title: Enzymic activity and humus content in Eastern Siberian soils.
mesh_terms: D001419:Bacteria / Q000201:enzymology / Q000302:isolation & purification; D006812:Humic Substances / Q000032:analysis*; D006867:Hydrolases / Q000378:metabolism*; D010088:Oxidoreductases / Q000378:metabolism*; D012800:Siberia; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology
chemical_list: D006812:Humic Substances; D012987:Soil; D010088:Oxidoreductases; D006867:Hydrolases