+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Three-dimensional visualization and quantification of soil macroporosity and water flow patterns using computed tomography

Three-dimensional visualization and quantification of soil macroporosity and water flow patterns using computed tomography

Soil Use and Management 18(2): 142-151

Efforts to assess the role of soil structure in soil and water processes have been limited by data based on two dimensional geometry or disturbed samples. Computed tomography (CT) is a non-invasive technique that allows for the three dimensional, non-destructive examination of heterogeneous materials. X-ray CT scanning was used to acquire serial images of contrasting soil types that could be used to render, and hence, quantify important soil constituents in three dimensions. By repeating the scanning techniques after an infiltration period, it was also possible to examine the nature of water movement in real time. Macropore architecture between different soil types was highly variable and generally appeared as unconnected pore segments at the resolution examined. As expected, water flow characteristics were similar to macropore structure, with wetting patterns resembling both Darcian and preferential flow identified in different soils. From this, it was found that in the sandy clay soil c. 90% of macropore space was active following infiltration, compared with c. 50% for the sandy loam soil. In addition, it was possible to visualize the three dimensional distribution of stones and other mineral material. The results illustrated the benefits of computed tomography over more conventional analyses of soil structure, and its potential as a tool for examining dynamic soil processes. However, problems associated with accessibility, resolution and artefacts still provide limitations of the technique.

(PDF emailed within 0-6 h: $19.90)

Accession: 003987920

Download citation: RISBibTeXText

DOI: 10.1111/j.1475-2743.2002.tb00232.x

Related references

Visualization and quantification of the effects of cereal root lodging on three-dimensional soil macrostructure using X-ray computed tomography. Soil Science 171(9): 706-718, 2006

Three-dimensional quantification and visualization of aortic calcification by multidetector-row computed tomography: a simple approach using a volume-rendering method. Atherosclerosis 239(2): 622-628, 2015

Three-dimensional visualization and quantification of non-aqueous phase liquid volumes in natural porous media using a medical X-ray Computed Tomography scanner. Journal of Contaminant Hydrology 93(1-4): 96-110, 2007

Stenting creates marked angiogenesis of adventitial vasa vasorum in porcine coronary arteries Visualization and quantification by microscopic 3-dimensional micro computed tomography. Circulation 100(18 SUPPL ): I 226, Nov 2, 1999

Three-Dimensional Magnetic Resonance Imaging Quantification of Glenoid Bone Loss Is Equivalent to 3-Dimensional Computed Tomography Quantification: Cadaveric Study. Arthroscopy, 2016

Visualization of the three-dimensional water-flow paths in calcareous soil using iodide water tracer. Geoderma 200-201: 85-89, 2013

Evaluation of soil-pore continuity using geostatistical analysis on macroporosity in serial sections obtained by computed tomography scanning. Anderson, S H, Hopmans, J W SSSA Special Publication; Tomography of soil-water-root processes 73-86, 1994

Alveolar nerve unfolding technique for synoptic analysis: visualization and quantification of inferior alveolar nerve tracings in three-dimensional cone-beam computed tomography. Journal of Craniofacial Surgery 24(4): E374-E377, 2014

Non-destructive visualization and quantification of roots using computed tomography. Soil biology and biochemistry 39(2): 391-399, 2007

A new method of validating pesticide preferential flow through three-dimensional imagery of soil pore structure and space using computed tomography. Preferential flow: proceedings of the National Symposium, Chicago, Illinois, USA, 16-17 December 1991: 129-141, 1991

Frameless image-guided stereotactic body radiation therapy for lung tumors with 4-dimensional computed tomography or 4-dimensional positron emission tomography/ computed tomography. Clinical Lung Cancer 12(3): 180-186, 2011

Visualization of perimembranous ventricular septal defect with ruptured sinus of Valsalva aneurysm by three-dimensional transesophageal echocardiography and multidetector three-dimensional computed tomography. Journal of Echocardiography 15(1): 37-38, 2016

The use of 1 dimensional and 2 dimensional scatter deconvolution techniques for contrast enhancement and quantification in single photon emission computed tomography. Journal of Nuclear Medicine 27(6): 884, 1986

Seeing space: visualization and quantification of plant leaf structure using X-ray micro-computed tomography. Journal of Experimental Botany 64(2): 385-390, 2013

Visualization and quantification of coronary calcifications with electron beam and spiral computed tomography. European Radiology 10(4): 629-635, 2000