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Alaska
19
biomass
organic matter
populations
19
primary production
19
productivity
tundra
inorganic nutrients
17
disturbance
15
nitrogen
13
phosphorus
12
carbon
3
leaf area
3
annual variation
2
calcium
2
exclosure
2
fertilize treatments
2
magnesium
2
nutrients
2
potassium
2
species diversity
2
heath
1
mosses
1
wet sedge
1
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