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(Article of periodic en Anglais - 2012)

Document title

Plant root traits affecting the resistance of soils to concentrated flow erosion

Authors(s) and Affiliation(s)

BURYLO M. (1) ; REY F. (1) ; MATHYS N. (2) ; DUTOIT T. (3) ;
(1) Irstea, Centre de Grenoble, UR EM, Saint Martin d'Hères, FRANCE
(2) IRSTEA Grenoble, Unité de Recherche ETNA, Saint-Martin d'Hères, FRANCE
(3) IMEP, UMR-CNRS, IRD, IUT d'Avignon, Avignon, FRANCE

Abstract

Flume experiments were carried out to investigate the effect of the root systems of 3 species having contrasted ecological requirements from eroded marly lands of the French Southern Alps [Robinia pseudo acacia (tree), Pinus nigra austriaca (tree) and Achnatherum calamagrostis (grass)], on concentrated flow erosion rates. Ten functional traits, describing plant morphological and biomechanical features, were measured on each tested sample. Analyses were performed to identify traits that determine plant root effects on erosion control. Principal components analysis showed that the erosion-reducing potential of plant species was negatively correlated to root diameter and positively correlated to the percentage of fine roots. The results highlighted the role of small flexible roots in root reinforcement processes, and suggested the importance of high root surface and higher tensile strength for soil stabilization

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, no14 [pp. 1463-1470]

Bibliographic references : 1 p.

Collation : 5 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.3248

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