Oxygen cycle biological feedback

Biological feedbacks to the global nitrogen, carbon, and oxygen cycles 1549... 

Biological feedbacks into the global nitrogen and oxygen cycles are intricately dependant on cfimate patterns and oceanic circulation which also influence trace metal availabifity in the upper ocean (Fig. 35.5). In this section we explore future scenarios in the oceanic nitrogen, carbon and oxygen cycles due to shifts in aeolian iron availabifity, variations in climate, and ocean circulation. 

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