Tracers nitrogen cycle

Tank, J. L., J. L. Meyer, D. M. Sanzone, P. J. Mulholland, J. R. Webster, B. J. Peterson, W. M. Wolheim, and Leonard, N. E. 2000. Analysis of nitrogen cycling in a forest stream during autumn using a 15N-tracer addition. Limnology and Oceanography 45 1013-1029. 

Brandes, J. A., Devol, A. H., Yoshinari, T., Jayakumar, D. A., and Naqvi, S. W. A. (1998). Isotopic composition of nitrate in the central Arabian Sea and eastern tropical North Pacific A tracer for mixing and nitrogen cycles. Limnol. Oceanogr. 43(7), 1680—1689. 

Isotope Tracer Methods for Studies OF THE Marine Nitrogen Cycle... 

The initial planning of tracer studies using to measure nitrogen cycle rates requires... 

Nitrogen exists naturally as two stable isotopes, i N (99.6% by atoms) and N (0.4% by atoms). These isotopes can be used to study the marine nitrogen cycle by examination of natural variations in the N/ N ratio, or by the addition of specific tracers that are artificially enriched in N. 

Altabet MA (2005) Isotopic tracers of the marine nitrogen cycle Present and past. In Hutzinger O (ed.) The Handbook of Environmental Chemistry, Vol. 2 Marine Organic Matter Chemical and Biological Markers, pp. 251-294. Berlin Springer. 

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