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(Article of periodic en Anglais - 2012)

Document title

Model based analysis of lateral and vertical soil carbon fluxes induced by soil redistribution processes in a small agricultural catchment

Authors(s) and Affiliation(s)

DLUGOSS V. (1) ; FIENER P. (1 2) ; VAN OOST K. (3) ; SCHNEIDER K. (1) ;
(1) Dept. of Geography, Univ., Cologne, ALLEMAGNE
(2) Indo-German Centre for Sustainability, Indian Inst. of Technology Madras, Chennai, INDE
(3) Earth and Life Inst., Georges lemaître Centre for Earth and Climate Research (TECLIM), Univ. catholique de Louvain, Louvain-la-Neuve, BELGIQUE

Abstract

In this study, the SPEROS-C model was modified to analyse erosion induced lateral and vertical soil C fluxes and their effects upon soil organic carbon (SOC) stocks in a small agricultural catchment. The model was applied for the period between 1950 and 2007 covering 30 years of conventional tillage (1950-1979) followed by 28 years of conservation tillage (1980-2007). In general, modelled and measured SOC stocks are in good agreement for 3 observed soil layers. Land management has a significant impact on the erosion induced C fluxes, leading to a predominance of lateral C export under conventional and of vertical C exchange between soil and atmosphere under conservation agriculture. Overall, the application of the soil conservation practices, with enhanced C inputs by cover crops and decreased erosion, significantly reduced the modelled erosion induced C loss of the test site. A first estimate suggests that C losses are very sensitive to magnitude and frequency of erosion events

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no2 [pp. 193-208]

Bibliographic references : 2 p.

Collation : 12 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2246

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 26261099 : Permanent link - XML version
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