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Soil fauna consumes substantial amounts of litter and can even consume the entire annual litterfall in some ecosystems. The assimilation efficiency of fauna may reach 50% but is usually much smaller. Soil fauna may affect soil organic matter (SOM) dynamics not only by assimilating litter but also by modifying the soil environment at many spatiotemporal scales. Litter processing by fauna usually results...
Use of natural tracers (in particular, δ13C and δ15N, total carbon and nitrogen) for discriminating and apportioning soil sources of eroded sediment has increased. Some critical issues, however, including the variability of such tracers over time and space, merit further investigation. This study used a 25 m grid in a 1.78 ha hydrologically-isolated permanent pasture field in SW England to assess...
Introduced here is a newly discovered, hard, high‑carbon, macroscopically homogenous, solid lignomor that is part of the natural decomposition product of mature, rainforest hardwood trees of the species myrtle beech (Nothofagus cunninghamii (Hook. f.) Øerst.). The substance, named cunnite, exhibits conchoidal fracture (indicating isotropic bonding), whereas all other tree decomposition products noted...
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