Artic Tundra Case Study Flashcards
1
Q
What is the size of the Tundra?
A
8 million km squared
2
Q
How many months do temperature remain under 0 degrees?
A
8-9 months
3
Q
What is the average annual precipatation?
A
50-350mm
4
Q
How much carbon does the permafrost contain?
A
1600GT
5
Q
What is the average tonnes of biomass per hectare?
A
4 to 29
6
Q
What is the average NNP?
A
200g/m2/year
7
Q
What percentage of oil and gas supply for the US did North Alaska account for in 1990?
A
25 percent
8
Q
How many tonnes of carbon is released from the melting permafrost a year?
A
7-40 million tonnes
