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(Article of periodic en Anglais - 2010)

Document title

Utilization of near infrared reflectance spectroscopy (NIRS) to quantify the impact of earthworms on soil and carbon erosion in steep slope ecosystem. A study case in Northern Vietnam

Authors(s) and Affiliation(s)

JOUQUET P. (1 2) ; HENRY-DES-TUREAUX T. (1 2) ; MATHIEU J. (2 3) ; THU T.D. (1) ; DUC T.T. (1) ; ORANGE D. (1 2) ;
(1) SFRI-IWMI-IRD, Hanoï, VIET NAM
(2) IRD, UMR 211 Bioemco, Equipe Transferts, Bondy, FRANCE
(3) UPMC - UMR 7618 Bioemco, NCEAS, Santa Barbara, ETATS-UNIS

Abstract

In this study, the AA. used Near Infrared Reflectance Spectroscopy (NIRS) to quantify the proportion of soil aggregate in eroded soil coming from earthworm activity. This was done by generating NIRS signatures corresponding to different soil surface aggregates (above-ground soil casts produced by earthworms vs. surrounding topsoil). In order to test this approach, they compared the NIRS-signature of eroded soil sediments to those of earthworms' casts and of the surrounding soils. Their results strongly supported that NIRS spectra might be used as “fingerprints” to identify the origin of soil aggregates. Although earthworms are generally assumed to play a favorable role in promoting soil fertility and ecosystem services, this method shows that cast aggregates constitute about 36 and 77% of sediments in two tropical plantations

Source

Article of periodic

published at : Catena / ISSN 0341-8162

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

Millesime : 2010, vol. 81, no2 [pp. 113-116]

Bibliographic references : 22 ref.

Collation : 3 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2010.01.010

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