Carbon stocks of an Oxisol after thirty-eight years under different tillage systems
ABSTRACT Soil carbon (C) stock determination can subsidize discussions on the continuity of an agricultural management. This study aimed to evaluate the stocks of total organic C (STOC) and labile C (SLC), and the indices of C lability (CLI), C compartment (CCI) and C management (CMI), and correlate...
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Universidade Federal de Campina Grande
2016-01-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | Sulamirtes S. de A. Magalhaes Fabricio T. Ramos Oscarlina L. dos S. Weber |
| author_facet | Sulamirtes S. de A. Magalhaes Fabricio T. Ramos Oscarlina L. dos S. Weber |
| author_sort | Sulamirtes S. de A. Magalhaes |
| collection | DOAJ |
| description | ABSTRACT Soil carbon (C) stock determination can subsidize discussions on the continuity of an agricultural management. This study aimed to evaluate the stocks of total organic C (STOC) and labile C (SLC), and the indices of C lability (CLI), C compartment (CCI) and C management (CMI), and correlate them with chemical and physical attributes of a Red Yellow Latosol (Oxisol) managed for 38 years with different tillage systems in a Cerrado region of Mato Grosso, Brazil. Disturbed and undisturbed soil samples were collected in three layers (0-0.05, 0.05-0.10 and 0.10-0.20 m). The CMI (CLI x CCI) showed higher STOC possibly as the tillage depth decreased, because none of the tillage systems conserved STOC and SLC in the layers of 0-0.05 and 0.05-0.10 m, compared with the Native Cerrado, i.e., soil C conservation only occurred in the layer of 0.10-0.20 m. Although the percentage of SLC in STOC was lower, only SLC was correlated with soil chemical and physical attributes and, based on the multiple linear regression analysis, SLC was explained in 54% (R2) by the cation exchange capacity and soil micropores. Therefore, for monitoring purposes, the SLCestimated can be useful to evaluate soil C storage. |
| format | Article |
| id | doaj-art-c1a67c3ea2c347ff8a84333331a0cffc |
| institution | DOAJ |
| issn | 1807-1929 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-c1a67c3ea2c347ff8a84333331a0cffc2025-08-20T03:04:06ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292016-01-01201859110.1590/1807-1929/agriambi.v20n1p85-91S1415-43662016000100085Carbon stocks of an Oxisol after thirty-eight years under different tillage systemsSulamirtes S. de A. MagalhaesFabricio T. RamosOscarlina L. dos S. WeberABSTRACT Soil carbon (C) stock determination can subsidize discussions on the continuity of an agricultural management. This study aimed to evaluate the stocks of total organic C (STOC) and labile C (SLC), and the indices of C lability (CLI), C compartment (CCI) and C management (CMI), and correlate them with chemical and physical attributes of a Red Yellow Latosol (Oxisol) managed for 38 years with different tillage systems in a Cerrado region of Mato Grosso, Brazil. Disturbed and undisturbed soil samples were collected in three layers (0-0.05, 0.05-0.10 and 0.10-0.20 m). The CMI (CLI x CCI) showed higher STOC possibly as the tillage depth decreased, because none of the tillage systems conserved STOC and SLC in the layers of 0-0.05 and 0.05-0.10 m, compared with the Native Cerrado, i.e., soil C conservation only occurred in the layer of 0.10-0.20 m. Although the percentage of SLC in STOC was lower, only SLC was correlated with soil chemical and physical attributes and, based on the multiple linear regression analysis, SLC was explained in 54% (R2) by the cation exchange capacity and soil micropores. Therefore, for monitoring purposes, the SLCestimated can be useful to evaluate soil C storage.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100085&lng=en&tlng=enconservação do solorotação de culturasmatéria orgânica do solo |
| spellingShingle | Sulamirtes S. de A. Magalhaes Fabricio T. Ramos Oscarlina L. dos S. Weber Carbon stocks of an Oxisol after thirty-eight years under different tillage systems Revista Brasileira de Engenharia Agrícola e Ambiental conservação do solo rotação de culturas matéria orgânica do solo |
| title | Carbon stocks of an Oxisol after thirty-eight years under different tillage systems |
| title_full | Carbon stocks of an Oxisol after thirty-eight years under different tillage systems |
| title_fullStr | Carbon stocks of an Oxisol after thirty-eight years under different tillage systems |
| title_full_unstemmed | Carbon stocks of an Oxisol after thirty-eight years under different tillage systems |
| title_short | Carbon stocks of an Oxisol after thirty-eight years under different tillage systems |
| title_sort | carbon stocks of an oxisol after thirty eight years under different tillage systems |
| topic | conservação do solo rotação de culturas matéria orgânica do solo |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000100085&lng=en&tlng=en |
| work_keys_str_mv | AT sulamirtessdeamagalhaes carbonstocksofanoxisolafterthirtyeightyearsunderdifferenttillagesystems AT fabriciotramos carbonstocksofanoxisolafterthirtyeightyearsunderdifferenttillagesystems AT oscarlinaldossweber carbonstocksofanoxisolafterthirtyeightyearsunderdifferenttillagesystems |