Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography
Soil microaggregates are the fundamental building block, at the micron scale, of the highly hierarchical structure of soils, and can exert a significant control on the local biological metabolism and microbial community partitioning. In this study we propose an analysis protocol for the morphometric...
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Online Access: | http://hdl.handle.net/2434/908386 https://doi.org/10.1016/j.geoderma.2017.06.005 |
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ftunivmilanoair:oai:air.unimi.it:2434/908386 2024-02-11T10:02:29+01:00 Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography Voltolini, Marco Taş, Neslihan Wang, Shi Brodie, Eoin L. Ajo-Franklin, Jonathan B. M. Voltolini N. Taş S. Wang E.L. Brodie J.B. Ajo-Franklin 2017 http://hdl.handle.net/2434/908386 https://doi.org/10.1016/j.geoderma.2017.06.005 eng eng Elsevier info:eu-repo/semantics/altIdentifier/wos/WOS:000408075900038 volume:305 firstpage:382 lastpage:393 numberofpages:12 journal:GEODERMA http://hdl.handle.net/2434/908386 doi:10.1016/j.geoderma.2017.06.005 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85021845381 info:eu-repo/semantics/closedAccess Modeling Quantitative image analysi Soil microaggregate Synchrotron X-ray microCT Settore GEO/06 - Mineralogia Settore GEO/09 - Georisorse Miner.Appl.Mineral.-Petrogr.per l'amb.e i Beni Cul info:eu-repo/semantics/article 2017 ftunivmilanoair https://doi.org/10.1016/j.geoderma.2017.06.005 2024-01-16T23:35:35Z Soil microaggregates are the fundamental building block, at the micron scale, of the highly hierarchical structure of soils, and can exert a significant control on the local biological metabolism and microbial community partitioning. In this study we propose an analysis protocol for the morphometric characterization of complete soil microaggregates based on sub-micron resolution synchrotron X-ray microtomography. A comprehensive characterization of the aggregate morphology is the first step towards a complete characterization of the soil microaggregates, when trying to correlate morphometric parameters with physical and/or biological properties, or when building models (e.g., effective diffusivity, microbial distribution, etc.). We demonstrate our characterization approach on two single microaggregate samples from dramatically different soil environments: one from Kansas, primarily composed by inorganic particles, and one from Barrow (Alaska) dominated by plant fragments. A series of state-of-the-art morphometric analysis techniques have been employed providing quantitative results highlighting specific differences of the two samples. The role of the microstructure in a scenario microbial population development has been discussed and it has been found that the Barrow microaggregate seems to be more favorable, from a purely geometrical point of view, as also confirmed by a simple model presented in this work. The potential of this approach, when coupled with chemical and biological analysis for a fully comprehensive characterization of soil aggregates in the larger picture of enhanced biological activity, is evident. Article in Journal/Newspaper Barrow Alaska The University of Milan: Archivio Istituzionale della Ricerca (AIR) Geoderma 305 382 393 |
institution |
Open Polar |
collection |
The University of Milan: Archivio Istituzionale della Ricerca (AIR) |
op_collection_id |
ftunivmilanoair |
language |
English |
topic |
Modeling Quantitative image analysi Soil microaggregate Synchrotron X-ray microCT Settore GEO/06 - Mineralogia Settore GEO/09 - Georisorse Miner.Appl.Mineral.-Petrogr.per l'amb.e i Beni Cul |
spellingShingle |
Modeling Quantitative image analysi Soil microaggregate Synchrotron X-ray microCT Settore GEO/06 - Mineralogia Settore GEO/09 - Georisorse Miner.Appl.Mineral.-Petrogr.per l'amb.e i Beni Cul Voltolini, Marco Taş, Neslihan Wang, Shi Brodie, Eoin L. Ajo-Franklin, Jonathan B. Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography |
topic_facet |
Modeling Quantitative image analysi Soil microaggregate Synchrotron X-ray microCT Settore GEO/06 - Mineralogia Settore GEO/09 - Georisorse Miner.Appl.Mineral.-Petrogr.per l'amb.e i Beni Cul |
description |
Soil microaggregates are the fundamental building block, at the micron scale, of the highly hierarchical structure of soils, and can exert a significant control on the local biological metabolism and microbial community partitioning. In this study we propose an analysis protocol for the morphometric characterization of complete soil microaggregates based on sub-micron resolution synchrotron X-ray microtomography. A comprehensive characterization of the aggregate morphology is the first step towards a complete characterization of the soil microaggregates, when trying to correlate morphometric parameters with physical and/or biological properties, or when building models (e.g., effective diffusivity, microbial distribution, etc.). We demonstrate our characterization approach on two single microaggregate samples from dramatically different soil environments: one from Kansas, primarily composed by inorganic particles, and one from Barrow (Alaska) dominated by plant fragments. A series of state-of-the-art morphometric analysis techniques have been employed providing quantitative results highlighting specific differences of the two samples. The role of the microstructure in a scenario microbial population development has been discussed and it has been found that the Barrow microaggregate seems to be more favorable, from a purely geometrical point of view, as also confirmed by a simple model presented in this work. The potential of this approach, when coupled with chemical and biological analysis for a fully comprehensive characterization of soil aggregates in the larger picture of enhanced biological activity, is evident. |
author2 |
M. Voltolini N. Taş S. Wang E.L. Brodie J.B. Ajo-Franklin |
format |
Article in Journal/Newspaper |
author |
Voltolini, Marco Taş, Neslihan Wang, Shi Brodie, Eoin L. Ajo-Franklin, Jonathan B. |
author_facet |
Voltolini, Marco Taş, Neslihan Wang, Shi Brodie, Eoin L. Ajo-Franklin, Jonathan B. |
author_sort |
Voltolini, Marco |
title |
Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography |
title_short |
Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography |
title_full |
Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography |
title_fullStr |
Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography |
title_full_unstemmed |
Quantitative characterization of soil micro-aggregates : New opportunities from sub-micron resolution synchrotron X-ray microtomography |
title_sort |
quantitative characterization of soil micro-aggregates : new opportunities from sub-micron resolution synchrotron x-ray microtomography |
publisher |
Elsevier |
publishDate |
2017 |
url |
http://hdl.handle.net/2434/908386 https://doi.org/10.1016/j.geoderma.2017.06.005 |
genre |
Barrow Alaska |
genre_facet |
Barrow Alaska |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000408075900038 volume:305 firstpage:382 lastpage:393 numberofpages:12 journal:GEODERMA http://hdl.handle.net/2434/908386 doi:10.1016/j.geoderma.2017.06.005 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85021845381 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.geoderma.2017.06.005 |
container_title |
Geoderma |
container_volume |
305 |
container_start_page |
382 |
op_container_end_page |
393 |
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1790598500211228672 |