Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane
Soil tillage and other methods of soil management may influence CO2 emissions because they accelerate the mineralization of organic carbon in the soil. This study aimed to quantify the CO2 emissions under conventional tillage (CT), minimum tillage (MT) and reduced tillage (RT) during the renovation...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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IOP Publishing
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/52131 |
| _version_ | 1855543678448173056 |
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| author | Silva Olaya, A.M. Cerri, Carlos Eduardo La Scala, Newton Dias, C.T.S. Cerri, C.C. |
| author_browse | Cerri, C.C. Cerri, Carlos Eduardo Dias, C.T.S. La Scala, Newton Silva Olaya, A.M. |
| author_facet | Silva Olaya, A.M. Cerri, Carlos Eduardo La Scala, Newton Dias, C.T.S. Cerri, C.C. |
| author_sort | Silva Olaya, A.M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Soil tillage and other methods of soil management may influence CO2 emissions because they accelerate the mineralization of organic carbon in the soil. This study aimed to quantify the CO2 emissions under conventional tillage (CT), minimum tillage (MT) and reduced tillage (RT) during the renovation of sugarcane fields in southern Brazil. The experiment was performed on an Oxisol in the sugarcane-planting area with mechanical harvesting. An undisturbed or no-till (NT) plot was left as a control treatment. The CO2 emissions results indicated a significant interaction (p < 0.001) between tillage method and time after tillage. By quantifying the accumulated emissions over the 44 days after soil tillage, we observed that tillage-induced emissions were higher after the CT system than the RT and MT systems, reaching 350.09 g m−2 of CO2 in CT, and 51.7 and 5.5 g m−2 of CO2 in RT and MT respectively. The amount of C lost in the form of CO2 due to soil tillage practices was significant and comparable to the estimated value of potential annual C accumulation resulting from changes in the harvesting system in Brazil from burning of plant residues to the adoption of green cane harvesting. The CO2 emissions in the CT system could respond to a loss of 80% of the potential soil C accumulated over one year as result of the adoption of mechanized sugarcane harvesting. Meanwhile, soil tillage during the renewal of the sugar plantation using RT and MT methods would result in low impact, with losses of 12% and 2% of the C that could potentially be accumulated during a one year period. |
| format | Journal Article |
| id | CGSpace52131 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | IOP Publishing |
| publisherStr | IOP Publishing |
| record_format | dspace |
| spelling | CGSpace521312024-05-01T08:20:11Z Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane Silva Olaya, A.M. Cerri, Carlos Eduardo La Scala, Newton Dias, C.T.S. Cerri, C.C. climate agriculture tillage soil management carbon mineralization Soil tillage and other methods of soil management may influence CO2 emissions because they accelerate the mineralization of organic carbon in the soil. This study aimed to quantify the CO2 emissions under conventional tillage (CT), minimum tillage (MT) and reduced tillage (RT) during the renovation of sugarcane fields in southern Brazil. The experiment was performed on an Oxisol in the sugarcane-planting area with mechanical harvesting. An undisturbed or no-till (NT) plot was left as a control treatment. The CO2 emissions results indicated a significant interaction (p < 0.001) between tillage method and time after tillage. By quantifying the accumulated emissions over the 44 days after soil tillage, we observed that tillage-induced emissions were higher after the CT system than the RT and MT systems, reaching 350.09 g m−2 of CO2 in CT, and 51.7 and 5.5 g m−2 of CO2 in RT and MT respectively. The amount of C lost in the form of CO2 due to soil tillage practices was significant and comparable to the estimated value of potential annual C accumulation resulting from changes in the harvesting system in Brazil from burning of plant residues to the adoption of green cane harvesting. The CO2 emissions in the CT system could respond to a loss of 80% of the potential soil C accumulated over one year as result of the adoption of mechanized sugarcane harvesting. Meanwhile, soil tillage during the renewal of the sugar plantation using RT and MT methods would result in low impact, with losses of 12% and 2% of the C that could potentially be accumulated during a one year period. 2013-03-01 2014-12-16T06:37:34Z 2014-12-16T06:37:34Z Journal Article https://hdl.handle.net/10568/52131 en Open Access IOP Publishing Silva-Olaya AM, Cerri CEP, La Scala Jr N, Dias CTS, Cerri CC. 2013. Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane. Environmental Research Letters 8: 015014. |
| spellingShingle | climate agriculture tillage soil management carbon mineralization Silva Olaya, A.M. Cerri, Carlos Eduardo La Scala, Newton Dias, C.T.S. Cerri, C.C. Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| title | Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| title_full | Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| title_fullStr | Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| title_full_unstemmed | Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| title_short | Carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| title_sort | carbon dioxide emissions under different soil tillage systems in mechanically harvested sugarcane |
| topic | climate agriculture tillage soil management carbon mineralization |
| url | https://hdl.handle.net/10568/52131 |
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