Details

Autor(en) / Beteiligte

• KIMPE, C. R. DE
• LAVERDIERE, M. R.
• MARTEL, Y. A.

Titel

SURFACE AREA AND EXCHANGE CAPACITY OF CLAY IN RELATION TO THE MINERALOGICAL COMPOSITION OF GLEYSOLIC SOILS

Ist Teil von

• Canadian journal of soil science, 1979-11, Vol.59 (4), p.341-347

Erscheinungsjahr

1979

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A study was made to determine to what extent the mineralogical composition of the clay fraction can be related to the total surface area (S o ) as well as the cation exchange capacity (CEC) values of Gleysolic soils. Eleven soil profiles were sampled in the regions of Montreal, Quebec and Lake St-Jean. Mineralogical composition, surface area and exchange capacity of the clay fraction, and surface area and exchange capacity of the soils were determined. Results showed good agreement between the experimental measurements of surface area and exchange capacity and the calculated figures obtained by using mineralogical composition and theoretical values of S o and CEC of each mineral. The variations in the mineralogical composition of the clay fraction were related to the difference in the degree of evolution of the soils in the three regions.