Gas and vapour movements in the soil: II. The diffusion of carbon dioxide through porous solids

A - Papers appearing in refereed journals

Penman, H. L. 1940. Gas and vapour movements in the soil: II. The diffusion of carbon dioxide through porous solids. The Journal of Agricultural Science. 30 (4), pp. 570-581.

AuthorsPenman, H. L.
Abstract

Apparatus for measuring the rate of diffusion of carbon dioxide through granular solids is described and the results obtained with it are shown to conform to the curve connecting D/D0 and S previously obtained for carbon disulphide and acetone. The equation D/D0 = 0·66S, which it is suggested should replace Buckingham's equation D/D0=S2, is applied to a discussion of soil aeration, and it is shown that at all porosities the rate of diffusion of carbon dioxide from the soil is sufficient to account for normal respiration without invoking the assistance of meteorological changes. A further application of the equation to water vapour movement in soils is briefly discussed.

Year of Publication1940
JournalThe Journal of Agricultural Science
Journal citation30 (4), pp. 570-581
Digital Object Identifier (DOI)doi:10.1017/S0021859600048231
Open accessPublished as non-open access
ISSN00218596
0021-8596
PublisherCambridge University Press
Cambridge University Press (CUP)

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