Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses
Cohesive Oxisols are a type of soil common in the Coastal Plateau in Brazil. These soils represent a challenge for agriculture and their study is fundamental to better land use. There have been a few studies on the porous system of cohesive soils on the micrometer scale. Our study aimed to provide a...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Agriculture |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-0472/15/2/200 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832589496532598784 |
|---|---|
| author | Jocenei A. T. de Oliveira Thaís N. Pessoa José V. Gaspareto Adolfo N. D. Posadas André L. F. Lourenço Paulo L. Libardi Luiz F. Pires |
| author_facet | Jocenei A. T. de Oliveira Thaís N. Pessoa José V. Gaspareto Adolfo N. D. Posadas André L. F. Lourenço Paulo L. Libardi Luiz F. Pires |
| author_sort | Jocenei A. T. de Oliveira |
| collection | DOAJ |
| description | Cohesive Oxisols are a type of soil common in the Coastal Plateau in Brazil. These soils represent a challenge for agriculture and their study is fundamental to better land use. There have been a few studies on the porous system of cohesive soils on the micrometer scale. Our study aimed to provide a detailed analysis of the pore complexity of the cohesive horizon of a Brazilian Oxisol using 3D images (volumetric data reconstructed by 2D CT slices) and to correlate these parameters with soil physical–hydric attributes. For this purpose, images with two different resolutions were analyzed from multifractal, lacunarity, and entropy analyses. Additionally, a characterization of hydraulic properties was carried out based on a soil water retention curve (SWRC). No differences were observed between the resolutions for the different physical parameters analyzed. The lacunarity analysis showed a greater homogeneity of the pore system with pores grouped in clusters. The multifractal analysis showed fractal characteristics for the cohesive horizon, suggesting a more homogeneous pore distribution. The main results obtained from the SWRC showed a low available water content due to the predominance of ultramicropores. Overall, the results show a less complex pore system, indicating the presence of pores of small sizes, affecting the water retention and conduction through the soil. |
| format | Article |
| id | doaj-art-bd7f15556903460c9554dd42b3c37d03 |
| institution | Kabale University |
| issn | 2077-0472 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agriculture |
| spelling | doaj-art-bd7f15556903460c9554dd42b3c37d032025-01-24T13:16:06ZengMDPI AGAgriculture2077-04722025-01-0115220010.3390/agriculture15020200Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity AnalysesJocenei A. T. de Oliveira0Thaís N. Pessoa1José V. Gaspareto2Adolfo N. D. Posadas3André L. F. Lourenço4Paulo L. Libardi5Luiz F. Pires6Laboratory of Physics Applied to Soils and Environmental Sciences, Department of Physics, State University of Ponta Grossa, Ponta Grossa CP 84030-900, Paraná, BrazilDepartment of Soil Science, “Luiz de Queiroz” College of Agriculture, University of São Paulo, São Paulo CP 13418-900, Sao Paulo, BrazilLaboratory of Physics Applied to Soils and Environmental Sciences, Department of Physics, State University of Ponta Grossa, Ponta Grossa CP 84030-900, Paraná, BrazilAgriEntech Ltda., São Carlos CP 13560-460, São Paulo, BrazilAgriEntech Ltda., São Carlos CP 13560-460, São Paulo, BrazilDepartment of Soil Science, “Luiz de Queiroz” College of Agriculture, University of São Paulo, São Paulo CP 13418-900, Sao Paulo, BrazilLaboratory of Physics Applied to Soils and Environmental Sciences, Department of Physics, State University of Ponta Grossa, Ponta Grossa CP 84030-900, Paraná, BrazilCohesive Oxisols are a type of soil common in the Coastal Plateau in Brazil. These soils represent a challenge for agriculture and their study is fundamental to better land use. There have been a few studies on the porous system of cohesive soils on the micrometer scale. Our study aimed to provide a detailed analysis of the pore complexity of the cohesive horizon of a Brazilian Oxisol using 3D images (volumetric data reconstructed by 2D CT slices) and to correlate these parameters with soil physical–hydric attributes. For this purpose, images with two different resolutions were analyzed from multifractal, lacunarity, and entropy analyses. Additionally, a characterization of hydraulic properties was carried out based on a soil water retention curve (SWRC). No differences were observed between the resolutions for the different physical parameters analyzed. The lacunarity analysis showed a greater homogeneity of the pore system with pores grouped in clusters. The multifractal analysis showed fractal characteristics for the cohesive horizon, suggesting a more homogeneous pore distribution. The main results obtained from the SWRC showed a low available water content due to the predominance of ultramicropores. Overall, the results show a less complex pore system, indicating the presence of pores of small sizes, affecting the water retention and conduction through the soil.https://www.mdpi.com/2077-0472/15/2/2003D image analysisX-ray microtomographyShannon entropylacunaritypore architecturecohesive horizon |
| spellingShingle | Jocenei A. T. de Oliveira Thaís N. Pessoa José V. Gaspareto Adolfo N. D. Posadas André L. F. Lourenço Paulo L. Libardi Luiz F. Pires Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses Agriculture 3D image analysis X-ray microtomography Shannon entropy lacunarity pore architecture cohesive horizon |
| title | Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses |
| title_full | Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses |
| title_fullStr | Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses |
| title_full_unstemmed | Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses |
| title_short | Characterization of the Pore Network of a Cohesive Oxisol Through Morphological and Pore Complexity Analyses |
| title_sort | characterization of the pore network of a cohesive oxisol through morphological and pore complexity analyses |
| topic | 3D image analysis X-ray microtomography Shannon entropy lacunarity pore architecture cohesive horizon |
| url | https://www.mdpi.com/2077-0472/15/2/200 |
| work_keys_str_mv | AT joceneiatdeoliveira characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses AT thaisnpessoa characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses AT josevgaspareto characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses AT adolfondposadas characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses AT andrelflourenco characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses AT paulollibardi characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses AT luizfpires characterizationoftheporenetworkofacohesiveoxisolthroughmorphologicalandporecomplexityanalyses |