Characterization of woody roots located in dikes by near-infrared spectroscopy and chemometrics

G. Bambara (1, 2) , C. Curt (1) , M. Vennetier (3, 4) , P. Mériaux (1) , C. Zanetti (5) , P. Vanloot (2)

1 UR OHAX - Ouvrages hydrauliques et hydrologie
2 LISA - Laboratoire d'Instrumentation et Sciences Analytiques
3 UR EMAX - Ecosystèmes méditerranéens et risques
4 ECCOREV - Ecosystèmes continentaux et risques environnementaux
5 ARBEAU SOLUTIONS

The decomposition of tree stump and roots is highly detrimental for the safety of dikes. Root decomposition in the fills generates significant risks, particularly a risk of internal erosion by piping. In order to characterize root decomposition and assess decomposition rate, root samples were buried in experimental site. The Near-Infrared spectroscopy (NIR) and analysis of the spectral data by chemometric tools, allowed distinguishing and predicting decomposition times, tree species and root diameters.

Mots clés: ROOTS DECOMPOSITION; ROOTS CHARACTERIZATION; DIGUE EN TERRE; RACINE; DECOMPOSITION; SPECTROSCOPIE; REGRESSION LINEAIRE; ANALYSE EN COMPOSANTE PRINCIPALE; NIR SPECTROSCOPY; PRINCIPAL COMPONENT ANALYSIS (PCA); PARTIAL LEAST SQUARE REGRESSION (PLS-REGRESSION); DIGUE

Domaines: Sciences de l'environnement

G. Bambara, C. Curt, M. Vennetier, P. Mériaux, C. Zanetti, et al.. Characterization of woody roots located in dikes by near-infrared spectroscopy and chemometrics. ICNIRS 2013 16th International Conference on Near Infrared Spectroscopy, Jun 2013, La Grande-Motte, France. p. 274 - p. 279. ⟨hal-00958518⟩