BIOGEOCHEMICAL STRUCTURE OF 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 corresponding values of active temperature coefficients ranged in accordance with the main climatic belts are shown in Table 2. 

The values of Cbr for each geographical area were ranged to determine the type of biogeochemical cycling and these ranks are shown in Table 3. Five types of biogeochemical cycling are divided very intensive, intensive, moderate, depressive and very depressive. 

Using the above-mentioned approaches, we may describe the peculiarities of biogeochemical structure for the main global ecosystems in various continents. Detailed 

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In aquatic ecosystems, it is necessary to consider the whole biogeochemical structure of these communities and a distinction can be made accounting for the diversity of food webs ... 

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