RADIOCARBON DATING OF ORGANIC MATTER FROM A CULTIVATED TOPSOIL IN EASTERN CANADA
- 1 August 1977
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Soil Science
- Vol. 57 (3), 375-377
- https://doi.org/10.4141/cjss77-042
Abstract
Radiocarbon dating was used to determine the mean residence time of the organic matter from a Gleysolic Ap horizon of eastern Canada. The total soil organic matter and the fulvic acids dated modern, the humic acids as 1,220 ± 150 yr B.P. and the humin as 180 ± 100 yr B.P. Acid hydrolysis of the total soil organic matter yielded a soluble fraction dating modern and an unhydrolyzed material dating 1,530 ± 110 yr B.P. Acid hydrolysis of this topsoil appears practical to separate the soil organic matter into two fractions of different stability. Fractionation into fulvic, humic acids and humin may help to give information on the dynamics of the soil organic matter by separating the soil into at least three fractions of varying stability.Keywords
This publication has 2 references indexed in Scilit:
- FRACTIONATION OF SOIL AND 15N NITROGEN TO SEPARATE THE ORGANIC AND CLAY INTERACTIONS OF IMMOBILIZED NCanadian Journal of Soil Science, 1976
- APPLICABILITY OF THE CARBON-DATING METHOD OF ANALYSIS TO SOIL HUMUS STUDIESSoil Science, 1967