Microbial Diversity Indexes Can Explain Soil Carbon Dynamics as a Function of Carbon Source.

ABSTRACT: Mathematical models do not explicitly represent the influence of soil microbial diversity on soil organic carbon (SOC) dynamics despite recent evidence of relationships between them. The objective of the present study was to statistically investigate relationships between bacterial and fungal diversity indexes (richness, evenness, Shannon index, inverse Simpson index) and decomposition of different pools of soil organic carbon by measuring dynamics of CO2 emissions under controlled conditions. To this end, 20 soils from two different land uses (cropland and grassland) were incubated with or without incorporation of 13C-labelled wheat-straw residue. 13C-labelling allowed us to study residue mineralisation, basal respiration and the priming effect independently. An innovative data-mining app

SUBMITTER: Louis BP 

PROVIDER: S-EPMC4995005 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature