%0 Conference Proceedings %9 ACTI : Communications avec actes dans un congrès international %A Gobrecht, A. %A Gorretta, N. %A Chevallier, Tiphaine %A Benoit, M. %A Roger, J.M. %A Barthès, Bernard %T Potential of proximal hyperspectral imaging to estimate the spatial and temporal variability of soil microbial respiration %S International conference on near infrared spectroscopy : picking up good vibrations %C Montpellier %D 2013 %L fdi:010063290 %G ENG %I IRSTEA %K SOL ; PROPRIETE PHYSICOCHIMIQUE ; SPECTROSCOPIE ; SPECTROMETRIE INFRAROUGE ; MICROBIOLOGIE DU SOL ; RESPIRATION ; VARIATION SPATIALE ; VARIATION TEMPORELLE %P 5 multigr. %U https://www.documentation.ird.fr/hor/fdi:010063290 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-07/010063290.pdf %W Horizon (IRD) %X 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. %B NIR 2013 : International Conference on Near Infrared Spectroscopy %8 2013/06/02-07 %$ 068ANASOL