Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles
Root growth alters soil fabric and consequently its mechanical and physical properties. Recent studies show that roots induce compaction of soil in their immediate vicinity, a region that is central for plant health. However, high quality quantification of root influence on the soil fabric, able to...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_11005.pdf |
| _version_ | 1819151421969268736 |
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| author | Lascurain Tomás Angelidakis Vasileios Luli Saimir Nadimi Sadegh |
| author_facet | Lascurain Tomás Angelidakis Vasileios Luli Saimir Nadimi Sadegh |
| author_sort | Lascurain Tomás |
| collection | DOAJ |
| description | Root growth alters soil fabric and consequently its mechanical and physical properties. Recent studies show that roots induce compaction of soil in their immediate vicinity, a region that is central for plant health. However, high quality quantification of root influence on the soil fabric, able to inform computational models is lacking from the literature. This study quantifies the relationship between soil physical characteristics and root growth, giving special emphasis on how roots in early stage formation influence the physical architecture of the surrounding soil structure. High-resolution X-ray micro-Computed Tomography (µCT) is used to acquire three dimensional images of two homogeneously-packed samples. It is observed that the void ratio profile extending from the soil-root interface into the bulk soil is altered by root growth. The roots considerably modify the immediate soil physical characteristics by creating micro cracks at the soil-root interface and by increasing void ratio. This paper presents the mechanisms that led to the observed structure as well as some of the implications that it has in such a dynamic zone. |
| first_indexed | 2024-12-22T14:33:08Z |
| format | Article |
| id | doaj.art-c7f418de7405445bb960c29cdfbe1661 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-22T14:33:08Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-c7f418de7405445bb960c29cdfbe16612022-12-21T18:22:42ZengEDP SciencesEPJ Web of Conferences2100-014X2021-01-012491100510.1051/epjconf/202124911005epjconf_pg2021_11005Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profilesLascurain Tomás0Angelidakis Vasileios1Luli Saimir2Nadimi Sadegh3School of Engineering, Newcastle UniversitySchool of Engineering, Newcastle UniversityPreclinical In Vivo Imaging Facility, Faculty of Medical Sciences, Newcastle UniversitySchool of Engineering, Newcastle UniversityRoot growth alters soil fabric and consequently its mechanical and physical properties. Recent studies show that roots induce compaction of soil in their immediate vicinity, a region that is central for plant health. However, high quality quantification of root influence on the soil fabric, able to inform computational models is lacking from the literature. This study quantifies the relationship between soil physical characteristics and root growth, giving special emphasis on how roots in early stage formation influence the physical architecture of the surrounding soil structure. High-resolution X-ray micro-Computed Tomography (µCT) is used to acquire three dimensional images of two homogeneously-packed samples. It is observed that the void ratio profile extending from the soil-root interface into the bulk soil is altered by root growth. The roots considerably modify the immediate soil physical characteristics by creating micro cracks at the soil-root interface and by increasing void ratio. This paper presents the mechanisms that led to the observed structure as well as some of the implications that it has in such a dynamic zone.https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_11005.pdf |
| spellingShingle | Lascurain Tomás Angelidakis Vasileios Luli Saimir Nadimi Sadegh Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles EPJ Web of Conferences |
| title | Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles |
| title_full | Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles |
| title_fullStr | Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles |
| title_full_unstemmed | Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles |
| title_short | Imaging the root–rhizosphere interface using micro computed tomography: quantifying void ratio and root volume ratio profiles |
| title_sort | imaging the root rhizosphere interface using micro computed tomography quantifying void ratio and root volume ratio profiles |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2021/03/epjconf_pg2021_11005.pdf |
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