Índices de agregação de solos : influência da fração areia
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8649 |
Resumo: | Soil structuring refers to the arrangement of its mineral particles that form small structures (aggregates), generated from a complex interaction between physical, chemical and biological agents. The soil structural condition has been quantified through the size and state of the aggregates, through the aggregation indices; parameters calculated from data generated in tests that measure the aggregate ability to resist the applied rupture energy. In the calculations of these parameters, there is still no consensus on the contribution of the sand fraction to the aggregation indices, as well as whether it should be discounted in the calculations, depending on these particles’ participation in the soil aggregation process. Thus, the objective of this research was to evaluate the contribution of the coarse fraction (gravel + sand) in the soil aggregation indices. For this, an area cultivated with sugarcane was selected at the Carpina Sugarcane Experimental Station. Soil samples with preserved structure were collected for aggregate stability analysis; and part of these, converted to air-dried fine earth, were destined to the soil physical and chemical characterization. Aggregate stability analysis was carried out by the dry and wet methods, and, at the end of the process, the aggregates were dispersed to separate the sand and gravel fraction. The calculations of aggregation indices, weighted mean diameter (WMD), geometric mean diameter (GMD) and aggregate stability (AS%1 and AS%2), were performed with and without the coarse fraction mass of the aggregates to comparing each other. The evaluated soil, despite its sandy loam texture, showed good aggregation and stability, so that the removal of the sand fraction promoted small and non-significant changes in the WMD, GMD and AS%1 indices; however, in AS%2 there was significant difference. Thus, the coarse particle corrections did not promote coherent changes in the correlations between the aggregation indices and the soil characterization attributes, reinforcing that, under the conditions of this study, such corrections are not recommended. |
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ALMEIDA, Brivaldo Gomes deFERREIRA, Ademir de OliveiraMOTA, Jaedson Cláudio AnunciatoMANTOVANELLI, Bruno CamposSANTOS, Monaliza Alves doshttp://lattes.cnpq.br/3552965818430021SILVA, Alison José da2022-09-12T11:44:45Z2022-02-25SILVA, Alison José da. Índices de agregação de solos : influência da fração areia. 2022. 65 f. Dissertação (Programa de Pós-Graduação em Ciência do Solo) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8649Soil structuring refers to the arrangement of its mineral particles that form small structures (aggregates), generated from a complex interaction between physical, chemical and biological agents. The soil structural condition has been quantified through the size and state of the aggregates, through the aggregation indices; parameters calculated from data generated in tests that measure the aggregate ability to resist the applied rupture energy. In the calculations of these parameters, there is still no consensus on the contribution of the sand fraction to the aggregation indices, as well as whether it should be discounted in the calculations, depending on these particles’ participation in the soil aggregation process. Thus, the objective of this research was to evaluate the contribution of the coarse fraction (gravel + sand) in the soil aggregation indices. For this, an area cultivated with sugarcane was selected at the Carpina Sugarcane Experimental Station. Soil samples with preserved structure were collected for aggregate stability analysis; and part of these, converted to air-dried fine earth, were destined to the soil physical and chemical characterization. Aggregate stability analysis was carried out by the dry and wet methods, and, at the end of the process, the aggregates were dispersed to separate the sand and gravel fraction. The calculations of aggregation