Features Of The Carbon Cycle In Alaskan Tundra Flashcards

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1
Q

How much carbon does the permafrost contain and how does it compare to above ground biomass?

A

1600 GT

The amount of carbon below ground is 5 times grater than above ground biomass

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2
Q

NPP

A

Less than 200 grams/m^2/yr.

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3
Q

What does the growing season do for the soil and the atmosphere?

A

Inputs carbon rich litter into the soil.

The activity of organisms increases which puts more CO2 into the air

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4
Q

Are greenhouse gases released in winter?

A

Yes. CO2 and CH4 is released through pockets of unfrozen soil and water

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5
Q

Is the permafrost a carbon sink or carbon source?

A

Both due to global warming

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