, p. 103-110, nombre de pages : 8, Références bibliographiques : 26 ref.
Date :
2013
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)