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globalchange

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carbon(7)
petroleum(6)
vegetation(6)
organic matter(5)
ph(5)
precipitation(5)
carbonate(4)
nitrogen(4)
organic carbon(4)
runoff(4)
biomass(3)
lakes(3)
sediments(3)
velocity(3)
aerosols(2)
atmosphere(2)
diagenesis(2)
emissions(2)
erosion(2)
fertilizers(2)
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