IGB

Connexion

(Article of periodic en Anglais - 2012)

Document title

Lignin signature as a function of land abandonment and erosion in dry luvisols of SE Spain

Authors(s) and Affiliation(s)

DE BAETS S. (1) ; VAN OOST K. (1) ; BAUMANN K. (2) ; MEERSMANS J. (3) ; VANACKER V. (1) ; RUMPEL C. (2) ;
(1) Earth and Life Inst. (ELI), Georges Lemaître Centre for Earth and Climate Research (TECLIM), Univ. catholique de Louvain, Louvain-la-Neuve, BELGIQUE
(2) UMR Bioemco (Biogéochimie et Ecologie des Milieux continentaux), INRA, CNRS, UPMC, Thiverval-Grignon, FRANCE
(3) Inst. National de la Recherche Agronomique (INRA), Centre de Recherche, Orléans, FRANCE

Abstract

To get insight into the evolution of soil organic carbon (SOC) composition along a land use and topographical gradient, differences in lignin contribution to SOC were determined at different soil depths in the Mediterranean region of SE Spain. Three deposition locations, three positions on the hillslope and three zones on top of the hillslope (shoulder) were selected on croplands and fields that were abandoned since 10 and 50 years, respectively. Land use change was identified as a driver for the observed gradients in lignin, SOC and N in these semi-arid ecosystems. Abandoned sites were highest in soil lignin, which could be related to the higher lignin input. For deposition and shoulder positions lignin was less degraded at abandoned sites compared to cultivated sites. This study indicates that lignin preservation is enhanced by low soil N availability (high C:N ratio)

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2012, vol. 93 [pp. 78-86]

Bibliographic references : 42 ref.

Collation : 7 fig., 5 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.01.014

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 26391130 : Permanent link - XML version
Powered by Pxxo