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3-d vis alizat10n of soil macroporosity sing x-ray cat scanning
Authors: J. Perret. S.O. Prasher. A. Kantzas and C. Langford
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Download file: https://library.csbe-scgab.ca/docs/journal/39/39_4_249_ocr.pdf
Published in: CBE Journal » CBE Journal Volume 39 (1997)
Download RAW file: https://library.csbe-scgab.ca/docs/journal/39/39_4_249_raw.pdf
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Description: Computer assisted Tomography (CAT) offers considerable potential for reliable and nondestructive in-situ characterization of macropores occurring in agricultural soils. Several researchers have used CAT techniques for characterizing soil macropores of small undisturbed soil cores. However, there is still a need to develop comprehensive algorithms to automate the analysis and interpretation of macropore geometry directly from CAT scan data. Four undisturbed soil columns (800 mm long x 77 mm diameter) were extracted from a loamy sand field in central Canada and scanned for the visualization and characterization of their interconnecting macropore structure. A total of 240 scans of 3-mm depth were taken for each column. After conversion of the raw CAT scan data into density matrices, two- and three-dimensional soil density reconstructions were generated. With the elaboration of numerous computer programs in the PV-WAVE language, this analysis gives a detailed representation of the spatial variations of the macropore structure and heterogeneity of soil.
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Citation: J. Perret. S.O. Prasher. A. Kantzas and C. Langford 1997. 3-D VIS ALIZAT10N OF SOIL MACROPOROSITY SING X-RAY CAT SCANNING. Canadian Agricultural Engineering 39(4):249-261.
Volume: 39
Issue: 4
Pages -
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Date: 1997
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Type: Text.Article
Format: PDF
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Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
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DOI:
Description: Computer assisted Tomography (CAT) offers considerable potential for reliable and nondestructive in-situ characterization of macropores occurring in agricultural soils. Several researchers have used CAT techniques for characterizing soil macropores of small undisturbed soil cores. However, there is still a need to develop comprehensive algorithms to automate the analysis and interpretation of macropore geometry directly from CAT scan data. Four undisturbed soil columns (800 mm long x 77 mm diameter) were extracted from a loamy sand field in central Canada and scanned for the visualization and characterization of their interconnecting macropore structure. A total of 240 scans of 3-mm depth were taken for each column. After conversion of the raw CAT scan data into density matrices, two- and three-dimensional soil density reconstructions were generated. With the elaboration of numerous computer programs in the PV-WAVE language, this analysis gives a detailed representation of the spatial variations of the macropore structure and heterogeneity of soil.
Keywords:
Résumé:
Mots-clés:
Citation: J. Perret. S.O. Prasher. A. Kantzas and C. Langford 1997. 3-D VIS ALIZAT10N OF SOIL MACROPOROSITY SING X-RAY CAT SCANNING. Canadian Agricultural Engineering 39(4):249-261.
Volume: 39
Issue: 4
Pages -
Contributor:
Date: 1997
Technical field:
Conference name:
Session name:
Other information:
Type: Text.Article
Format: PDF
Publication type:
Source:
Relation:
Coverage: Canada
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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