Soil structure changes induced by tillage systems
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.still.2016.07.010 http://hdl.handle.net/11449/159145 |
Resumo: | Structure represents one of the main soil physical attributes indicators. The soil porous system (SPS) is directly linked to the soil structure. Water retention, movement, root development, gas diffusion and the conditions for all soil biota are related to the SPS. Studies, about the influence of tillage systems in the soil structure are important to evaluate their impact in the soil quality. This paper deals with a detailed analysis of changes in the soil structure induced by conventional (CT) and no-tillage (NT) systems. Three different soil depths were studied (0-10, 10-20 and 20-30 cm). Data of the soil water retention curve (SWRC), micromorphologic (impregnated blocks) (2D) and microtomographic (mu CT) (3D) analyses were utilized to characterize the SPS. Such analyses enabled the investigation of porous system attributes such as: porosity, pore number and shape, pore size distribution, tortuosity and connectivity: Results from this study show a tri-modal pore size distribution (PSD) at depths 0-10 and 10-20 cm for the soil under CT and a bi-modal PSD for the lower layer (20-30 cm). Regarding the soil under NT, tri-modal PSD5 were found at the three depths analyzed. Results based on the micromorphologic analysis (2D) showed that the greatest contribution to areal porosity (AP) is given by pores of round (R) shape for CT (52%: 0-10 cm; 50%: 10-20 cm; 67%: 20-30 cm). Contrary to the results observed for CT, the soil under NT system gave the greatest contribution to AP, for the upper (0-10 cm) and intermediate (10-20 cm) layers, due to the large complex (C) pore types. For the mu CT analysis, several types of pores were identified for each soil tillage system. Small-differences in the macroporosity (MAP) were observed for the 0-10 and 20-30 cm between Cl' and NT. A better pore connectivity was found for the 0-10 cm layer under NT. (C) 2016 Elsevier B.V. All rights reserved. |
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Soil structure changes induced by tillage systemsSoil porous systemMicrotomographySoil water retention curveStructure represents one of the main soil physical attributes indicators. The soil porous system (SPS) is directly linked to the soil structure. Water retention, movement, root development, gas diffusion and the conditions for all soil biota are related to the SPS. Studies, about the influence of tillage systems in the soil structure are important to evaluate their impact in the soil quality. This paper deals with a detailed analysis of changes in the soil structure induced by conventional (CT) and no-tillage (NT) systems. Three different soil depths were studied (0-10, 10-20 and 20-30 cm). Data of the soil water retention curve (SWRC), micromorphologic (impregnated blocks) (2D) and microtomographic (mu CT) (3D) analyses were utilized to characterize the SPS. Such analyses enabled the investigation of porous system attributes such as: porosity, pore number and shape, pore size distribution, tortuosity and connectivity: Results from this study show a tri-modal pore size distribution (PSD) at depths 0-10 and 10-20 cm for the soil under CT and a bi-modal PSD for the lower layer (20-30 cm). Regarding the soil under NT, tri-modal PSD5 were found at the three depths analyzed. Results based on the micromorphologic analysis (2D) showed that the greatest contribution to areal porosity (AP) is given by pores of round (R) shape for CT (52%: 0-10 cm; 50%: 10-20 cm; 67%: 20-30 cm). Contrary to the results observed for CT, the soil under NT system gave the greatest contribution to AP, for the upper (0-10 cm) and intermediate (10-20 cm) layers, due to the large complex (C) pore types. For the mu CT analysis, several types of pores were identified for each soil tillage system. Small-differences in the macroporosity (MAP) were observed for the 0-10 and 20-30 cm between Cl' and NT. A better pore connectivity was found for the 0-10 cm layer under NT. (C) 2016 Elsevier B.V. All rights reserved.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)CNEN (Comissao Nacional de Energia Nuclear)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)CNEN for the Master scholarshipUniv Estadual Ponta Grossa, Dept Phys, Campus Uvaranas,Bloco L,Sala 15B, BR-84030900 Ponta Grossa, PR, BrazilAgr Res Inst Parana, Lab Soil Phys, BR-84001970 Ponta Grossa, PR, BrazilState Univ Sao Paulo, Dept Soil Sci, Luiz de Queiroz Coll Agr, BR-13418900 Sao Paulo, SP, BrazilUniv Guelph, Dept Land Resource Sci, Guelph, ON N1G 2W1, CanadaUniv Fed Paraiba, Dept Computat Sci, Informat Ctr, BR-58051900 Joao Pessoa, Paraiba, BrazilState Univ Sao Paulo, Dept Soil Sci, Luiz de Queiroz Coll Agr, BR-13418900 Sao Paulo, SP, BrazilCNPq: 303726/2015-6CAPES: BEX 1771/14-0Elsevier B.V.Universidade Estadual de Ponta Grossa (UEPG)Agr Res Inst ParanaUniversidade Estadual Paulista (Unesp)Univ GuelphUniv Fed ParaibaPires, Luiz F.Borges, Jaqueline A. R.Rosa, Jadir A.Cooper, Miguel [UNESP]Heck, Richard J.Passoni, SabrinaRoque, Waldir L.2018-11-26T15:31:35Z2018-11-26T15:31:35Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article66-79application/pdfhttp://dx.doi.org/10.1016/j.still.2016.07.010Soil & Tillage Research. Amsterdam: Elsevier Science Bv, v. 165, p. 66-79, 2017.0167-1987http://hdl.handle.net/11449/15914510.1016/j.still.2016.07.010WOS:000385901200009WOS000385901200009.