indices, weighted mean diameter (WMD), geometric mean diameter (GMD) and aggregate stability (AS%1 and AS%2), were performed with and without the coarse fraction mass of the aggregates to comparing each other. The evaluated soil, despite its sandy loam texture, showed good aggregation and stability, so that the removal of the sand fraction promoted small and non-significant changes in the WMD, GMD and AS%1 indices; however, in AS%2 there was significant difference. Thus, the coarse particle corrections did not promote coherent changes in the correlations between the aggregation indices and the soil characterization attributes, reinforcing that, under the conditions of this study, such corrections are not recommended.A estruturação do solo refere-se ao arranjo de suas partículas minerais que formam pequenas estruturas (agregados), geradas a partir de uma complexa interação entre os agentes físicos, químicos e biológicos. A condição estrutural do solo tem sido quantificada por meio do tamanho e estado dos agregados, por intermédio dos índices de agregação; parâmetros calculados a partir de dados gerados em ensaios que medem a capacidade do agregado em resistir à energia de ruptura aplicada. Nos cálculos desses parâmetros, ainda não há um consenso sobre a contribuição da fração areia nos índices de agregação, bem como se ela deve ser descontada nos cálculos, em função da participação dessas partículas no processo de agregação do solo. Desse modo, o objetivo desta pesquisa foi avaliar a contribuição da fração grosseira (cascalho + areia) nos índices de agregação do solo. Para isso foi selecionada uma área cultivada com cana-de-açúcar na Estação Experimental de Cana-de-Açúcar de Carpina. Amostras com estrutura preservada foram coletadas para os ensaios de estabilidade de agregados; e parte destas, convertida à terra fina seca ao ar, foi destinada aos ensaios físicos e químicos de caracterização do solo. Os ensaios de estabilidade de agregados foram executados pelas vias seca e úmida e, ao final do processo, realizou-se a dispersão dos agregados para separação da fração areia e cascalho. Os cálculos dos índices de agregação, diâmetro médio ponderado (DMP), diâmetro médio geométrico (DMG) e estabilidade de agregados (IEA1 e IEA2), foram realizados com e sem a massa da fração grosseira dos agregados para fins de comparação. O solo avaliado, apesar da textura franco arenosa, apresentou boa agregação e estabilidade, de forma que a remoção da fração areia promoveu pequenas alterações, e não significativas, nos índices DMP, DMG e IEA1; porém no IEA2 houve diferença significativa. Assim, as correções das partículas grosseiras não promoveram alterações coerentes nas correlações entre os índices de agregação e os atributos de caracterização do solo, reforçando que, nas condições desse estudo, não se recomenda tais correções.Submitted by Mario BC (mario@bc.ufrpe.br) on 2022-09-12T11:44:45Z No. of bitstreams: 1 Alison Jose da Silva.pdf: 1505602 bytes, checksum: e01976df4ae221cf675f7c7d74144515 (MD5)Made available in DSpace on 2022-09-12T11:44:45Z (GMT). No. of bitstreams: 1 Alison Jose da Silva.pdf: 1505602 bytes, checksum: e01976df4ae221cf675f7c7d74144515 (MD5) Previous issue date: 2022-02-25Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPqapplication/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Ciência do SoloUFRPEBrasilDepartamento de AgronomiaAgregação do soloFração grosseiraMatéria orgânicaSoloAGRONOMIA::CIENCIA DO SOLOÍndices de agregação de solos : influência da fração areiainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis8551734419043507650600600600600-6800553879972229205-5919840527232375671-2555911436985713659info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPEORIGINALAlison Jose da Silva.pdfAlison Jose da Silva.pdfapplication/pdf1505602http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8649/2/Alison+Jose+da+Silva.pdfe01976df4ae221cf675f7c7d74144515MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/8649/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51tede2/86492022-09-12 