Potential of sequestration carbon in soil and organic matter dynamics in degraded pastures in Brazil

• Grant number: 14/21273-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: January 01, 2015
• End date: February 28, 2018
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
• Principal Investigator: Carlos Eduardo Pellegrino Cerri
• Grantee: Daniele Costa de Oliveira
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

In Brazil, about 70% of the pasture areas show some stage of degradation, which is marked, in most cases, the abrupt reduction in stocks of soil organic matter. Despite being the world leader in beef production, Brazil has low productivity, 0.7 AU ha-1 approximately. The intensification of these areas may reflect in a case of double benefit, increasing the production of cattle in the area already converted and carbon stocks in the soil. With the development of this project, it aims to quantify the potential for carbon sequestration in degraded pasture of Brazil and elucidate the dynamics of soil organic matter recovery in these areas. For this, the project is divided into five main parts: 1 - Formation of database changes in stocks of soil carbon in pasture recovery; 2 - Modeling the data collected; 3 - Modeling the Brazilian potential for carbon sequestration in pasture; 4 - Predicting recovery scenarios pastures and calculating the error of the estimates; and 5 - Study the dynamics of soil organic matter in the priority areas. The parameters used to characterize these dynamics will be: stocks of carbon and nitrogen, natural abundance of 13C, physical fractionation of organic matter characterization of humic substances by fluorescence and optical emission spectroscopy with laser-induced plasma. Data analysis will consist of validation and calculation of uncertainty of modeled and simulated data. In characterizing of the change in carbon stocks in the soil will be used principal components analysis with the aid of the statistical package SAS. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

RITTL, TATIANA F.; OLIVEIRA, DANIELE; CERRI, CARLOS E. P.. Soil carbon stock changes under different land uses in the Amazon. GEODERMA REGIONAL, v. 10, p. 138-143, SEP 2017. (15/10108-9, 14/21273-8)

DE OLIVEIRA, DANIELE COSTA; FERREIRA MAIA, STOECIO MALTA; ALVES FREITAS, RITA DE CASSIA; PELLEGRINO CERRI, CARLOS EDUARDO. Changes in soil carbon and soil carbon sequestration potential under different types of pasture management in Brazil. Regional Environmental Change, v. 22, n. 3, p. 11-pg., 2022-09-01. (14/21273-8)

DE OLIVEIRA, DANIELE COSTA; DA SILVA OLIVEIRA, DENER MARCIO; ALVES DE FREITAS, RITA DE CASSIA; BARRETO, MATHEUS SAMPAIO; MUNHOZ DE ALMEIDA, RODRIGO ESTEVAM; BATISTA, RAFAEL BUTKE; PELLEGRINO CERRI, CARLOS EDUARDO. Depth assessed and up-scaling of single case studies might overestimate the role of C sequestration by pastures in the commitments of Brazil's low-carbon agriculture plan. CARBON MANAGEMENT, v. 12, n. 5, SEP 2021. (14/21273-8, 20/15230-5, 14/50279-4)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

OLIVEIRA, Daniele Costa de. Potential of soil carbon sequestration and organic matter dynamics in degraded pastures in Brazil. 2018. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.