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Note on the Occurrence of Elementary Carbon in Soils

Published online by Cambridge University Press:  27 March 2009

G. W. Robinson
Affiliation:
University College of North Wales, Bangor
W. McLean
Affiliation:
University College of North Wales, Bangor

Extract

In the course of determinations of organic carbon in soils, some unexpectedly high figures suggested the possibility that free carbon in the form of fragments of coal or cinder might affect appreciably the results obtained. The soils in question were from the Coal Measure district of Flintshire, and the presence of notable amounts of coal was not surprising. Even in soils from other districts, however, it is not unusual to find small carbonaceous fragments, which are generally noticeable in the coarse sand separated in mechanical analysis. Their presence is not difficult to explain, for domestic ashes containing unburnt coal or cinders are often thrown on to the manure heap, and thus get carted on to the soil where they persist unaltered. The highest proportions of elementary carbon may be expected in heavily manured soils such as those of gardens.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1930

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