Sulfate sorption in nonvolcanic Andisols and Andic soils from Galicia, NW Spain

Soils with andic soil properties generally retain large amounts of SO42−, a feature related to their elevated contents of short-range ordered minerals and/or insoluble Al–humus compounds. The objective of this study was to investigate the relationships between SO42− sorption and contents of Al and Fe compounds in soils from Galicia, NW Spain, with andic soil properties. Nineteen soils derived from gabbros, amphibolites, basic granulites,...