Preferential Solute Flow in Intact Soil Columns Measured by SPECT Scanning
Single photon emission computed tomography (SPECT) is an imaging technique that is widely used in medical diagnosis. This technique has never been applied to soils. The objective of this study was to investigate the capabilities of SPECT scanning for visualizing preferential flow in soil. This paper...
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| Veröffentlicht in: | Soil Science Society of America journal 2000-03, Vol.64 (2), p.469-477 |
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| container_title | Soil Science Society of America journal |
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| creator | Perret, Johan Prasher, S. O. Kantzas, A. Hamilton, K. Langford, C. |
| description | Single photon emission computed tomography (SPECT) is an imaging technique that is widely used in medical diagnosis. This technique has never been applied to soils. The objective of this study was to investigate the capabilities of SPECT scanning for visualizing preferential flow in soil. This paper describes the principle of SPECT scanning and its application to tracer breakthroughs in four large undisturbed soil columns (800‐mm length × 77‐mm diam.). This new approach allows real‐time analysis of flow patterns of radioactive tracers in 2‐D using planar imaging, and in 3‐D using the tomographic capabilities of the SPECT scanner. Not only does SPECT scanning provide qualitative data, but it also allows for the quantification of a tracer's spatial distribution. Our results characterized preferential flow very clearly in soil columns. SPECT scanning opens up new avenues for 2‐D and 3‐D tracer studies in porous media such as soils. |
| doi_str_mv | 10.2136/sssaj2000.642469x |
| format | Article |
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O.</creatorcontrib><creatorcontrib>Kantzas, A.</creatorcontrib><creatorcontrib>Hamilton, K.</creatorcontrib><creatorcontrib>Langford, C.</creatorcontrib><title>Preferential Solute Flow in Intact Soil Columns Measured by SPECT Scanning</title><title>Soil Science Society of America journal</title><description>Single photon emission computed tomography (SPECT) is an imaging technique that is widely used in medical diagnosis. This technique has never been applied to soils. The objective of this study was to investigate the capabilities of SPECT scanning for visualizing preferential flow in soil. This paper describes the principle of SPECT scanning and its application to tracer breakthroughs in four large undisturbed soil columns (800‐mm length × 77‐mm diam.). This new approach allows real‐time analysis of flow patterns of radioactive tracers in 2‐D using planar imaging, and in 3‐D using the tomographic capabilities of the SPECT scanner. Not only does SPECT scanning provide qualitative data, but it also allows for the quantification of a tracer's spatial distribution. Our results characterized preferential flow very clearly in soil columns. SPECT scanning opens up new avenues for 2‐D and 3‐D tracer studies in porous media such as soils.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Computed tomography</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Emission measurements</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Physical properties</subject><subject>Physics</subject><subject>Physics, chemistry, biochemistry and biology of agricultural and forest soils</subject><subject>Soil columns</subject><subject>Soil science</subject><subject>Soils</subject><subject>Surficial geology</subject><subject>Tomography</subject><subject>Water</subject><subject>Water and solute dynamics</subject><issn>0361-5995</issn><issn>1435-0661</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWB8_wF0QwdXozeTRzLIMvkpFYRTchUyakSlppiYz1P57Iy0KbtzcC-d-93A4CJ0RuMoJFdcxRr3IAeBKsJyJ4nMPjQijPAMhyD4aARUk40XBD9FRjAsAwguAEZo-B9vYYH3faoerzg29xbeuW-PW4wffa9MntXW4TKelj_jR6jgEO8f1BlfPN-ULroz2vvXvJ-ig0S7a090-Rq-3Ny_lfTZ7unsoJ7NMM8LeMsloXVPDdM2lIDXn3BioQctagrXGNM3cUJoXMjdjSYllUowNr40pGJV2bukxutz6rkL3MdjYq2UbjXVOe9sNUY0ZpVIKmify_A-56IbgUziVEwFcgoQEkS1kQhdjakOtQrvUYaMIqO9u1U-3atdt-rnYGetotGuC9qaNv49MpujjhJVbbN06u_nfV1WTaV5V3zOpW_GNfgHyko4I</recordid><startdate>200003</startdate><enddate>200003</enddate><creator>Perret, Johan</creator><creator>Prasher, S. 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Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Computed tomography</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Emission measurements</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Physical properties</topic><topic>Physics</topic><topic>Physics, chemistry, biochemistry and biology of agricultural and forest soils</topic><topic>Soil columns</topic><topic>Soil science</topic><topic>Soils</topic><topic>Surficial geology</topic><topic>Tomography</topic><topic>Water</topic><topic>Water and solute dynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Perret, Johan</creatorcontrib><creatorcontrib>Prasher, S. O.</creatorcontrib><creatorcontrib>Kantzas, A.</creatorcontrib><creatorcontrib>Hamilton, K.</creatorcontrib><creatorcontrib>Langford, C.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Soil Science Society of America journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Perret, Johan</au><au>Prasher, S. O.</au><au>Kantzas, A.</au><au>Hamilton, K.</au><au>Langford, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preferential Solute Flow in Intact Soil Columns Measured by SPECT Scanning</atitle><jtitle>Soil Science Society of America journal</jtitle><date>2000-03</date><risdate>2000</risdate><volume>64</volume><issue>2</issue><spage>469</spage><epage>477</epage><pages>469-477</pages><issn>0361-5995</issn><eissn>1435-0661</eissn><coden>SSSJD4</coden><abstract>Single photon emission computed tomography (SPECT) is an imaging technique that is widely used in medical diagnosis. This technique has never been applied to soils. The objective of this study was to investigate the capabilities of SPECT scanning for visualizing preferential flow in soil. This paper describes the principle of SPECT scanning and its application to tracer breakthroughs in four large undisturbed soil columns (800‐mm length × 77‐mm diam.). This new approach allows real‐time analysis of flow patterns of radioactive tracers in 2‐D using planar imaging, and in 3‐D using the tomographic capabilities of the SPECT scanner. Not only does SPECT scanning provide qualitative data, but it also allows for the quantification of a tracer's spatial distribution. Our results characterized preferential flow very clearly in soil columns. SPECT scanning opens up new avenues for 2‐D and 3‐D tracer studies in porous media such as soils.</abstract><cop>Madison</cop><pub>Soil Science Society</pub><doi>10.2136/sssaj2000.642469x</doi><tpages>9</tpages></addata></record> |
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| subjects | Agronomy. Soil science and plant productions Biological and medical sciences Computed tomography Earth sciences Earth, ocean, space Emission measurements Exact sciences and technology Fundamental and applied biological sciences. Psychology Physical properties Physics Physics, chemistry, biochemistry and biology of agricultural and forest soils Soil columns Soil science Soils Surficial geology Tomography Water Water and solute dynamics |
| title | Preferential Solute Flow in Intact Soil Columns Measured by SPECT Scanning |
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