Gobrecht A. auteur aut IRD Gorretta N. auteur aut IRD Chevallier Tiphaine auteur aut IRD Benoit M. auteur aut IRD Roger J.M. auteur aut IRD Barthès Bernard auteur aut IRD text conferencePaper eng text/pdf reformatted digital access The objective of this study was to evaluate the potential of proximal hyperspectral imaging to (i) calibrate a model to predict soil respiration under controlled conditions, and (ii) to determine both spatial and temporal variations in soil respiration at a hundreds of micrometer scale. Calibration models based on spectra and respiration measured on standards were built then applied on hyperspectral images acquired on soil mesocosms (400 cm²), in order to predict their respiration pixel by pixel (0.2 mm²). The quality of the models was acceptable but their application to produce prediction maps faced some technical problems due to hyperspectral technology. specialized SOL PROPRIETE PHYSICOCHIMIQUE SPECTROSCOPIE SPECTROMETRIE INFRAROUGE MICROBIOLOGIE DU SOL RESPIRATION VARIATION SPATIALE VARIATION TEMPORELLE 068ANASOL NIR 2013 : International Conference on Near Infrared Spectroscopy, 16., La Grande Motte (FRA), 2013/06/02-07 5 multigr. Montpellier IRSTEA 2013 https://www.documentation.ird.fr/hor/fdi:010063290 [F B010063290] https://www.documentation.ird.fr/hor/fdi:010063290 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-07/010063290.pdf IRD - Base Horizon / Pleins textes 2015-01-05 2015-07-30 fdi:010063290 fre