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14C Dating and Soil Organic Matter Dynamics in Arctic and Subarctic Ecosystems

Published online by Cambridge University Press:  18 July 2016

A. E. Cherkinsky
A. E. Cherkinsky*
Affiliation:
Krueger Enterprises, Inc., Geochron Laboratories Division, 711 Concord Avenue, Cambridge, Massachusetts 02138-1002 USA
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Abstract

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The carbon content, pH and 14C concentration of humic acids were determined for three soil series of Arctic and Subarctic ecosystems. The measured 14C ages were interpreted in the light of an equilibrium model of humus formation and of mineralization processes in recent soils, and the coefficient of renovation, Kr, was calculated for humic acids. The comparison of Kr for series formed under different climatic conditions suggested that global warming could accelerate decomposition of soil organic matter and possibly increase productivity of ecosystems of the Arctic region.

Type
14C and Soil Dynamics: Special Section
Information
Radiocarbon , Volume 38 , Issue 2 , 1996 , pp. 241 - 245
Copyright
Copyright © The American Journal of Science 

References

Cherkinsky, A. E. and Brovkin, V. A. 1993 Dynamics of radiocarbon in soils. Radiocarbon 35(3): 363–367.Google Scholar
Gupta, S. K. and Polach, H.A. 1985 Radiocarbon dating practices at ANU. Handbook. Canberra, Australian National University.Google Scholar
Stuiver, M. and Polach, H. A. 1977 Discussion: Reporting of 14C data. Radiocarbon 19(3): 355–363.Google Scholar