Name each of the following transformations of the nitrogen cycle: NO_3 rightarro

Question

Name each of the following transformations of the nitrogen cycle: NO_3 rightarrow N_2 Organic N rightarrow NH_4 N_2 rightarrow NH_4 NH_4^+ rightarrow Organic N NH_4 rightarrow NO_3^- Imagine that you are studying nitrogen dynamics in a coastal system. In your study area, most of the soils are very sandy. Are they likely to have a low or high saturation capacity? Field capacity? After a particularly hard rainstorm, you notice that sewage systems discharge untreated waste containing high levels of nitrogen into your study area? Are the sandy soils likely to retain much of this nitrogen? Why or why not? How is the soil type in your area likely to affect the amount of nitrogen that reaches the ocean following storm events? How would your answer differ for areas where the soil has a much higher clay content?

Explanation / Answer

a) denitrification

Reason : Denitrification is the process that converts nitrate to nitrogen gas

b) ammonification

Reason : process of converting organic N to nitrate

c) nitrogen fixation

Reason : in this process N2 in the atmosphere is converted

d) Anammox (anaerobic ammonia oxidation)

Reason : in this process, nitrite and ammoniaare converted directly into molecular nitrogenN2 gas.

e) nitrification

Reason : Nitrification is the process that converts ammonia to nitrite and then to nitrate. It is an important step

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