"Guidelines for Soil Description issued by the FAO: table 19"@en . "ErosionActivityPeriod"@en . _:b12070 . _:b12065 _:b12072 . _:b12072 . . _:b12065 . _:b12070 . _:b12074 . _:b12072 . _:b12071 _:b12065 . _:b12074 . _:b12075 . _:b12074 . _:b12070 . . _:b12070 _:b12071 . _:b12075 . _:b12075 . _:b12074 . _:b12075 .