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(Article of periodic en Anglais - 2012)

Document title

Vegetation influence on organic matter source of black soils from high altitude rocky complexes traced by 13C and 15N isotopic techniques

Authors(s) and Affiliation(s)

BALIEIRO F.C. (1) ; BENITES V.M. (1) ; CAIAFA A.N. (2) ; RODRIGUES ALVES B.J. (3) ; FONTANA A. (1) ; PASQUALOTO CANELLAS L. (4) ;
(1) Embrapa Solos, Rio de Janeiro, BRESIL
(2) Univ. Federal do Reconcavo da Bahia, Cruz das Almas, BRESIL
(3) Embrapa Agrobiologia, Seropedica, BRESIL
(4) Univ. Estadual do Norte Fluminense Darcy Ribeiro, Rio de Janeiro, BRESIL

Abstract

The organic soil layer (0-35 cm) of 17 sites under high altitude rocky complexes (HARC) was sampled in eastern Brazil, in the Espinhaço and Mantiqueira Ranges, to evaluate the relationship of vegetation type and carbon and nitrogen isotopic composition of bulk soil and humic acid (HA). The majority of sites in the HARC presented a soil organic matter originated from C3-vegetation and demonstrated an intense N cycling based on the δ15N data. Even though charcoal could be suggested as a component of soil genesis for most of the HARC sites, the raised data was not consistent to consider fire a key process for soil organic matter existence in these areas

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2012, vol. 99 [pp. 97-101]

Bibliographic references : 41 ref.

Collation : 1 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.06.004

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