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nitrogen(2)
vegetation(2)
acid deposition(1)
calcium(1)
carbon(1)
carbon dioxide(1)
chlorophyll(1)
crown(1)
emissions(1)
forests(1)
geochemistry(1)
humidity(1)
invasive species(1)
minerals(1)
mortality(1)
organic carbon(1)
ph(1)
soil chemistry(1)
soil ph(1)
soil respiration(1)
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