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Fluxus Project - Greenhouse gas dynamics and
carbon balance in grain production systems in Brazil

WORKSHOP 5 e 6/08/2013

It is known that climate change, caused by human activities that negatively impact the environment, is a reality that can affect agriculture and the economy of regions where production is strongly linked to the countryside.

In this context this project studies the ecosystem exchange of carbon dioxide (CO2), nitrous oxide (N2O) and methane (CH4), the three most important greenhouse gases related to agriculture.

In the case of agriculture, CO2, emitted by the soils, represents loss of carbon (C) of the organic matter of the soil (MOS) and plant residues, this phenomenon being conditioned by the climate and soil management. Nitrous oxide is also produced by the activity of soil microorganisms and its emission is strongly influenced by nitrogen and organic matter management. Finally, CH4 is emitted to the atmosphere by entheric fermentation of ruminants and from inundated soils, situation that occurs in irrigated rice cultivation by inundation.

In order to evaluate the emission of greenhouse gases (GHG), rural properties which work with grain production systems were selected in the Cerrado, Atlantic Forest, Pampa and Amazon biomes. This project focuses on the production systems of soybeans, corn, rice, beans, cowpea and wheat as well as associated secondary crops, cover crops and green manure.

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Strategic Importance

It is hoped to increase the knowledge of the capacity of the current productive systems and of alternative technologies, for the accumulation and sequestration of C in the soil, avoiding the emission of GEE. In this sense, it is considered that conservationist production systems have great potential to combine food production with the provision of environmental services, including mitigation of climate change and preservation of biodiversity.

In addition, the project structure comprises a series of studies about the social and economic dynamics of the relevant production and management systems in the processes of accumulation or sequestration of C and the emission of GHG. This knowledge is essential for the investigation and prediction of future scenarios and for the planning of public policies to encourage the adoption of mitigating practices of global warming.

This project also has a strategic character, as it will allow the collection of more precise information on the emission of GHG in Brazil and will provide subsidies for the debate in forums held inside the country and at international forums, based on a database recognized by the International Panel of Climate Change (IPCC).

Selected publications

Articles

Project Structure

The project is structured in eight component projects, in addition to management activities.

There are four diagnostic component projects that quantify C balance and GHG emissions in the four main biomes of grain production: Cerrado, Atlantic Forest, Pampa and Amazon.

Component projects by ecosystem
Dynamics of GHG emission and C balance in grain production systems in the savannah (Cerrado) ecosystem Dynamics of GHG emission and C balance in grain production systems in the Atlantic Forest ecosystem Dynamics of GHG emission and C balance in grain production systems in the southern grassland (Pampa) ecosystem Dynamics of GHG emission and C balance in grain production systems in the Amazon ecosystem
There are four cross-sectional component projects aimed at the modeling and simulation of carbon balance and GHG emission; Classification and spatialization of grain production systems; Organization and availability of the information generated by the research network; and Economic evaluation of technologies and policies for mitigation of GHG emissions.

 

Cross-sectional component projects
Modeling and simulation of the carbon balance and the emission of greenhouse gases Classification and spatialization of grain production systems in Brazil with the use of remote sensing Information management systems and integration of databases of greenhouse gas dynamics in grain production systems in Brazil Economic evaluation of technologies and policies for mitigation of greenhouse gas emissions in grain production systems

 

 Infoteca-e

Embrapa Arroz e Feijão
Rodovia GO-462, km 12 Zona Rural C.P. 179
75375-000 Santo Antônio de Goiás, GO
Fone: (62) 3533-2110/2103 - Fax: (62) 3533-2100
Responsável pelo Acesso às Informações: Rodrigo Peixoto Barros
rodrigo.barros@embrapa.br / (62) 3533.2108