Nitrogen Dynamics
Nitrogen Dynamics
Nitrogen Dynamics
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<strong>Nitrogen</strong> as a Nutrient<br />
<br />
N is needed by all life forms<br />
• Amino acid formation<br />
• Protein synthesis<br />
• Nucleic acid formation<br />
<br />
Natural availability of fixed N is low in most ecosystems<br />
– Fixed N acts as a limiting nutrient (biological(<br />
productivity would<br />
be higher if more fixed N were available)<br />
– Not true in all systems, but often in coastal marine environments
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