08:44:45.765oai:tede2:tede2/8649Tk9UQTogQ09MT1FVRSBBUVVJIEEgU1VBIFBSw5NQUklBIExJQ0VOw4dBCkVzdGEgbGljZW7Dp2EgZGUgZXhlbXBsbyDDqSBmb3JuZWNpZGEgYXBlbmFzIHBhcmEgZmlucyBpbmZvcm1hdGl2b3MuCgpMSUNFTsOHQSBERSBESVNUUklCVUnDh8ODTyBOw4NPLUVYQ0xVU0lWQQoKQ29tIGEgYXByZXNlbnRhw6fDo28gZGVzdGEgbGljZW7Dp2EsIHZvY8OqIChvIGF1dG9yIChlcykgb3UgbyB0aXR1bGFyIGRvcyBkaXJlaXRvcyBkZSBhdXRvcikgY29uY2VkZSDDoCBVbml2ZXJzaWRhZGUgClhYWCAoU2lnbGEgZGEgVW5pdmVyc2lkYWRlKSBvIGRpcmVpdG8gbsOjby1leGNsdXNpdm8gZGUgcmVwcm9kdXppciwgIHRyYWR1emlyIChjb25mb3JtZSBkZWZpbmlkbyBhYmFpeG8pLCBlL291IApkaXN0cmlidWlyIGEgc3VhIHRlc2Ugb3UgZGlzc2VydGHDp8OjbyAoaW5jbHVpbmRvIG8gcmVzdW1vKSBwb3IgdG9kbyBvIG11bmRvIG5vIGZvcm1hdG8gaW1wcmVzc28gZSBlbGV0csO0bmljbyBlIAplbSBxdWFscXVlciBtZWlvLCBpbmNsdWluZG8gb3MgZm9ybWF0b3Mgw6F1ZGlvIG91IHbDrWRlby4KClZvY8OqIGNvbmNvcmRhIHF1ZSBhIFNpZ2xhIGRlIFVuaXZlcnNpZGFkZSBwb2RlLCBzZW0gYWx0ZXJhciBvIGNvbnRlw7pkbywgdHJhbnNwb3IgYSBzdWEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvIApwYXJhIHF1YWxxdWVyIG1laW8gb3UgZm9ybWF0byBwYXJhIGZpbnMgZGUgcHJlc2VydmHDp8Ojby4KClZvY8OqIHRhbWLDqW0gY29uY29yZGEgcXVlIGEgU2lnbGEgZGUgVW5pdmVyc2lkYWRlIHBvZGUgbWFudGVyIG1haXMgZGUgdW1hIGPDs3BpYSBhIHN1YSB0ZXNlIG91IApkaXNzZXJ0YcOnw6NvIHBhcmEgZmlucyBkZSBzZWd1cmFuw6dhLCBiYWNrLXVwIGUgcHJlc2VydmHDp8Ojby4KClZvY8OqIGRlY2xhcmEgcXVlIGEgc3VhIHRlc2Ugb3UgZGlzc2VydGHDp8OjbyDDqSBvcmlnaW5hbCBlIHF1ZSB2b2PDqiB0ZW0gbyBwb2RlciBkZSBjb25jZWRlciBvcyBkaXJlaXRvcyBjb250aWRvcyAKbmVzdGEgbGljZW7Dp2EuIFZvY8OqIHRhbWLDqW0gZGVjbGFyYSBxdWUgbyBkZXDDs3NpdG8gZGEgc3VhIHRlc2Ugb3UgZGlzc2VydGHDp8OjbyBuw6NvLCBxdWUgc2VqYSBkZSBzZXUgCmNvbmhlY2ltZW50bywgaW5mcmluZ2UgZGlyZWl0b3MgYXV0b3JhaXMgZGUgbmluZ3XDqW0uCgpDYXNvIGEgc3VhIHRlc2Ugb3UgZGlzc2VydGHDp8OjbyBjb250ZW5oYSBtYXRlcmlhbCBxdWUgdm9jw6ogbsOjbyBwb3NzdWkgYSB0aXR1bGFyaWRhZGUgZG9zIGRpcmVpdG9zIGF1dG9yYWlzLCB2b2PDqiAKZGVjbGFyYSBxdWUgb2J0ZXZlIGEgcGVybWlzc8OjbyBpcnJlc3RyaXRhIGRvIGRldGVudG9yIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBwYXJhIGNvbmNlZGVyIMOgIFNpZ2xhIGRlIFVuaXZlcnNpZGFkZSAKb3MgZGlyZWl0b3MgYXByZXNlbnRhZG9zIG5lc3RhIGxpY2Vuw6dhLCBlIHF1ZSBlc3NlIG1hdGVyaWFsIGRlIHByb3ByaWVkYWRlIGRlIHRlcmNlaXJvcyBlc3TDoSBjbGFyYW1lbnRlIAppZGVudGlmaWNhZG8gZSByZWNvbmhlY2lkbyBubyB0ZXh0byBvdSBubyBjb250ZcO6ZG8gZGEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvIG9yYSBkZXBvc2l0YWRhLgoKQ0FTTyBBIFRFU0UgT1UgRElTU0VSVEHDh8ODTyBPUkEgREVQT1NJVEFEQSBURU5IQSBTSURPIFJFU1VMVEFETyBERSBVTSBQQVRST0PDjU5JTyBPVSAKQVBPSU8gREUgVU1BIEFHw4pOQ0lBIERFIEZPTUVOVE8gT1UgT1VUUk8gT1JHQU5JU01PIFFVRSBOw4NPIFNFSkEgQSBTSUdMQSBERSAKVU5JVkVSU0lEQURFLCBWT0PDiiBERUNMQVJBIFFVRSBSRVNQRUlUT1UgVE9ET1MgRSBRVUFJU1FVRVIgRElSRUlUT1MgREUgUkVWSVPDg08gQ09NTyAKVEFNQsOJTSBBUyBERU1BSVMgT0JSSUdBw4fDlUVTIEVYSUdJREFTIFBPUiBDT05UUkFUTyBPVSBBQ09SRE8uCgpBIFNpZ2xhIGRlIFVuaXZlcnNpZGFkZSBzZSBjb21wcm9tZXRlIGEgaWRlbnRpZmljYXIgY2xhcmFtZW50ZSBvIHNldSBub21lIChzKSBvdSBvKHMpIG5vbWUocykgZG8ocykgCmRldGVudG9yKGVzKSBkb3MgZGlyZWl0b3MgYXV0b3JhaXMgZGEgdGVzZSBvdSBkaXNzZXJ0YcOnw6NvLCBlIG7Do28gZmFyw6EgcXVhbHF1ZXIgYWx0ZXJhw6fDo28sIGFsw6ltIGRhcXVlbGFzIApjb25jZWRpZGFzIHBvciBlc3RhIGxpY2Vuw6dhLgo=Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-05-28T12:37:15.378888Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Índices de agregação de solos : influência da fração areia |
title |
Índices de agregação de solos : influência da fração areia |
spellingShingle |
Índices de agregação de solos : influência da fração areia SILVA, Alison José da Agregação do solo Fração grosseira Matéria orgânica Solo AGRONOMIA::CIENCIA DO SOLO |
title_short |
Índices de agregação de solos : influência da fração areia |
title_full |
Índices de agregação de solos : influência da fração areia |
title_fullStr |
Índices de agregação de solos : influência da fração areia |
title_full_unstemmed |
Índices de agregação de solos : influência da fração areia |
title_sort |
Índices de agregação de solos : influência da fração areia |
author |
SILVA, Alison José da |
author_facet |
SILVA, Alison José da |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
ALMEIDA, Brivaldo Gomes de |
dc.contributor.advisor-co1.fl_str_mv |
FERREIRA, Ademir de Oliveira |
dc.contributor.advisor-co2.fl_str_mv |
MOTA, Jaedson Cláudio Anunciato |
dc.contributor.referee1.fl_str_mv |
MANTOVANELLI, Bruno Campos |
