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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
26/08/2024 |
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Data da última atualização: |
26/08/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LOPES, A. da S.; QUEIROZ, A. dos S.; NASCIMENTO, Í. V. do; OLIVEIRA, L. de S.; ALMEIDA, B. G. de; ARAUJO FILHO, J. C. de; SOUZA, L. da S.; SILVA, M. B. e; ROMERO, R. E.; SILVA, F. G. da; COSTA, M. C. G.; MOTA, J. C. A. |
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Afiliação: |
ANGÉLICA DA SILVA LOPES, UNIVERSIDADE FEDERAL DO CEARÁ; ALEXANDRE DOS SANTOS QUEIROZ, UNIVERSIDADE FEDERAL DO CEARÁ; ÍCARO VASCONCELOS DO NASCIMENTO, UNIVERSIDADE FEDERAL DO CEARÁ; LUCAS DE SOUSA OLIVEIRA, UNIVERSIDADE FEDERAL DO CEARÁ; BRIVALDO GOMES DE ALMEIDA, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; JOSE COELHO DE ARAUJO FILHO, CNPS; LUCIANO DA SILVA SOUZA, UNIVERSIDADE FEDERAL DO RECÔNCAVO DA BAHIA; MARLEN BARROS E SILVA, UNIVERSIDADE ESTADUAL DO MARANHÃO; RICARDO ESPÍNDOLA ROMERO, UNIVERSIDADE FEDERAL DO CEARÁ; FRANCISCA GLEICIANE DA SILVA, UNIVERSIDADE FEDERAL DO CEARÁ; MIRIAN CRISTINA GOMES COSTA, UNIVERSIDADE FEDERAL DO CEARÁ; JAEDSON CLÁUDIO ANUNCIATO MOTA, UNIVERSIDADE FEDERAL DO CEARÁ. |
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Título: |
Proposal of a revision scale of the degree of cohesion and tensile strength to aid in the diagnosis of the cohesive character in soils. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Catena, v. 245, 108284, Oct. 2024. |
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DOI: |
https://doi.org/10.1016/j.catena.2024.108284 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to establish reference values for tensile strength (TS) to aid the diagnosis of the cohesive character of soils. The hypotheses were: i) the subjectivity leads to variability in the human perception in the qualitative assessment of the cohesive character; ii) it is possible to develop a TS scale that aids in the quantification and diagnosis of the cohesive character. Three evaluators measured the aggregates/clods’ tensile strength using TS-Soil equipment. An electronic dynamometer was used as a control group, using a completely randomized design. The data were analyzed using statistical tests and regression analysis. Additionally, the values assigned in the qualitative evaluation of consistency by the evaluators were related to the tensile strength data. When comparing the means of the evaluators, who used the TS-Soil equipment to quantify the TS of aggregates/clods, with the electronic dynamometer (standard equipment) using the Dunnett test, no significant differences were found in 70 % of the comparisons for horizons with cohesive character and 57 % for horizons without cohesive character. The threshold for diagnosing the cohesive character was set at a TS value 66 kPa (very hard consistency). A significant number of scores were associated with hard consistency (40≤ TSkPa <66). The study concluded that there is variability in the qualitative assessment of cohesive character and that a TS scale can be useful in quantification and diagnosis. Furthermore, it highlighted the importance of considering a moderate degree of cohesion in taxonomic systems when diagnosing cohesive character. The academic contribution of this study materializes as soil taxonomic systems begin to incorporate quantitative criteria in the diagnosis of cohesive character in soils. As for practical applications, the use of the cohesion degree scale allows the pedologist to recognize the cohesive character in soils more assertively. MenosThis study aimed to establish reference values for tensile strength (TS) to aid the diagnosis of the cohesive character of soils. The hypotheses were: i) the subjectivity leads to variability in the human perception in the qualitative assessment of the cohesive character; ii) it is possible to develop a TS scale that aids in the quantification and diagnosis of the cohesive character. Three evaluators measured the aggregates/clods’ tensile strength using TS-Soil equipment. An electronic dynamometer was used as a control group, using a completely randomized design. The data were analyzed using statistical tests and regression analysis. Additionally, the values assigned in the qualitative evaluation of consistency by the evaluators were related to the tensile strength data. When comparing the means of the evaluators, who used the TS-Soil equipment to quantify the TS of aggregates/clods, with the electronic dynamometer (standard equipment) using the Dunnett test, no significant differences were found in 70 % of the comparisons for horizons with cohesive character and 57 % for horizons without cohesive character. The threshold for diagnosing the cohesive character was set at a TS value 66 kPa (very hard consistency). A significant number of scores were associated with hard consistency (40≤ TSkPa <66). The study concluded that there is variability in the qualitative assessment of cohesive character and that a TS scale can be useful in quantification and diagnosis. Furthermore, it ... Mostrar Tudo |
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Palavras-Chave: |
Densificação; Densification; Morfologia quantitativa; Pedometria; Pedometry; Quantitative morphology; Soil consistency. |
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Thesagro: |
Consistência; Pedologia; Solo. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 03114naa a2200385 a 4500
001 2166763
005 2024-08-26
008 2024 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.catena.2024.108284$2DOI
100 1 $aLOPES, A. da S.
