Título:	Soil carbon stock and indices in sandy soil afected by Eucalyptus Harvest residue management in the South of Brazil.
Autoria:	SÃO JOSÉ, J. F. B. de VARGAS, L. K. LISBOA, B. B. VIEIRA, F. C. B. ZANATTA, J. A. ARAUJO, E. F. BAYER, C.
Afiliação:	JACKSON FREITAS BRILHANTE DE SÃO JOSÉ, SUSTAINABLE PRODUCTION AND IRRIGATION OF RIO GRANDE DO SUL; LUCIANO KAYSER VARGAS, SUSTAINABLE PRODUCTION AND IRRIGATION OF RIO GRANDE DO SUL; BRUNO BRITTO LISBOA, SUSTAINABLE PRODUCTION AND IRRIGATION OF RIO GRANDE DO SUL; FREDERICO COSTA BEBER VIEIRA, UNIVERSIDADE FEDERAL DO PAMPA; JOSILEIA ACORDI ZANATTA, CNPF; ELIAS FRANK ARAUJO, CELULOSE RIOGRANDENSE; CIMELIO BAYER, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL.
Ano de publicação:	2023
Referência:	Soil Systems, v. 7, n. 93, 2023.
Conteúdo:	Abstract: There has been limited research on the effect of eucalyptus harvest residue management on soil organic carbon (SOC) in subtropical environments. This research evaluated the effect on soil C indices of the following eucalyptus harvest residue managements: AR, with all forest remnants left on the soil; NB, where bark was removed; NBr, in which branches were removed; NR, which removed all residues; and NRs, which is same as NR but also used a shade net to prevent the litter from the new plantation from reaching the soil surface. C stocks within the soil depths of 0?20 cm and 0?100 cm increased linearly with the C input from eucalyptus harvest residues. In the layer of 0?20 cm, the lowest soil C retention rate was 0.23 Mg ha−1 year−1, in the NR treatment, while in the AR treatment, the retention rate was 0.68 Mg ha−1 year−1. In the 0?100 cm layer, the highest C retention rate was obtained in the AR (1.47 Mg ha−1 year−1). The residues showed a high humification coefficient (k1 = 0.23) and a high soil organic matter decomposition rate (k2 = 0.10). The carbon management index showed a close relationship with the C input and tree diameter at breast height.
NAL Thesaurus:	Plantation forestry Carbon sequestration
Palavras-chave:	Soil health Forest residues Carbon management index Sequestro de carbono Residuos florestais Plantação florestal
Digital Object Identifier:	https://doi.org/10.3390/soilsystems7040093
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPF)