Altered rates of native soil organic matter (SOM) mineralisation in the presence of labile C
substrate ('priming'), is increasingly recognised as central to the coupling of plant and soil …

The desiccation of upper soil horizons is a common phenomenon, leading to a decrease in
soil microbial activity and mineralization. Recent studies have shown that fungal …

Soil organic matter (SOM) is the dominant store of nutrients required for plant growth, but the
availability of these nutrients is dependent on transformations mediated by the microbial …

Ecosystem respiration (Reco) is one of the largest terrestrial carbon (C) fluxes. The effect of
climate change on Reco depends on the responses of its autotrophic and heterotrophic …

Soil carbon in permafrost ecosystems has the potential to become a major positive feedback
to climate change if permafrost thaw increases heterotrophic decomposition. However …

Old soil carbon (C) respired to the atmosphere as a result of permafrost thaw has the
potential to become a large positive feedback to climate change. As permafrost thaws …

Liming is a common management practice used to achieve optimum pH for plant growth in
agricultural soils. Addition of lime to the soil, however, may cause CO2 release when the …

While most models describing soil organic matter dynamics relate the turnover of soil
organic matter to its chemical structure, there is increasing evidence that microbial …

Carbon exchange across the soil–atmosphere interface has major implications for
environmental change, but a consensus on the effect of temperature on soil organic matter …

Background and aims The intrinsic nitrogen (N) supply capacity of soil is central to
understanding the productivity of natural plant communities, and essential in the context of …