Information-Modeling Technology for the Environmental Monitoring - New Ecoinformatics Tools in Environmental Science: Applications and Decision-making - page 84

Fig. 1.43 Reservoirs and fl fluxes of global sulfur cycle ( http://www.meas.ncsu.edu/airquality )

models have been developed for autonomous functioning and usage, which makes
is dif

cult to include them into the global model without substantial changes in their
parametric space. The model of the global sulfur cycle proposed here has been
derived in the form of a unit with inputs and outputs, which enables one to match it
with other units of the global model via their inputs and outputs.
In contrast to hydrogen, sulfur compounds cannot be attributed to long-lived
elements of the biosphere. For example, the living time of sulfur oxide in the
atmosphere does not exceed 15 days. Therefore in the unit of sulfur the spatial
digitization of its natural and anthropogenic reservoirs should be planned to re ect

the local distributions of sulfur in the vicinity of its sources and to enable us to
estimate the intensities of the inter-regional

fl

fluxes of sulfur compounds.
Analysis of schemes of global sulfur cycle represented in Figs. 1.41 and 1.42
shows that the quantitative estimate of different natural processes involved in the
global sulfur cycle appears much more complicated. It is evidently there is rela-
tionship between general biological processes of the sulfur cycle and some reac-
tions of the carbon cycle. Existing data about these relationships and other
parameters of global sulfur cycle give a possibility to form principal scheme of the
MGBS unit of the BCSS global model (Fig. 1.44 ).

fl

1.6.6 Conceptual Schemes of Global Phosphorus Cycle

The phosphorus cycle is one of the slowest biogeochemical cycles that describe the
movement of phosphorus through the lithosphere, hydrosphere, and biosphere.
Unlike other biogeochemical cycles, the atmosphere does not play a signi

cant role