Publications des scientifiques de l'IRD

Kaboré T. W., Pansu Marc, Hien E., Brunet Didier, Barthès Bernard, Houot S., Coulibaly A., Zombré P., Thuriès L., Masse Dominique. (2012). Near infrared reflectance spectroscopy applied to model the transformation of added organic materials in soil. Journal of Near Infrared Spectroscopy, 20 (3), p. 339-351. ISSN 0967-0335.

Titre du document
Near infrared reflectance spectroscopy applied to model the transformation of added organic materials in soil
Année de publication
2012
Type de document
Article référencé dans le Web of Science WOS:000306096300002
Auteurs
Kaboré T. W., Pansu Marc, Hien E., Brunet Didier, Barthès Bernard, Houot S., Coulibaly A., Zombré P., Thuriès L., Masse Dominique
Source
Journal of Near Infrared Spectroscopy, 2012, 20 (3), p. 339-351 ISSN 0967-0335
Raw, mixed and composted organic materials (OM) from agricultural and urban wastes were subjected to biochemical analyses, near infrared (NIR) reflectance spectroscopy and laboratory incubations. Respiration during incubations was accurately predicted using a decomposition model [transformation of added organic materials, (TAO)] of very labile, intermediary resistant, and stable OM fractions. Calibrations using NIR spectra were developed to determine the very labile and stable fractions of OM used to predict three-month OM mineralisation in soil. This study has confirmed that OM decomposition is mainly driven by OM quality on a short-term basis. The wavelengths contributing heavily to the prediction of very labile and stable OM components and molecular functions of these fractions were identified. The resulting TAO-NIR spectroscopy model is an efficient tool to study the degradation of natural molecules and its management for plant growth and sustainability of ecosystems. As a sub-model of a more complex C cycle model, it can instantaneously simulate labile and stable fractions of various organic inputs in soil and, as a non-destructive and easily portable spectroscopic method, could be used to assess C dynamics on a regional scale.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Pédologie [068]
Localisation
Fonds IRD [F B010057086]
Identifiant IRD
fdi:010057086
Contact