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Simple, Low-Cost Image Analysis of Soil Pore Structure

✍ Scribed by E.A.G. Robertson; D.J. Campbell

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
281 KB
Volume
68
Category
Article
ISSN
0021-8634

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✦ Synopsis

A low-cost method to obtain and analyse digital images of prepared soil sample faces is described. Soil samples are stabilized and pore space is highlighted using a hardsetting resin. The sample faces are photographed using a 35 mm SLR camera fitted with a macro-lens and digital images of the negatives or slides are transferred on to Kodak Photo-CD. The images are analysed using customwritten software on a standard IBM-compatible PC. Various soil structural characteristics are evaluated that have previously required greater resources for evaluation.

The method is illustrated with images of three contrasting soil compaction treatments from a field experiment and the results obtained are examined in relation to gas movement measurements.

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