Physical Geography 101
Biogeochemical Cycles Study Guide


After the "Biogeochemical Cycles" lecture and readings you should be able to answer and discuss the following questions.

What are the various Biogeochemical Cycles?

Which of these cycles has been discussed in detail in this course?

What is meant by the term global carbon cycle?

Describe the processes of movement of carbon from the atmosphere to the various reservoirs?

Describe the processes of movement of carbon from the oceans to the various reservoirs?

Describe the processes of movement of carbon from the land, rock and plants to the various reservoirs?

What are the various carbon reservoirs?

Of these carbon reservoirs, which one accounts for the largest amount of stored carbon?

Of these carbon reservoirs, which one has gotten the most media coverage in terms of impact on global warming?

Of these carbon reservoirs, which one most worries climatologists in terms of impact on global warming?

Based on these carbon reservoirs, why is increasing the number of plants or reforestation not a viable or only solution to the problem of global warming?

What is meant by the term nitrogen cycle?

Why is nitrogen so important?

Describe the processes of nitrogen fixation?

Describe the processes of nitrogen ammonification?

Describe the processes of nitrogen assimilation?

Describe the processes of nitrification?

Describe the processes of denitrification?