Substrate quality effects on C stocks in bulk soil and fractions under field conditions

Abstrakt

To investigate the effects of substrate quality (evaluated via lignin:N ratios) on soil carbon stabilization under realistic field conditions, we employed physical fractionations, lignin extractions, and compared C stocks in bulk soils (clay-rich Eutric Regosols) and fractions from soils receiving either high- or low-quality substrate inputs in a common garden experiment.

Klíčová slova

• C saturation
• C stocks
• common garden
• lignin:N
• MAOM
• oPOM