Effect of low temperature and soil type on the decomposition rate of soil organic carbon and clover leaves, and related priming effect

In conclusion, the temperature sensitivity of the decomposition was in the order: priming < plant litter < sandy soil SOC = clay soil SOC. For the purpose of modelling, we present parameterised equations for mineralisation rates of SOC and clover leaves as function of soil temperature range 0-15 °C. Regarding modelling of priming, there is scope for relating it to litter decomposition and the influence of soil type on the diffusion of enzymes from microorganisms around the litter surface. The effect of soil type on plant litter decomposition and soil priming should be considered in models that predict nitrogen mineralisation based on the C/N stoichiometry of substrates and decomposition products.