245 $aProposal of a revision scale of the degree of cohesion and tensile strength to aid in the diagnosis of the cohesive character in soils.$h[electronic resource]
260 $c2024
520 $aThis study aimed to establish reference values for tensile strength (TS) to aid the diagnosis of the cohesive character of soils. The hypotheses were: i) the subjectivity leads to variability in the human perception in the qualitative assessment of the cohesive character; ii) it is possible to develop a TS scale that aids in the quantification and diagnosis of the cohesive character. Three evaluators measured the aggregates/clods’ tensile strength using TS-Soil equipment. An electronic dynamometer was used as a control group, using a completely randomized design. The data were analyzed using statistical tests and regression analysis. Additionally, the values assigned in the qualitative evaluation of consistency by the evaluators were related to the tensile strength data. When comparing the means of the evaluators, who used the TS-Soil equipment to quantify the TS of aggregates/clods, with the electronic dynamometer (standard equipment) using the Dunnett test, no significant differences were found in 70 % of the comparisons for horizons with cohesive character and 57 % for horizons without cohesive character. The threshold for diagnosing the cohesive character was set at a TS value 66 kPa (very hard consistency). A significant number of scores were associated with hard consistency (40≤ TSkPa <66). The study concluded that there is variability in the qualitative assessment of cohesive character and that a TS scale can be useful in quantification and diagnosis. Furthermore, it highlighted the importance of considering a moderate degree of cohesion in taxonomic systems when diagnosing cohesive character. The academic contribution of this study materializes as soil taxonomic systems begin to incorporate quantitative criteria in the diagnosis of cohesive character in soils. As for practical applications, the use of the cohesion degree scale allows the pedologist to recognize the cohesive character in soils more assertively.
650 $aConsistência
650 $aPedologia
650 $aSolo
653 $aDensificação
653 $aDensification
653 $aMorfologia quantitativa
653 $aPedometria
653 $aPedometry
653 $aQuantitative morphology
653 $aSoil consistency
700 1 $aQUEIROZ, A. dos S.
700 1 $aNASCIMENTO, Í. V. do
700 1 $aOLIVEIRA, L. de S.
700 1 $aALMEIDA, B. G. de
700 1 $aARAUJO FILHO, J. C. de
700 1 $aSOUZA, L. da S.
700 1 $aSILVA, M. B. e
700 1 $aROMERO, R. E.
700 1 $aSILVA, F. G. da
700 1 $aCOSTA, M. C. G.
700 1 $aMOTA, J. C. A.
773 $tCatena$gv. 245, 108284, Oct. 2024.
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Embrapa Solos (CNPS) |
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| 3. |  | RODAK, B. W.; PASCOALINO, J. A. L.; ALVES, S. J. F.; OLIVEIRA JUNIOR, A. de; CASTRO, C. de; MORAES, M. F. Disponibilidade de níquel associada a características químicas e texturais de solos destinados ao cultivo de soja. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 34., 2013, Florianópolis. Ciência do solo: para quê e para quem? Anais... Florianópolis: SBCS, 2013. 4 p.| Tipo: Artigo em Anais de Congresso |
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