Título:	Soil carbon pools in different pasture systems.
Autoria:	CARDOZO JUNIOR, F. M. CARNEIRO, R. F. V. LEITE, L. F. C. ARAUJO, A. S. F.
Afiliação:	FRANCISCO M. CARDOZO JUNIOR, UFPI; ROMERO F. V. CARNEIRO, UFPI; LUIZ FERNANDO CARVALHO LEITE, CPAMN; ADEMIR S. F. ARAUJO, UFPI.
Ano de publicação:	2016
Referência:	Spanish Journal of Agricultural Research, v. 14, n. 1, e0902, 2016.
Páginas:	5 p.
Conteúdo:	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.
Thesagro:	Carbono
Palavras-chave:	Substâncias húmicas Sistema agroflorestal
Digital Object Identifier:	http://dx.doi.org/10.5424/sjar/2016141-7939
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Nota Técnica/Nota científica (CPAMN)