Spatial discrimination of salt- and sodium-affected soil surfaces

alkaline soils bolivia bolivie capa arable del suelo cartografia cartographie cartography chemical soil types couche arable mapping remote sensing sales saline soils salinidad salinity salts satellite satellite imagery satellites sel sodio sodium soil soil texture soil types sol sol alcalin sol salin suelo suelo alcalino suelo salino textura del suelo texture du sol tipos de suelos top soil type de sol type de sol chimique vegetation