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globalchange

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x-ray(27)
carbon(3)
ions(3)
minerals(3)
oxygen(3)
ph(3)
ammonia(2)
biomass(2)
conductivity(2)
fluorescence(2)
iron(2)
metals(2)
sediments(2)
surface water(2)
absorption(1)
advection(1)
atmospheric chemistry(1)
atmospheric pressure(1)
carbon dioxide(1)
cation exchange capacity(1)
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