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Open AccessArticle

Effect of Soil Use and Coverage on the Spectral Response of an Oxisol in the VIS-NIR-MIR Region

Faculty of Engineering, National University of Colombia, Carrera 45#26-85, 111321 Bogota, Colombia
Author to whom correspondence should be addressed.
Academic Editors: Carosena Meola and Gonzalo Pajares Martinsanz
J. Imaging 2017, 3(1), 10;
Received: 1 January 2017 / Revised: 27 January 2017 / Accepted: 8 February 2017 / Published: 16 February 2017
In this study, the spectral responses obtained from a Typic Red Hapludox (oxisol) were analyzed under different uses and occupations: Ficus elastica cultivation, Citrus + Arachis association cultivation, transitional crops, forest, Mangifera indica, Anacardium occidentale, Elaeis guineensis (18 years), Brachiaria decumbens, Brachiaria brizantha, and Musa × paradisiaca + Zea mays at the La Libertad Research Center in the department of Meta in Colombia (4°04′ North latitude, 73°30′ West longitude, 330 MAMSL). Sampling was performed with four random replicates of the horizon A and B to determine the contents of organic carbon (CO), pH, exchangeable acidity (Ac. I), cation exchange capacity (Cc), P, Ca, Mg, K, Na, sand, lime, and clay and spectral responses were obtained in the visible band (VIS), near infrared (NIR), and infrared (MIR) for each sample under laboratory conditions. A comparison was made between the obtained spectra, determining the main changes in soil properties due to their use and coverage. Variation of soil characteristics such as color, organic carbon content, presence of ferrous compounds, sand, silt, and clay content and mineralogy allow the identification of the main spectral changes of soils, demonstrating the importance of the use of reflectance spectroscopy as a tool of comparison and estimation between physical-chemical properties of the soils. View Full-Text
Keywords: spectroscopy; infrared nearby; reflectance; spectral curve spectroscopy; infrared nearby; reflectance; spectral curve
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Martín-López, J.M.; Quintero-Arias, G. Effect of Soil Use and Coverage on the Spectral Response of an Oxisol in the VIS-NIR-MIR Region. J. Imaging 2017, 3, 10.

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