Global scheme of nitrogen cycle, showing major nitrogen reservoirs (atmosphere, soil and living organisms), major processes (nitrification, denitrification, nitrogen fixation, assimilation etc.) and actors (plants, animals, bacteria, human beings).
Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Italy,Kazakhstan,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia (FYR),Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,Russia,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom
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