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Proceedings Paper

Experimental study of hyperspectral responses of plants grown on mud pit soil
Author(s): Anthony Credoz; Rémy Hédacq; Christophe Barreau; Dominique Dubucq
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Paper Abstract

On-shore, hyperspectral imagery is currently used to detect and measure remotely oil spill extension for environmental purpose and hydrocarbon seepage for petroleum exploration. In this study, variations of hyperspectral signatures of vegetal species have been analyzed at the laboratory scale to detect indirectly the potential impacts on the plants of crude oil seepage and spills in the soil. Experimental study has been performed under greenhouse to simulate the exposure of two species of plants to a co-contamination of hydrocarbons and heavy metals contained in sludge from mud pit. Maize and bramble have been selected for this study since they are cultivated and spontaneous species respectively located in the region of interest. Five levels of exposure were performed over a period of 100 days. Reflectance evolution of each plant was measured with a spectroradiometer from 350 nm to 2500 nm with a dedicated leaf clip. Net morphological impacts were observed for maize with a global reduction of plants and leaves sizes correlated to the level of cocontamination. Hyperspectral measurement on maize revealed a higher reflectance in the absorption wavelength of water at 1450 and 1900 nm due to contamination and water stress. Reflectance in the visible increased at 600 nm (red interval) for bramble plants exposed to co-contamination. Then, the level of reflectance in the NIR decreased between 700 and 800 nm (red-edge) and absorption of water also decreased at 1450 and 1900 nm as described previously for the maize.

Paper Details

Date Published: 18 October 2016
PDF: 6 pages
Proc. SPIE 10005, Earth Resources and Environmental Remote Sensing/GIS Applications VII, 100051E (18 October 2016); doi: 10.1117/12.2239606
Show Author Affiliations
Anthony Credoz, TOTAL S.A. (France)
Pôle d’Etudes et de Recherche de Lacq (France)
Rémy Hédacq, TOTAL S.A. (France)
Pôle d’Etudes et de Recherche de Lacq (France)
Christophe Barreau, TOTAL S.A. (France)
Pôle d’Etudes et de Recherche de Lacq (France)
Dominique Dubucq, TOTAL S.A. (France)
Pôle d’Etudes et de Recherche (France)

Published in SPIE Proceedings Vol. 10005:
Earth Resources and Environmental Remote Sensing/GIS Applications VII
Ulrich Michel; Karsten Schulz; Manfred Ehlers; Konstantinos G. Nikolakopoulos; Daniel Civco, Editor(s)

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