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Chloroform fumigation-extraction labile C pool (microbial biomass C "plus") shows high correlation to microbial biomass C in Argentinian and Brazilian soils
| Content Provider | Open Access Library (OALib) |
|---|---|
| Author | Costantini Alejandro De-Polli Helvécio Sampaio Pimentel Márcio Romaniuk Romina |
| Abstract | chloroform fumigation-incubation and chloroform fumigation-extraction approaches have significantly contributed to assess soil microbial biomass. some controversy is found in the literature about the suggestion to calculate microbial biomass carbon (mbc) without the subtraction of the un-fumigated control, in opposition to the originally proposed method that requires such subtraction. some authors consider the non-subtraction proceeding as a more robust method. nevertheless, values obtained without subtraction of a control include other labile organic fractions of soil carbon besides microbial biomass. therefore, due to the usefulness of this measurement we consider more appropriate to call it as chloroform-fumigation labile c pool or microbial biomass carbon "plus" (mbc plus). we used a vast series of data from soils of argentina and brazil under different management situations to verify whether mbc correlates to mbc plus. there was a significant statistical correlation between values of mbc obtained by fumigation-extraction method and the corresponding mbc plus. the mbc plus performed as well as mbc as an indicator to differentiate soil managements and their impact on soil quality. |
| ISSN | 18502067 |
| Journal | Ciencia del suelo |
| Publisher | Scientific Electronic Library Online |
| Publisher Date | 2007-01-01 |
| Access Restriction | Open |
| Subject Keyword | Labile carbon Chloroform fumigation-extraction Microbial biomass carbon Soil quality indicator. |
| Content Type | Text |
| Resource Type | Article |
