Biogeochemical fluxes regionalization

Discuss the applicability of soil and ecosystems mapping for characterizing global and regional biogeochemical fluxes. 

We can compare these values with those characterizing the fluxes of trace metals in biogeochemical cycles. The biological productivity of the Polar Tundra ecosystem grown on the low terrace in the region of Barentsberg, Spitzbergen Island, is shown in Table 5. 

Anita A. N., et al. (2001) Basin-wide particulate carbon flux in the Atlantic Ocean regional export patterns and potential for atmospheric CO2 sequestration. Global Biogeochem. Cycles 15, 845-862. 

Lutz M., Dunbar R., and Caldeira K. Regional variability in the vertical flux of particulate organic carbon in the ocean interior. Global Biogeochem. Cycles (in press). 

Mason R. P. and Fitzgerald W. F. (1996) Sources, sinks and biogeochemical cycling of mercury in the ocean. In Global and Regional Mercury Cycles Sources, Fluxes and Mass Balances. NATO ASl Series 2. Environment (eds. W. Baeyens, R. Ebinghaus, and O. Vasiliev). Kluwer, Boston, vol. 21, pp. 249-272. 

Realistic fluxes of sulfur (or indeed any element) in the natural environment are difficult to obtain. The environment itself is inhomogeneous and the biochemical systems complex, and there are major problems associated with the extrapolation of point measurements of limited duration to a regional, long-term scale. Nevertheless, the recent studies in the field eire giving at least a semiquantitative picture of some of the biogeochemical reactions of sulfur which have important implications in the mineral formation and dissolution (see Chapters 6.2-6.4). 

Regional biogeochemical mass balance of nitrogen in the North Atlantic watershed The overall nitrogen fluxes within and between the terrestrial, groundwater and river systems of the North Atlantic watershed are summarized graphically in Figure 9. 

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