Memorizing diagrams of the nitrogen cycle – complete with all the little arrows flowing between atmospheric sources to uptake by vegetation – is a rite of passage for most undergraduate ecology ...

A schmetic diagram of the nitrogen cycle (Reprinted from Current Tides, Volume 3.) A weekly time series to study the nitrogen cycle in the dark bottom water of the Bedford Basin. A project led by CERC ...

Vitousek, P. M. et al. Human alteration of the global nitrogen cycle: sources and consequences. Ecological Applications 7, 737–750 (1997).