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(Article of periodic en Anglais - 2011)

Document title

Evaluating the impact of soil redistribution on the in situ mineralization of soil organic carbon

Authors(s) and Affiliation(s)

VAN HEMELRYCK H. (1) ; GOVERS G. (1) ; VAN OOST K. (2) ; MERCKX R. (1) ;
(1) Dep. of Earth and Environmental Science, K.U., Leuven, BELGIQUE
(2) Earth and Life Inst., Georges Lemaîte Centre for Earth and Climate Research (TECLIM), U.C., Louvain, BELGIQUE

Abstract

This study aims to quantify the extent to which such increased mineralization occurs in a real field situation. Carbon dioxide (CO2)-efflux was measured in the field after an important erosion event for a continuous period of 112 days. The specific situation on the field ensured that almost none of eroded SOC was exported from the field. Field data were complemented by measurements on incubated, undisturbed soil core samples, in order to disentangle the contribution of environmental factors (moisture, temperature) from any erosional effect on CO2-efflux. Results of these measurements on the field showed that CO2-efflux was regulated by a complex interplay of different factors (mostly soil porosity, soil moisture and soil temperature). In combination with the incubation measurements, it could be concluded that the processes of erosion and transport led to an increased mineralization of SOC, as a result of aggregate breakdown and exposure of previously encapsulated SOC

Source

Article of periodic

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

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

Millesime : 2011, vol. 36, no4 [pp. 427-438]

Bibliographic references : 53 ref.

Collation : 6 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.2055

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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