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globalchange

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ammonia(4)
atmospheric reactive nitrogen(2)
biomass burning(2)
haze pollution(2)
high-temporal resolution(2)
long-term observation(2)
morning peak(2)
n deposition(2)
yearly variation(2)
climate change(1)
ecosystem modeling(1)
excreta deposition(1)
grasslands(1)
manure/fertilizer application(1)