Changes in cycling and accumulation of C induced by intensification and diversification of the pasture management system

• Grant number: 17/15331-3
• Support type: Scholarships in Brazil - Doctorate
• Effective date (Start): June 01, 2018
• Effective date (End): February 28, 2021
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal researcher: Carlos Eduardo Pellegrino Cerri
• Grantee: Júnior Melo Damian
• Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 18/21261-0 - Prediction of the alterations in carbon cycling induced by the intensification and diversification of pasture management systems in Brazil, BE.EP.DR

Abstract

Pasture areas in Brazil have great potential for soil carbon accumulation, contributing to the mitigation of global climate change. However, extensive management traditionally adopted in these areas has resulted in the degradation of pasture and soil, limiting the potential environmental benefits provided by this land use. Thus, the present project has the objective of evaluating the evaluate the potential of C accumulation in pasture areas related to the transition from degraded pasture to rotational system, crop-livestock integration and agroforestry systems. The study will be conducted in the states of São Paulo, Mato Grosso and Rio Grande do Sul. For the calculation of the Carbon (C) and Nitrogen (N) accumulation, physical fractionation of Soil Organic Matter (SOM), characterization of the quality of the MOS fractions and microbial characterization, the soil will be sampled at 1 m depth. In addition, simulations will be made on the dynamics of C and N stocks in pasture management systems through mathematical modeling. The obtained final data will be integrated by means of multivariate statistics (principal component analysis). With the results generated in this project, we intend to improve the predictions of models to increase C in pasture areas and contribute to environmental sustainability. (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)

DAMIAN, JUNIOR MELO; FIRMANO, RUAN FRANCISCO; CHERUBIN, MAURICIO ROBERTO; PAVINATO, PAULO SERGIO; SOARES, THAIS DE MARCHI; PAUSTIAN, KEITH; PELLEGRINO CERRI, CARLOS EDUARDO. Changes in soil phosphorus pool induced by pastureland intensification and diversification in Brazil. Science of The Total Environment, v. 703, FEB 10 2020. Web of Science Citations: 0.