dc.contributor.referee2.fl_str_mv |
SANTOS, Monaliza Alves dos |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/3552965818430021 |
dc.contributor.author.fl_str_mv |
SILVA, Alison José da |
contributor_str_mv |
ALMEIDA, Brivaldo Gomes de FERREIRA, Ademir de Oliveira MOTA, Jaedson Cláudio Anunciato MANTOVANELLI, Bruno Campos SANTOS, Monaliza Alves dos |
dc.subject.por.fl_str_mv |
Agregação do solo Fração grosseira Matéria orgânica Solo |
topic |
Agregação do solo Fração grosseira Matéria orgânica Solo AGRONOMIA::CIENCIA DO SOLO |
dc.subject.cnpq.fl_str_mv |
AGRONOMIA::CIENCIA DO SOLO |
description |
Soil structuring refers to the arrangement of its mineral particles that form small structures (aggregates), generated from a complex interaction between physical, chemical and biological agents. The soil structural condition has been quantified through the size and state of the aggregates, through the aggregation indices; parameters calculated from data generated in tests that measure the aggregate ability to resist the applied rupture energy. In the calculations of these parameters, there is still no consensus on the contribution of the sand fraction to the aggregation indices, as well as whether it should be discounted in the calculations, depending on these particles’ participation in the soil aggregation process. Thus, the objective of this research was to evaluate the contribution of the coarse fraction (gravel + sand) in the soil aggregation indices. For this, an area cultivated with sugarcane was selected at the Carpina Sugarcane Experimental Station. Soil samples with preserved structure were collected for aggregate stability analysis; and part of these, converted to air-dried fine earth, were destined to the soil physical and chemical characterization. Aggregate stability analysis was carried out by the dry and wet methods, and, at the end of the process, the aggregates were dispersed to separate the sand and gravel fraction. The calculations of aggregation indices, weighted mean diameter (WMD), geometric mean diameter (GMD) and aggregate stability (AS%1 and AS%2), were performed with and without the coarse fraction mass of the aggregates to comparing each other. The evaluated soil, despite its sandy loam texture, showed good aggregation and stability, so that the removal of the sand fraction promoted small and non-significant changes in the WMD, GMD and AS%1 indices; however, in AS%2 there was significant difference. Thus, the coarse particle corrections did not promote coherent changes in the correlations between the aggregation indices and the soil characterization attributes, reinforcing that, under the conditions of this study, such corrections are not recommended. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-09-12T11:44:45Z |
dc.date.issued.fl_str_mv |
2022-02-25 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVA, Alison José da. Índices de agregação de solos : influência da fração areia. 2022. 65 f. Dissertação (Programa de Pós-Graduação em Ciência do Solo) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8649 |
identifier_str_mv |
SILVA, Alison José da. Índices de agregação de solos : influência da fração areia. 2022. 65 f. Dissertação (Programa de Pós-Graduação em Ciência do Solo) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/8649 |
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por |
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por |
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8551734419043507650 |
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600 600 600 600 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal Rural de Pernambuco |
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Programa de Pós-Graduação em Ciência do Solo |
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UFRPE |
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Brasil |
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Departamento de Agronomia |
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Universidade Federal Rural de Pernambuco |
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