. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Sed_OrgMatter"@en . . . . . . . . "SDN:P02::STOM" . . . . "Parameters quantifying the proportion of organic material in a soil or sediment sample"@en . . . . . . "accepted"@en . . "Concentration of organic matter in sediments"@en . . . "Sed_OrgMatter" .