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The goal of this study was the quantitative mapping of soil salinity from soil reflectance spectroscopy using airborne and/or spaceborne optical data. Generally, the reflectance spectra of agricultural lands contain a mixture of information of soil and vegetation. In addition, the spectra observed at the sensor are affected by the atmosphere and the aspect of topography. In this study, we corrected...
With the aim of early detection of soil salinity, this study developed a method to quantitatively estimate soil salinity in arid and semi-arid environments using SWIR reflectance spectroscopy. Focusing on the soil spectral characteristics occurring around 2000 nm, we determined, using subset analysis, that the spectral wavelength ranges which provide the greatest diagnostic information relating to...
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