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(Article of periodic en Anglais - 2013)

Document title

Effects of interrill erosion, soil crusting and soil aggregate breakdown on in situ CO2 effluxes

Authors(s) and Affiliation(s)

BREMENFELD S. (1) ; FIENER P. (1 2) ; GOVERS G. (3) ;
(1) Geographisches Inst., Univ., Köln, ALLEMAGNE
(2) Indo-German Centre for Sustainability, Indian Inst. of Technology Madras, Chennai, INDE
(3) Physical and Regional Geography Research Group, Katholieke Univ., Leuven, BELGIQUE

Abstract

A set of rainfall simulations were carried out on bare loess-burden soil with different antecedent soil moisture content. All treatments were compared with controls protected from rain drop impact using a fine-meshed geotextile. As expected, runoff and sediment delivery was significantly larger on bare compared to covered soils, while surface runoff and sediment delivery increased (in most cases) with rising antecedent soil moisture as well as rainfall duration. Crust thickness increased with antecedent soil moisture and rainfall intensity and was in general smaller for the controls. However, variations in crust thickness did not result in significant differences in in situ measured CO2 effluxes. Also the destruction of the soil crust after 6 to 7 days of measurements did not have a significant effect. This leads to the conclusion that crusting and interrill erosion has no or only a minor effect on in situ CO2 effluxes

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 104 [pp. 14-20]

Bibliographic references : 41 ref.

Collation : 7 fig.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.12.011

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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