Soils are an important site of carbon storage. Climate is generally regarded as one of the
primary controls over soil organic carbon,, but there is still uncertainty about the direction …

The molecular composition of soil organic carbon remains contentious. Microbial-, plant-and
fire-derived compounds may each contribute, but whether they vary predictably among …

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A large source of uncertainty in present understanding of the global carbon cycle is the
distribution and dynamics of the soil organic carbon reservoir. Most of the organic carbon in …

Carbon (C) buried deep in soil (below 1 m) is often hundreds to thousands of years old,
though the stability and sensitivity of this deep C to environmental change are not well …

Recent improvements in our understanding of the dynamics of soil carbon have shown that
20–40% of the approximately 1,500 Pg of C stored as organic matter in the upper meter of …

Soil organic matter can release carbon dioxide to the atmosphere as the climate warms.
Organic matter sorbed to reactive (iron-and aluminium-bearing) soil minerals is an important …

Physical and chemical stabilisation mechanisms are now known to play a critical role in
controlling carbon (C) storage in mineral soils, leading to suggestions that climate warming …

Soils contain the largest near-surface reservoir of terrestrial carbon and so knowledge of the
factors controlling soil carbon storage and turnover is essential for understanding the …

Soil organic matter (OM) represents a key C pool for climate regulation but also an essential
component for soil functions and services. Scientific research in the 21st century has …