Europe nitrogen cycle

Taylor, A.F.S., Martin, R, Read, D.J., 2000. Fungal diversity in ectomycorrhizal communities of Norway spruce (Picea abies [L.] Karst.) and beech (Fagus syl atica L.) along north-south transects in Europe. In Schulze, E.-D. (Ed.), Carbon and Nitrogen Cycling in Forest Ecosystems. Springer-Verlag, New York, pp. 343-365. 

Critical loads of sulfur and nitrogen on North Asian ecosystems The models for calculation of critical loads in North Asian ecosystems are shown in Box 3. In the ecosystems of the Asian part of Russia these values of critical loads for N, CL(N), and S, CL(S), compounds are shown to be less than in Europe due to many peculiarities of climate regime (long winter with accumulation of pollutants in snow cover) and depressed biogeochemical cycling of elements (see Chapter 7, Section 1). The minimum values of both CL(N) and CL(S) are < 50 eq/ha/yr. and the maximum ones are > 300 eq/ha/yr. (Figure 24 and Figure 25). 

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