1. Bernoux, M., Carvalho, M. D. C. S., Volkoff, B., and Cerri, C. C.: 2001, ?CO2 emission from mineral soils following land-cover change in Brazil?, Global Change Biol. 7, 779?787.
2. Black, C. A.: 1965, Methods of Soil Analysis?Part 2. Chemical and Microbiological Properties, American Society of Agronomy, Inc. Publisher, Madison, Wisconsin, USA, pp. 1367?1378.
3. Canadell, J. G.: 2002, ?Land use effects on terrestrial carbon sources and sinks?, Sci. China(series C) 45(suppl.), 1?9.
4. Davidson, E. A. and Ackerman, I. L.: 1993, Changes in soil carbon inventories following cultivation of previously untilled soil?, Biogeochemistry 20, 161?193.
5. Gregorich, E. G. and Janzen, H. H.: 1996, ?Storage of soil carbon in the light fraction and macroorganic matter?, in Carter, M. R. and Stewart, B. A. (eds.), Structure and Organic Matter Storage in Soils, Lewis Publishers, CRC Press, Boca Raton, FL, pp.167?190.