Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems
ABSTRACT Retaining sugarcane straw over the soil after harvesting can improve soil structure and increase soil carbon stabilization, mainly in macroaggregates. We evaluated the carbon content in the aggregate classes in areas under burn and no-burn (adopted for five years) sugarcane management syste...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2018-06-01
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| Series: | Anais da Academia Brasileira de Ciências |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502459&lng=en&tlng=en |
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| author | MARIA DE FÁTIMA GUIMARÃES JOSÉ F. DE OLIVEIRA TIAGO S. TELLES WALQUÍRIA MACHADO GRAZIELA M.C. BARBOSA JOÃO TAVARES FILHO |
| author_facet | MARIA DE FÁTIMA GUIMARÃES JOSÉ F. DE OLIVEIRA TIAGO S. TELLES WALQUÍRIA MACHADO GRAZIELA M.C. BARBOSA JOÃO TAVARES FILHO |
| author_sort | MARIA DE FÁTIMA GUIMARÃES |
| collection | DOAJ |
| description | ABSTRACT Retaining sugarcane straw over the soil after harvesting can improve soil structure and increase soil carbon stabilization, mainly in macroaggregates. We evaluated the carbon content in the aggregate classes in areas under burn and no-burn (adopted for five years) sugarcane management systems, focusing on the superficial layer (0.00-0.20 m). The experiment was carried in an Oxisol and the treatments consisted in burnt sugarcane, manual harvest; burnt sugarcane, mechanized harvest; and no-burn, mechanized harvest. The retention of sugarcane straw on the soil surface is justified by the increase in carbon content and carbon stock in the surface layer (0.00-0.20 m) by restructuring of the soil, even though it cannot match the structure of the soil under native forest. Our results suggest that in no-burn management the carbon not occluded inside aggregates was important to increase carbon stabilization in soil and that more attention should be given to macroaggregates 2.00-8.00 mm present in this management system, that showed higher carbon content and was responsible for increase of the geometric and weight diameter, increasing the erosion resistance in the long term in relation to burn systems. |
| first_indexed | 2024-12-20T20:47:17Z |
| format | Article |
| id | doaj.art-a4fe41a57d6b401c9c0a8f300d191a58 |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-12-20T20:47:17Z |
| publishDate | 2018-06-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-a4fe41a57d6b401c9c0a8f300d191a582022-12-21T19:27:01ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902018-06-01902 suppl 12459246710.1590/0001-3765201820170772S0001-37652018000502459Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systemsMARIA DE FÁTIMA GUIMARÃESJOSÉ F. DE OLIVEIRATIAGO S. TELLESWALQUÍRIA MACHADOGRAZIELA M.C. BARBOSAJOÃO TAVARES FILHOABSTRACT Retaining sugarcane straw over the soil after harvesting can improve soil structure and increase soil carbon stabilization, mainly in macroaggregates. We evaluated the carbon content in the aggregate classes in areas under burn and no-burn (adopted for five years) sugarcane management systems, focusing on the superficial layer (0.00-0.20 m). The experiment was carried in an Oxisol and the treatments consisted in burnt sugarcane, manual harvest; burnt sugarcane, mechanized harvest; and no-burn, mechanized harvest. The retention of sugarcane straw on the soil surface is justified by the increase in carbon content and carbon stock in the surface layer (0.00-0.20 m) by restructuring of the soil, even though it cannot match the structure of the soil under native forest. Our results suggest that in no-burn management the carbon not occluded inside aggregates was important to increase carbon stabilization in soil and that more attention should be given to macroaggregates 2.00-8.00 mm present in this management system, that showed higher carbon content and was responsible for increase of the geometric and weight diameter, increasing the erosion resistance in the long term in relation to burn systems.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502459&lng=en&tlng=ensugarcane strawsoil aggregatescarbon stocksand fractionsoil structure |
| spellingShingle | MARIA DE FÁTIMA GUIMARÃES JOSÉ F. DE OLIVEIRA TIAGO S. TELLES WALQUÍRIA MACHADO GRAZIELA M.C. BARBOSA JOÃO TAVARES FILHO Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems Anais da Academia Brasileira de Ciências sugarcane straw soil aggregates carbon stock sand fraction soil structure |
| title | Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems |
| title_full | Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems |
| title_fullStr | Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems |
| title_full_unstemmed | Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems |
| title_short | Soil aggregation and carbon stabilization in burn and no-burn sugarcane management systems |
| title_sort | soil aggregation and carbon stabilization in burn and no burn sugarcane management systems |
| topic | sugarcane straw soil aggregates carbon stock sand fraction soil structure |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000502459&lng=en&tlng=en |
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