19 September 2016 Study of variations in soil water potential with the incorporation of charcoal and carbon nanotubes through infrared thermal images
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Abstract
Different concentrations of charcoal and carbon nanotubes were incorporated in different mix types of soil samples, these were previously chemically characterized, and physically grain standardized, then the water potential was measured by traditional procedures, which need to consider the water composition and the soil salinity to achieve an accurate measurement, and by infrared thermal images where the water potential was correlated with the superficial emissivity. It was observed that the organic incorporation increases the water potential but it depends of soil gradation, a biggest increment of the water potential was observed in a poorly graded soil than that observed in a well graded soil; the nanotubes in low concentrations do not present considerable changes in the water potential, and in high concentrations the cost is not profitable. It was analyzed the minimum concentration changes of charcoal and nanotubes in the soil that can be measured with thermal emissivity, and the deepness at which the infrared thermal images can measure, also it was studied the rate of water drain in the different soils, and the ability of follow this with thermal sequence of images.
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Carlos Villaseñor-Mora, Arturo González-Vega, Víctor H. Hernández, "Study of variations in soil water potential with the incorporation of charcoal and carbon nanotubes through infrared thermal images", Proc. SPIE 9975, Remote Sensing and Modeling of Ecosystems for Sustainability XIII, 99750A (19 September 2016); doi: 10.1117/12.2237393; https://doi.org/10.1117/12.2237393
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