Prediction of the alterations in carbon cycling induced by the intensification and diversification of pasture management systems in Brazil

• Grant number: 18/21261-0
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: January 25, 2019
• End date: January 22, 2020
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: Carlos Eduardo Pellegrino Cerri
• Grantee: Júnior Melo Damian
• Supervisor: Keith Paustian
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Institution abroad: Colorado State University, United States
• Associated to the scholarship: 17/15331-3 - Changes in cycling and accumulation of C induced by intensification and diversification of the pasture management system, BP.DR

Abstract

The degradation of pasture areas in Brazil makes it difficult to provide ecosystem services, among which, is the mitigation of global climatic change through the accumulation of stable C in the form of soil organic matter (SOM). Therefore, monitoring tools that permit the spatial and temporal predictions about SOM in pasture areas could help in making decisions about sustainable pasture management. The present proposal for an internship abroad is part of a PhD project entitled "Alterations in the cycling and accumulation of carbon induced by the intensification and diversification of pasture management systems". The project has as its principal objectives: a) The quantification of the accumulation of C and N in the soil under different pasture management systems in Brazil (e.g., degraded pasture, rotational, crop-livestock integration and agroforestry systems) according to the original SOM levels; b) Compare the observed in situ results with the simulated results; c) Develop prospective scenarios for the different intensive and diversified pasture management systems, as well as associated changes in C and N soil stocks, in order to generate results to support/subsidize public policies (e.g. ABC Plan/Program). To do this, simulations with the DayCent model will be carried out during the internship period at the Department of Soil and Crop Sciences and the Natural Resource Ecology Laboratory (Colorado State University) in order to predict the effects on SOM due to the adoption of more intensive and diversified pasture management systems in Brazil. The results obtained should allow the improvement of prediction models for increasing soil C stocks in pasture areas and contribute to the implementation of public polices with the objective of recovering degraded areas and securing environmental sustainability of the Brazilian agricultural sector. (AU)

Scientific publications

(5)

(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. (17/15331-3, 18/21261-0)

DAMIAN, JUNIOR MELO; MATOS, EDUARDO DA SILVA; PEDREIRA, BRUNO CARNEIRO E; CARVALHO, PAULO CESAR DE FACCIO; PREMAZZI, LINDA MONICA; CERRI, CARLOS EDUARDO PELLEGRINO. Intensification and diversification of pasturelands in Brazil: Patterns and driving factors in the soil carbon stocks. CATENA, v. 220, p. 14-pg., 2023-01-01. (18/21261-0, 17/15331-3)

DAMIAN, JUNIOR MELO; MATOS, EDUARDO DA SILVA; PEDREIRA, BRUNO CARNEIRO E; CARVALHO, PAULO CESAR DE FACCIO; SOUZA, ADIJAILTON JOSE DE; ANDREOTE, FERNANDO DINI; PREMAZZI, LINDA MONICA; CERRI, CARLOS EDUARDO PELLEGRINO. Pastureland intensification and diversification in Brazil mediate soil bacterial community structure changes and soil C accumulation. APPLIED SOIL ECOLOGY, v. 160, APR 2021. (17/15331-3, 18/21261-0)

DAMIAN, JUNIOR MELO; MATOS, EDUARDO DA SILVA; CARNEIRO E PEDREIRA, BRUNO; DE FACCIO CARVALHO, PAULO CESAR; PREMAZZI, LINDA MONICA; WILLIAMS, STEPHEN; PAUSTIAN, KEITH; PELLEGRINO CERRI, CARLOS EDUARDO. Predicting soil C changes after pasture intensification and diversification in Brazil. CATENA, v. 202, JUL 2021. (18/21261-0, 17/15331-3)

DAMIAN, JUNIOR MELO; DURIGAN, MARIANA REGINA; CHERUBIN, MAURICIO ROBERTO; MAIA, STOECIO MALTA FERREIRA; OGLE, STEPHEN M.; DE CAMARGO, PLINIO BARBOSA; FERREIRA, JOICE NUNES; DE OLIVEIRA JUNIOR, RAIMUNDO COSME; CERRI, CARLOS EDUARDO PELLEGRINO. Deforestation and land use change mediate soil carbon changes in the eastern Brazilian Amazon. Regional Environmental Change, v. 21, n. 3, SEP 2021. (17/15331-3, 18/09845-7, 18/21261-0)