X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.

Detalhes bibliográficos
Autor(a) principal: PESSOA, T. N.
Data de Publicação: 2023
Outros Autores: FERREIRA, T. R., PIRES, L. F., COOPER, M., UTEAU, D., PETH, S., VAZ, C. M. P., LIBARDI, P. L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1155317
https://doi.org/10.3390/agriculture13010028
Resumo: Abstract: Soil structure controls soil hydraulic properties and is linked to soil aggregation processes. The aggregation processes of Oxisols are controlled mainly by clay mineralogy and biological activity. Computed microtomography (µCT) may be a tool for improving the knowledge of the hydraulic properties of these soils. Thus, this study brings an advance in the use of 3D image analysis to better comprehend the water behavior in tropical soils. In this work, three Oxisols were studied with the objective to (i) characterize the soil water retention curve (SWRC), the corresponding pore size frequency, and the saturated hydraulic conductivity (Ksat); (ii) use µCT to obtain, based on 3D images of soil structure and pore size distribution; and (iii) correlating parameters from SWRCs, Ksat, and µCT with other physical-hydric, chemical, and mineralogical attributes. Rhodic Haplustox—P1, Anionic Acrustox—P2, and Typic Hapludox—P3 were the three studied Oxisols. The differences among the SWRCs were related to the microgranular and block type’s structure morphology, which modified the soil pore space. The pore size frequency was calculated from SWRCs for pores with diameters of 87 ± 2 µm in P1, 134 ± 11µm in P2, and 175 ± 18 µm in P3. Pore size distribution from µCT was determined for the range of 20–100 µm, mainly with the highest percentages: 12 ± 1.09% for P1 and 12 ± 1.4% for P2. Pore connectivity was assessed from images by calculating Euler Numbers (EN), with the differences related to the biggest pore (ENbigpore): P1 (−44,223 ± 10,096) and P2 (−44,621 ± 12,573) showed more connected pores (ENbigpore) in comparison to P3 (−11,597 ± 6935). The parameter ENbigpore was decisive in understanding the water retention and conduction processes of the studied soils. The better-connected pore space increased Ksat in P1 (220 ± 0.05 mm h−1 ) and P2 (189 ± 0.1 mm h−1 ) in comparison to P3 (20 ± 0.3 mm h−1 ) and modified the shape of SWRCs.
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spelling X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.Soil water retention curvePore size distributionPore connectivityAbstract: Soil structure controls soil hydraulic properties and is linked to soil aggregation processes. The aggregation processes of Oxisols are controlled mainly by clay mineralogy and biological activity. Computed microtomography (µCT) may be a tool for improving the knowledge of the hydraulic properties of these soils. Thus, this study brings an advance in the use of 3D image analysis to better comprehend the water behavior in tropical soils. In this work, three Oxisols were studied with the objective to (i) characterize the soil water retention curve (SWRC), the corresponding pore size frequency, and the saturated hydraulic conductivity (Ksat); (ii) use µCT to obtain, based on 3D images of soil structure and pore size distribution; and (iii) correlating parameters from SWRCs, Ksat, and µCT with other physical-hydric, chemical, and mineralogical attributes. Rhodic Haplustox—P1, Anionic Acrustox—P2, and Typic Hapludox—P3 were the three studied Oxisols. The differences among the SWRCs were related to the microgranular and block type’s structure morphology, which modified the soil pore space. The pore size frequency was calculated from SWRCs for pores with diameters of 87 ± 2 µm in P1, 134 ± 11µm in P2, and 175 ± 18 µm in P3. Pore size distribution from µCT was determined for the range of 20–100 µm, mainly with the highest percentages: 12 ± 1.09% for P1 and 12 ± 1.4% for P2. Pore connectivity was assessed from images by calculating Euler Numbers (EN), with the differences related to the biggest pore (ENbigpore): P1 (−44,223 ± 10,096) and P2 (−44,621 ± 12,573) showed more connected pores (ENbigpore) in comparison to P3 (−11,597 ± 6935). The parameter ENbigpore was decisive in understanding the water retention and conduction processes of the studied soils. The better-connected pore space increased Ksat in P1 (220 ± 0.05 mm h−1 ) and P2 (189 ± 0.1 mm h−1 ) in comparison to P3 (20 ± 0.3 mm h−1 ) and modified the shape of SWRCs.University of São Paulo-“Luiz de Queiroz” College of AgricultureBrazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM)Laboratory of Physics Applied to Soils and Environmental Sciences, State University of Ponta GrossaDepartment of Soil Science, University of São Paulo-“Luiz de Queiroz” College of AgricultureDepartment of Soil Science, Faculty of Ecological Agriculture, University of KasselInstitute of Soil Science, Leibniz Universität HannoverCARLOS MANOEL PEDRO VAZ, CNPDIADepartment of Soil Science, University of São Paulo-“Luiz de Queiroz” College of Agriculture.PESSOA, T. N.FERREIRA, T. R.PIRES, L. F.COOPER, M.UTEAU, D.PETH, S.VAZ, C. M. P.LIBARDI, P. L.2024-01-16T11:42:29Z2024-01-16T11:42:29Z2023-07-262023info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14 p.Agriculture, v. 13, n. 28, 2023.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1155317https://doi.org/10.3390/agriculture13010028enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2024-01-16T11:42:29Zoai:www.alice.cnptia.embrapa.br:doc/1155317Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542024-01-16T11:42:29falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542024-01-16T11:42:29Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
title X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
spellingShingle X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
PESSOA, T. N.
