Short Communication: Soil carbon pools in different pasture systems

  • Francisco M. Jr. Cardozo Federal University of Piauí, Agricultural Science Center, Pos-Graduation Program in Animal Science, Teresina, PI, 64049-550
  • Romero F. V. Carneiro Federal University of Piauí, Agricultural Science Center, Pos-Graduation Program in Animal Science, Teresina, PI, 64049-550
  • Luiz F. C. Leite Embrapa Mid-North, Av. Duque de Caxias, SN, Teresina, PI, 64000-000
  • Ademir S. F. Araujo Federal University of Piauí, Agricultural Science Center, Soil Quality Lab., Teresina, PI, 64000-000
Keywords: humic substances, carbon management, agroforestry system


The aim of this study was to assess the carbon pools of a tropical soil where the native forest was replaced with different pasture systems. We studied five pasture production systems, including four monoculture systems with forage grasses such as Andropogon, Brachiaria, Panicum, and Cynodon, and an agroforestry system as well as a native vegetation plot. Greater availability of fulvic acid was detected in the agroforestry system as compared with that in the other systems. Higher lability of C was detected in the Andropogon system during the dry and rainy seasons and during the dry season in Cynodon. During the dry season, all pastures systems showed deficits in the net removal of atmospheric CO2. The structure and practices of the agroforestry system enables more carbon to be sequestered in the soil as compared with the monoculture pasture, suggesting that it is an important practice to mitigate climatic change and to improve soil quality.


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How to Cite
CardozoF. M. J., CarneiroR. F. V., LeiteL. F. C., & AraujoA. S. F. (2016). Short Communication: Soil carbon pools in different pasture systems. Spanish Journal of Agricultural Research, 14(1), e11SC01.
Soil science