Little effects on soil organic matter chemistry of density fractions after seven years of forest soil warming.

ABSTRACT: Rising temperatures enhance microbial decomposition of soil organic matter (SOM) and thereby increase the soil CO₂ efflux. Elevated decomposition rates might differently affect distinct SOM pools, depending on their stability and accessibility. Soil fractions derived from density fractionation have been suggested to represent SOM pools with different turnover times and stability against microbial decomposition. To investigate the effect of soil warming on functionally different soil organic matter pools, we here investigated the chemical and isotopic composition of bulk soil and three density fractions (free particulate organic matter, fPOM; occluded particulate organic matter, oPOM; and mineral associated organic matter, MaOM) of a C-rich soil from a long-term warming experimen

SUBMITTER: Schnecker J 

PROVIDER: S-EPMC5198888 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature