Título:	Fractions of organic matter and soil carbon balance in different phases of an agroforestry system in the cerrado : a ten-year field assessment
Autor(es):	Santos, Juscelina Arcanjo dos Santos, Anselmo de Deus Costa, Camila Rodrigues Araujo, Alyson Silva de Leite, Gilberto Gonçalves Coser, Thais Rodrigues Figueiredo, Cícero Célio de
ORCID:	https://orcid.org/0000-0001-8756-0307
Afiliação do autor:	University of Brasília, Faculty of Agronomy and Veterinary Medicine University of Brasília, Department of Forest Sciences University of Brasília, Faculty of Agronomy and Veterinary Medicine University of Brasília, Faculty of Agronomy and Veterinary Medicine University of Brasília, Faculty of Agronomy and Veterinary Medicine University of Brasília, Faculty of Agronomy and Veterinary Medicine University of Brasília, Faculty of Agronomy and Veterinary Medicine University of Brasília, Faculty of Agronomy and Veterinary Medicine
Assunto:	Matéria orgânica do solo Estoque de carbono Carbono da biomassa
Data de publicação:	10-Abr-2024
Editora:	MDPI
Referência:	SANTOS, Juscelina Arcanjo dos et al. Fractions of organic matter and soil carbon balance in different phases of an agroforestry system in the cerrado: a ten-year field assessment. Soil Systems, v. 8, n. 2, 44, 2024. DOI: https://doi.org/10.3390/soilsystems8020044. Disponível em: https://www.mdpi.com/2571-8789/8/2/44. Acesso em: 17 abr. 2024.
Abstract:	Integrated production systems composed of trees, crops and pastures have shown good results in improving soil quality and the capacity to store carbon in the soil, being efficient in mitigating greenhouse gas emissions. Despite this, changes in carbon stocks and soil organic matter fractions in the initial stages of implementing an agroforestry system remain unclear. This study evaluated the carbon balance and the dynamics of soil organic matter fractions in an agroforestry system conducted over a decade. Total carbon, labile carbon, carbon from particulate organic matter, organic carbon associated with minerals and inert carbon were determined at depths 0–10 cm, 10–20 cm and 20–40 cm. Soil carbon stocks were also estimated for the 0–40 cm depth. Total carbon increased in the agroforestry system compared with a low-productivity pasture. The total carbon stock in the last growing season (68.57 Mg ha−1) was close to the original soil stocks under native Cerrado vegetation (76.5 Mg ha−1). After 10 years, there was a positive balance in the soil carbon stock of both the total carbon and the soil organic matter fractions. The successional agroforestry system is a good alternative to increasing soil total carbon stocks and labile and non-labile fractions of soil organic matter.
Unidade Acadêmica:	Faculdade de Agronomia e Medicina Veterinária (FAV) Faculdade de Tecnologia (FT) Departamento de Engenharia Florestal (FT EFL)
Licença:	© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
DOI:	https://doi.org/10.3390/soilsystems8020044
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