Soil water retention curve
Pore size distribution
Pore connectivity
title_short X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
title_full X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
title_fullStr X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
title_full_unstemmed X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
title_sort X-ray Microtomography for Investigating Pore Space and Its Relation to Water Retention and Conduction in Highly Weathered Soils.
author PESSOA, T. N.
author_facet PESSOA, T. N.
FERREIRA, T. R.
PIRES, L. F.
COOPER, M.
UTEAU, D.
PETH, S.
VAZ, C. M. P.
LIBARDI, P. L.
author_role author
author2 FERREIRA, T. R.
PIRES, L. F.
COOPER, M.
UTEAU, D.
PETH, S.
VAZ, C. M. P.
LIBARDI, P. L.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv University of São Paulo-“Luiz de Queiroz” College of Agriculture
Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM)
Laboratory of Physics Applied to Soils and Environmental Sciences, State University of Ponta Grossa
Department of Soil Science, University of São Paulo-“Luiz de Queiroz” College of Agriculture
Department of Soil Science, Faculty of Ecological Agriculture, University of Kassel
Institute of Soil Science, Leibniz Universität Hannover
CARLOS MANOEL PEDRO VAZ, CNPDIA
Department of Soil Science, University of São Paulo-“Luiz de Queiroz” College of Agriculture.
dc.contributor.author.fl_str_mv PESSOA, T. N.
FERREIRA, T. R.
PIRES, L. F.
COOPER, M.
UTEAU, D.
PETH, S.
VAZ, C. M. P.
LIBARDI, P. L.
dc.subject.por.fl_str_mv Soil water retention curve
Pore size distribution
Pore connectivity
topic Soil water retention curve
Pore size distribution
Pore connectivity
description Abstract: Soil structure controls soil hydraulic properties and is linked to soil aggregation processes. The aggregation processes of Oxisols are controlled mainly by clay mineralogy and biological activity. Computed microtomography (µCT) may be a tool for improving the knowledge of the hydraulic properties of these soils. Thus, this study brings an advance in the use of 3D image analysis to better comprehend the water behavior in tropical soils. In this work, three Oxisols were studied with the objective to (i) characterize the soil water retention curve (SWRC), the corresponding pore size frequency, and the saturated hydraulic conductivity (Ksat); (ii) use µCT to obtain, based on 3D images of soil structure and pore size distribution; and (iii) correlating parameters from SWRCs, Ksat, and µCT with other physical-hydric, chemical, and mineralogical attributes. Rhodic Haplustox—P1, Anionic Acrustox—P2, and Typic Hapludox—P3 were the three studied Oxisols. The differences among the SWRCs were related to the microgranular and block type’s structure morphology, which modified the soil pore space. The pore size frequency was calculated from SWRCs for pores with diameters of 87 ± 2 µm in P1, 134 ± 11µm in P2, and 175 ± 18 µm in P3. Pore size distribution from µCT was determined for the range of 20–100 µm, mainly with the highest percentages: 12 ± 1.09% for P1 and 12 ± 1.4% for P2. Pore connectivity was assessed from images by calculating Euler Numbers (EN), with the differences related to the biggest pore (ENbigpore): P1 (−44,223 ± 10,096) and P2 (−44,621 ± 12,573) showed more connected pores (ENbigpore) in comparison to P3 (−11,597 ± 6935). The parameter ENbigpore was decisive in understanding the water retention and conduction processes of the studied soils. The better-connected pore space increased Ksat in P1 (220 ± 0.05 mm h−1 ) and P2 (189 ± 0.1 mm h−1 ) in comparison to P3 (20 ± 0.3 mm h−1 ) and modified the shape of SWRCs.
publishDate 2023
dc.date.none.fl_str_mv 2023-07-26
2023
2024-01-16T11:42:29Z
2024-01-16T11:42:29Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Agriculture, v. 13, n. 28, 2023.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1155317
https://doi.org/10.3390/agriculture13010028
identifier_str_mv Agriculture, v. 13, n. 28, 2023.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1155317
https://doi.org/10.3390/agriculture13010028
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14 p.
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repository.mail.fl_str_mv cg-riaa@embrapa.br
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