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Table 2 CASA mean annual NEP flux predictions over the period 2000 to 2010 by the MLRAs in Alaska, sorted by highest (positive: land sink) to lowest (negative: land source) total mean carbon flux

From: Alaska ecosystem carbon fluxes estimated from MODIS satellite data inputs from 2000 to 2010

Major Land Resource Area

Area

Mean

Standard deviation

Total (Mean × area)

 

km2

g C m-2 yr-1

g C m-2 yr-1

g C yr-1

Arctic Foothills

108,544

12.09

4.93

1.3E + 12

Interior Brooks range mountains

48,768

13.67

4.39

6.7E + 11

Western Brooks range mountains

59,648

10.59

5.50

6.3E + 11

Interior Alaska highlands

178,624

1.89

5.22

3.4E + 11

Northern Brooks range mountains

41,216

7.94

5.12

3.3E + 11

Nulato Hills-Southern Seward Peninsula highlands

46,400

6.76

7.67

3.1E + 11

Seward Peninsula highlands

34,368

8.26

7.20

2.8E + 11

Northern Seward Peninsula-Selawik lowlands

20,736

9.00

5.68

1.9E + 11

Upper Kobuk and Koyukuk hills and valleys

34,240

2.86

4.02

9.8E + 10

Arctic Coastal plain

58,496

1.27

4.08

7.4E + 10

Southern Alaska coastal mountains

67,392

0.33

1.97

2.2E + 10

Copper River Basin

11,840

0.36

1.69

4.3E + 09

Northern Bering Sea Islands

9,216

−0.72

2.53

−6.6E + 09

Yukon Flats lowlands

32,704

−0.49

2.61

−1.6E + 10

Southern Alaska Peninsula mountains

15,680

−1.26

2.59

−2.0E + 10

Interior Alaska mountains

114,496

−0.30

2.78

−3.5E + 10

Northern Alaska Peninsula mountains

14,400

−2.47

2.59

−3.6E + 10

Kodiak Archipelago

12,352

−3.10

3.68

−3.8E + 10

Aleutian Islands-Western Alaska Peninsula

25,024

−2.96

4.71

−7.4E + 10

Cook Inlet mountains

51,008

−1.98

3.80

−1.0E + 11

Alexander Archipelago-Gulf of Alaska Coast

66,944

−1.60

3.92

−1.1E + 11

Interior Alaska lowlands

93,696

−1.21

3.99

−1.1E + 11

Cook Inlet lowlands

27,328

−6.19

4.33

−1.7E + 11

Ahklun mountains

37,760

−5.27

2.59

−2.0E + 11

Yukon-Kuskokwin coastal plain

76,864

−2.68

2.78

−2.1E + 11

Bristol Bay-Northern Alaska Peninsula lowlands

50,176

−4.51

3.15

−2.3E + 11

Yukon-Kuskokwim highlands

155,072

−3.16

5.95

−4.9E + 11

State total

1,492,992

  

2.4E + 12

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Carbon Balance and Management

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