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nitrogen
phosphorus
53
inorganic nutrients
52
carbon
37
nutrients
34
alkalinity
32
dissolved organic carbon
32
tundra
29
pH
24
CH4
22
CO2
22
DIC
22
DOC
22
NH4
22
PC
22
PN
22
PP
22
TDN
22
TDP
22
conductivity
22
dissolved inorganic carbon
22
gas
22
particulates
22
temperature
22
Alaska
18
organic matter
18
biomass
17
populations
17
disturbance
16
primary production
16
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