Soil Spectral Databases

This paper identifies and discusses two trends in the digitalization of soil research data: (1) creation maintenance databases containing reflectance spectra upper horizons range 300–2500 nm information on main physicochemical properties these horizons; (2) accumulation actualization already published visible (400–750 nm) incorporation data all constituting profile into spectral databases, which makes it possible to identify both individual entire profiles. The second trend widely uses color parameters soils; this applies international optical systems Russian-specific indicatory systems. algorithms used such can be applied studies involving open-access global libraries.