Estimation of precompression stress in an Ultisol cultivated with sugarcane
ABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (...
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Universidade Federal de Campina Grande
2019-05-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| author | Pericles M. B. Mendes Mário M. Rolim Renato P. de Lima Elvira M. R. Pedrosa Uilka E. Tavares Djalma E. Simões Neto |
| author_facet | Pericles M. B. Mendes Mário M. Rolim Renato P. de Lima Elvira M. R. Pedrosa Uilka E. Tavares Djalma E. Simões Neto |
| author_sort | Pericles M. B. Mendes |
| collection | DOAJ |
| description | ABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (BD) and gravimetric water content (w) was examined on soil strength and pedo-transfer functions were proposed to predict the precompression stress (σp) in an Ultisol cultivated with sugarcane. Undisturbed soil cores were sampled at the depths of 0-0.20 and 0.20-0.40 m, subjected to different water contents, and subsequently, compression tests were performed to determine σp. The data were subjected to analysis of variance and regression analysis. Bulk density and w affected σp positively and negatively, respectively. Approximately 70% of the variation of the σp could be explained as a function of BD and w through an accessible multiple regression model. Comparisons with other pedo-transfer functions showed that estimates of σp may be rather sensitive to soil management and textural classes. Variations imposed by soil management and cohesive character into depth suggest that independent models should be considered to characterise compressive behaviour of soil by horizon or layer. |
| format | Article |
| id | doaj-art-8ad73c8face54f1ab6b10b3f49827195 |
| institution | DOAJ |
| issn | 1807-1929 |
| language | English |
| publishDate | 2019-05-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-8ad73c8face54f1ab6b10b3f498271952025-08-20T03:06:47ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292019-05-0123533634010.1590/1807-1929/agriambi.v23n5p336-340S1415-43662019000500336Estimation of precompression stress in an Ultisol cultivated with sugarcanePericles M. B. MendesMário M. RolimRenato P. de LimaElvira M. R. PedrosaUilka E. TavaresDjalma E. Simões NetoABSTRACT Compressive soil properties are typically used for the understanding of compaction process. As an alternative to laboratory tests, pedo-transfer functions have been used to estimate the mechanical behaviour of soil as a function of soil physical parameters. The impact of soil bulk density (BD) and gravimetric water content (w) was examined on soil strength and pedo-transfer functions were proposed to predict the precompression stress (σp) in an Ultisol cultivated with sugarcane. Undisturbed soil cores were sampled at the depths of 0-0.20 and 0.20-0.40 m, subjected to different water contents, and subsequently, compression tests were performed to determine σp. The data were subjected to analysis of variance and regression analysis. Bulk density and w affected σp positively and negatively, respectively. Approximately 70% of the variation of the σp could be explained as a function of BD and w through an accessible multiple regression model. Comparisons with other pedo-transfer functions showed that estimates of σp may be rather sensitive to soil management and textural classes. Variations imposed by soil management and cohesive character into depth suggest that independent models should be considered to characterise compressive behaviour of soil by horizon or layer.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336&lng=en&tlng=encompactionsoil compressibilitycoastal tablelands |
| spellingShingle | Pericles M. B. Mendes Mário M. Rolim Renato P. de Lima Elvira M. R. Pedrosa Uilka E. Tavares Djalma E. Simões Neto Estimation of precompression stress in an Ultisol cultivated with sugarcane Revista Brasileira de Engenharia Agrícola e Ambiental compaction soil compressibility coastal tablelands |
| title | Estimation of precompression stress in an Ultisol cultivated with sugarcane |
| title_full | Estimation of precompression stress in an Ultisol cultivated with sugarcane |
| title_fullStr | Estimation of precompression stress in an Ultisol cultivated with sugarcane |
| title_full_unstemmed | Estimation of precompression stress in an Ultisol cultivated with sugarcane |
| title_short | Estimation of precompression stress in an Ultisol cultivated with sugarcane |
| title_sort | estimation of precompression stress in an ultisol cultivated with sugarcane |
| topic | compaction soil compressibility coastal tablelands |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000500336&lng=en&tlng=en |
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