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Title
Proceedings of the Symposium on Progress in Data Processing and Analysis

195
forming the migratory currents connected with
anthropogenic pollution and redistribution of the
surficiai exhaust.All these data must be closely
correlated with the information from hydrological
control stations and other sources of ground observation.
That is why the important significance should be
given to the structure of elementary geochemical
landscapes which does not only reflects the ways of
migration currents but also shows the places of their
functional concentration and localization of the
ecological situations limits over the territory. The
following must be analyzed: hydrological areas and
zones ox harmful substances accumulation, also the
areas and zones of their transportation, geochemical
obstacles on the ways of migratory currents in the
places of gravitational catching areas and terrain
depressions(fogs , valleys and lakes bottoms).
!hererore the mechanism of migratory currents of the
underground and surface runoff, their interaction
specifications in the geosystem structure must be
specifically taken into the account. For example, an
expremeiy diversified structure of genetic relief
forms originated in the development conditions of the
glaciar landscapes of the Europe and this determined
composition, character and the availability of
biospheric catching areas with ecologically
protection features in them.
The same picture can be seen in the river-
valleys, in the areas of decline deposits development
in combination with the field of alii vial formations
development. Here arise and form the favourable
conditions for water runoff and filtration of
migratory particles in liquid and solid phases. In
these conditions the depositation and deposits
filtration areas with redistribution of the particles
of organic substance and mineral solutions arise. A
great importance for forming the conditions of
subsequent stages of development of ecological
situations has position in terrain and the character
of content of fitting rocks. These features really
are the main directional physical factors of the
biota development and water condictuing features of
the geosystem.
In this connection it should be specially noted
a description of the conditions for forming
ecological situations in the depressions of relief.
In the whole they are characterized by a specific
migratory regime of substances which form geochemical
background and special conditions of in— sight
interactions of horisontal and vertical connections.
This leads to accumulation of organic and mineral
particles, their redistribution and sometimes to the
transformation of the previous conditions. Towards
here decrease migratory currents at a different speed