Global nitrogen-budget

Table 1.3 Present-day (ca 1990) Global marine nitrogen budgets of Codispoti et al. (2001), Gruber (2004), and Galloway et al. (2004)...

Figure 1.15 Schematic budget of the global nitrogen cycle in preindustrial times (black) and how it changed as a result of human intervention (red). Fluxes are in units of Tg N year and inventories (bold italics) inTg N. The flux estimates are based on Gruber and Galloway (2008).

Christensen, J. P., Murray, J. W., Devol, A. H., and Codispoti, L. A. (1987). Denitrification in continental shelf sediments has major impact on the oceanic nitrogen budget. Global Biogeochem. Cycles 1(2), 97-116. 

Holland, E., Dentener, p., Braswell, B., and Sulzman, J. (1999). Contemporary and pre-industrial global reactive nitrogen budgets. Global Biogeochem. Cycles 43, 7—43. 

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