ISSN:
1432-9492
Keywords:
Soil micromorphology
;
image analysis
;
pedofeatures
;
unsupervised classification
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Operational laboratories for quantitative image analysis of soil thin sections are now possible. This paper describes the evolving methodology at the University of Guelph, Ontario, Canada, and its application in selected Canadian soils. The paper deals with the collection of data under transmitted, reflected and circularly polarized illumination. The perfect registration of all data is achieved simply by not moving the thin section. The protocol for analysis of differentiation of voids, organic matrix, clay coatings, carbonate and iron concretions is presented. The storage and retrieval of data from CD-ROMs for analysis and sharing is also outlined. Once the digital imagery is stored it is easily useable for more studies as a greater understanding of the value of data is recognized. The paper makes the case for much greater use of the soil thin sections that already exist in the laboratories around the world.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s10112-998-0004-0
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