ABSTRACT
Remote sensing of salt-affected soils is favored by a set of factors and conditions peculiar to halomorphic soils, especially the concentration of salts at the soil surface in the form of white crusts with high reflectance and the characteristic reflectance features controlled by salt mineralogy. However, the identification of salt-affected soils through remote sensing is also hampered by the peculiar way salts distribute at the soil surface, in particular their patchy occurrence, gradual spatial variations, and mixture with other soil properties that interfere with salt reflectance. This calls for an approach for classifying and mapping salt-affected soils that is able to cope with their discontinuous and fuzzy distribution on the landscape.
