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Alaska
20
organic matter
20
populations
primary production
20
productivity
tundra
20
biomass
19
inorganic nutrients
18
disturbance
16
nitrogen
13
phosphorus
12
leaf area
4
carbon
3
annual variation
2
calcium
2
exclosure
2
fertilize treatments
2
magnesium
2
nutrients
2
potassium
2
species diversity
2
exclosures
1
heath
1
mosses
1
small mammal
1
wet sedge
1
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