SUMMARY OF BIOGEOCHEMICAL CYCLES

The nitrogen cycle is complex then in part because of the many chemical forms of N such as: Organic-N; NO3; NH4; and the gases N2, N2O, NO + NO2 (=NOx). Figure 10 below gives an overview of the global nitrogen cycle. Figure 10. The Global Nitrogen Cycle. Accounting . Just as we did for the water cycle, or first step in understanding the nitrogen cycle is to examine the distribution of N on ... ................
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