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- carbon dioxide 1
- denitrification 3
- ecology 1
- ecosystem ecology 1
- herbivory 1
- ionic liquids 1
- methane 1
- nitrification 3
- nitrogen 1
- nitrogen cycle 1
- nitrogen fixation 1
- nitrous oxide 1
- reaeration 1
- sediments 1
- sorption 1
- stream ecosystem 1
- streams 1
- zebra mussels 1