International Union of Soil Sciences #BTF�SFGFSFODJBM�NVOEJBM� EFM�SFDVSTP�TVFMP 6O�NBSDP�DPODFQUVBM�QBSB�DMBTJmDBDJØO � DPSSFMBDJØO�Z�DPNVOJDBDJØO�JOUFSOBDJPOBM…