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSoil & Tillage Research1,703info:eu-repo/semantics/openAccess2024-01-21T06:22:49Zoai:repositorio.unesp.br:11449/159145Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:35:22.745829Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Soil structure changes induced by tillage systems |
title |
Soil structure changes induced by tillage systems |
spellingShingle |
Soil structure changes induced by tillage systems Pires, Luiz F. Soil porous system Microtomography Soil water retention curve |
title_short |
Soil structure changes induced by tillage systems |
title_full |
Soil structure changes induced by tillage systems |
title_fullStr |
Soil structure changes induced by tillage systems |
title_full_unstemmed |
Soil structure changes induced by tillage systems |
title_sort |
Soil structure changes induced by tillage systems |
author |
Pires, Luiz F. |
author_facet |
Pires, Luiz F. Borges, Jaqueline A. R. Rosa, Jadir A. Cooper, Miguel [UNESP] Heck, Richard J. Passoni, Sabrina Roque, Waldir L. |
author_role |
author |
author2 |
Borges, Jaqueline A. R. Rosa, Jadir A. Cooper, Miguel [UNESP] Heck, Richard J. Passoni, Sabrina Roque, Waldir L. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Ponta Grossa (UEPG) Agr Res Inst Parana Universidade Estadual Paulista (Unesp) Univ Guelph Univ Fed Paraiba |
dc.contributor.author.fl_str_mv |
Pires, Luiz F. Borges, Jaqueline A. R. Rosa, Jadir A. Cooper, Miguel [UNESP] Heck, Richard J. Passoni, Sabrina Roque, Waldir L. |
dc.subject.por.fl_str_mv |
Soil porous system Microtomography Soil water retention curve |
topic |
Soil porous system Microtomography Soil water retention curve |
description |
Structure represents one of the main soil physical attributes indicators. The soil porous system (SPS) is directly linked to the soil structure. Water retention, movement, root development, gas diffusion and the conditions for all soil biota are related to the SPS. Studies, about the influence of tillage systems in the soil structure are important to evaluate their impact in the soil quality. This paper deals with a detailed analysis of changes in the soil structure induced by conventional (CT) and no-tillage (NT) systems. Three different soil depths were studied (0-10, 10-20 and 20-30 cm). Data of the soil water retention curve (SWRC), micromorphologic (impregnated blocks) (2D) and microtomographic (mu CT) (3D) analyses were utilized to characterize the SPS. Such analyses enabled the investigation of porous system attributes such as: porosity, pore number and shape, pore size distribution, tortuosity and connectivity: Results from this study show a tri-modal pore size distribution (PSD) at depths 0-10 and 10-20 cm for the soil under CT and a bi-modal PSD for the lower layer (20-30 cm). Regarding the soil under NT, tri-modal PSD5 were found at the three depths analyzed. Results based on the micromorphologic analysis (2D) showed that the greatest contribution to areal porosity (AP) is given by pores of round (R) shape for CT (52%: 0-10 cm; 50%: 10-20 cm; 67%: 20-30 cm). Contrary to the results observed for CT, the soil under NT system gave the greatest contribution to AP, for the upper (0-10 cm) and intermediate (10-20 cm) layers, due to the large complex (C) pore types. For the mu CT analysis, several types of pores were identified for each soil tillage system. Small-differences in the macroporosity (MAP) were observed for the 0-10 and 20-30 cm between Cl' and NT. A better pore connectivity was found for the 0-10 cm layer under NT. (C) 2016 Elsevier B.V. All rights reserved. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-11-26T15:31:35Z 2018-11-26T15:31:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.still.2016.07.010 Soil & Tillage Research. Amsterdam: Elsevier Science Bv, v. 165, p. 66-79, 2017. 0167-1987 http://hdl.handle.net/11449/159145 10.1016/j.still.2016.07.010 WOS:000385901200009 WOS000385901200009.pdf |
url |
http://dx.doi.org/10.1016/j.still.2016.07.010 http://hdl.handle.net/11449/159145 |
identifier_str_mv |
Soil & Tillage Research. Amsterdam: Elsevier Science Bv, v. 165, p. 66-79, 2017. 0167-1987 10.1016/j.still.2016.07.010 WOS:000385901200009 WOS000385901200009.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Soil & Tillage Research 1,703 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
66-79 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129533513039872 |