Soil-Biogeochemical Conditions in the Worlds Terrestrial Ecosystems

CHARACTERIZATION OF SOIL-BIOGEOCHEMICAL CONDITIONS IN THE WORLD S TERRESTRIAL ECOSYSTEMS 

The biogeochemical cycling in different ecosystems is to a large extent determined by biota, especially by the primary production of plants and by microbial decomposition. At present we recognize the development of the intensive biogeochemical investigations of a large number of ecosystems in North America, Europe, Asia and South America. 

The application of these coefficients for the characterization of soil-biogeochemical conditions in various ecosystems is based on the following hypothesis  

The values of Cb for each geographical region were ranged to determine the type of biogeochemical cycling and these ranks are shown in Table 2. Five types of biogeochemical cycling are identified very intensive, intensive, moderate, depressive and very depressive. 

The corresponding values of active temperature coefficients ranged in accordance with the main climatic belts are shown in Table 3. 

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