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SOIL CARBON AND NITROGEN STOCKS AND GREENHOUSE GAS FLUXES IN SOIL CULTIVATED WITH JATROPHA SSP UNDER DIFFERENT MANAGEMENT PRACTICES

Grant number: 12/02873-9
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): June 01, 2012
Effective date (End): January 31, 2015
Field of knowledge:Agronomical Sciences - Agronomy - Soil Science
Principal Investigator:Carlos Eduardo Pellegrino Cerri
Grantee:Rita de Cássia Alves de Freitas
Home Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil

Abstract

In order to achieve the goals of reducing greenhouse gas (GHG) emissions from industrialized countries included in the Kyoto Protocol, researches have been developed to find alternatives that make the soil less sources and more sinks of GHG. Among the possible alternatives, reforestation with native species and/or intercropped with crops of economic interest (e.g. Jatropha ssp) can contribute to carbon sequestration and GHG emission reduction. Thus, the overall objective of this project is to estimate soil carbon and nitrogen stocks and GHG fluxes in Jatropha ssp chronosequences with different management practices in soil from two different climatic regions potentially located in south-central and northeast regions of Brazil. Soil samples will be collected in the 0-5, 5-10, 10-20, 20-30, 30-40, 50-60, 70-80 and 90-100 cm layers to evaluate soil C e N stocks and soil microbial biomass C and N content. CO2, N2O and CH4 fluxes will be measured using static chambers in triplicate in each study area. Soil carbon sequestration will be calculated by the difference between the GHG emissions and the soil carbon accumulation, converted to carbon equivalent units. These results will be used to simulated changes on soil C and N stocks and GHG emission as a function of different management practices in the cultivation of Jatropha ssp through the use of mathematical modeling.

Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
FREITAS, Rita de Cássia Alves de. Carbon and nitrogen storage in soil and greenhouse gases emission in areas cultivated with Jatropha spp. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz Piracicaba.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.