Clipping of news on Brazilian Culture, Law and Citizenship
12/17/2014
This article was translated by an automatic translation system, and was therefore not reviewed by people.
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DANIELLE JORDAN / AmbienteBrasil
A study conducted in Escola Superior de Agricultura "Luiz de Queiroz", Esalq assessed the environmental impact from soil preparation for planting cane sugar.
The culture continues to grow in Brazil for the production of ethanol, and the country is the largest exporter.
According to agroecóloga formed by the University of the Amazon (Colombia), Adriana Silva-Olaya, today half the total area of sugarcane is harvested mechanically, avoiding emissions from the burning of biomass and favors the increase in the stock of soil carbon .
The information is part of the study "carbon dioxide emissions after different tillage systems in the culture of cane sugar", which was part of Adriana's dissertation, the graduate program in Soil Science and Nutrition plants and reveals that the soil with tillage technology and other procedures allows greater mineralization of soil organic carbon and increases CO2 emissions.
"Given this situation, this study aimed to quantify CO2 emissions derived from three tillage systems used during the reform of the sugar plantations in the state of São Paulo, and assess the influence of these straw emission processes," the researcher explained .
For monitoring of emissions was used a camera that collects and analyzes the CO2 stream, with analysis the day before soil preparation and after the passage of implements.
The findings showed that conventional tillage presented cumulative emissions between 34% and 39% higher than found in semireduzido preparation and minimum preparation.
"The selection of sustainable management practices that increase carbon sequestration, improve soil quality and help minimize CO2 emissions from agricultural soils, contributes to the reduction of the value of ethanol's carbon footprint (footprint), increasing consequently the environmental benefit of replacing fossil fuel with this biofuel, "concluded the researcher.
* With information from Esalq.
Source: Environment Brazil
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This article was translated by an automatic translation system, and was therefore not reviewed by people.