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(Article of periodic en Anglais - 2010)

Document title

Soil organic matter formation along a chronosequence in the Morteratsch proglacial area (Upper Engadine, Switzerland)

Authors(s) and Affiliation(s)

EGLI M. (1) ; MAVRIS C. (1) ; MIRABELLA A. (2) ; GIACCAI D. (2) ;
(1) Dep. of Geography, Univ., Zurich, SUISSE
(2) IST. Sperimentale per lo studio e la difesa del Suelo, Centro di ricerca per l'Agrobiologia e la Pedologia, Firenze, ITALIE

Abstract

The AA. study the formation of soil organic matter and its different fractions within a time span of 0–150 years. They investigated a chronosequence of very young soils in the proglacial area Morteratsch (Swiss Alps) to derive time-trends of soil organic matter accumulation and evolution. With time, the quality of soil organic matter changed : a decrease of hydrophobicity, an increase in aromatic compounds in the bulk soil and a decrease in phenolic functional groups in the heaviest density fraction were detectable with increasing age. In general, stable organic matter as well as the density fraction > 2 g/cm3 had a low C/N ratio and were enriched in proteinaceous materials. The adsorption of proteinaceous materials points to a strong organo-mineral association. This process has existed since the very beginning of soil formation

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2010, vol. 82, no2 [pp. 61-69]

Bibliographic references : 43 ref.

Collation : 9 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2010.05.001

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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