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acid deposition(13)
ph(4)
absorption(3)
sulfur(3)
carbon(2)
fluorescence(2)
forests(2)
ammonia(1)
aquaculture(1)
atmospheric chemistry(1)
calcium(1)
carbon dioxide(1)
chlorophyll(1)
coastal areas(1)
conductivity(1)
crown(1)
density(1)
electrical conductivity(1)
fertilizers(1)
nitrogen(1)
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