Bellamy et al. (2005)
Also: Bellamy et al. 2005
Carbon losses from all soils across England and Wales 1978–2003
Bellamy, P. H., Loveland, P. J., Bradley, R. I., Lark, R. M., & Kirk, G. J. (2005). Carbon losses from all soils across England and Wles 1978–2003. Nature, 437(7056), 245. Link to PDF
https://doi.org/10.1038/nature04038
References
All IPCC definitions taken from Climate Change 2007: The Physical Science Basis. Working Group I Contribution to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Annex I, Glossary, pp. 941-954. Cambridge University Press.