ABSTRACT
The traditional approach to soil salinity mapping from sole field observations and laboratory determinations is challenged, arguing that it is expensive and time-consuming. It must be recognized that it is now quite some time that such an approach is no longer implemented at local and regional scales, and that remote sensing has been integrated to varying degrees in salinity studies over the last three decades. There are, however, some key aspects where advances in remote sensing technology contributed to largely overhaul the more traditional ways of salinity mapping, with for instance aerial photographs. Improvements in temporal, spatial, and spectral resolutions have considerably increased the impact of remote sensing in salinity assessment, mapping, and monitoring.
