Microbial biomass and activity in contrasting soil materials after passage through the gut of the earthworm Lumbricus rubellus hoffmeister
作者： O. Daniel , J.M. Anderson
DOI: 10.1016/0038-0717(92)90209-G
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摘要: Earthworms (Lumbricus rubeltus) were fed on four different soils with light fraction organic material contents from 3.7 to 76.1% of the soil dry weightand water potentials standardized at — 8 kPa. Microbial biomass-C in soils, as measured a modified fumigation-extraction method, ranged 0.4 7.5mg C g−1 soil. After gut passage (6–8 h) microbial was not changed significantly but rates CO2 production, bacterial plate counts, moisture content and concentrations soluble organic-C higher casts compared ingested by earthworms.
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