and from different surfaces of runoff. The runoff
particles dispersion takes place over the areals
which are mostly delayed by geochemical obstacles and
this leads to extra-accumulation of harmful
substances in the conditions of closed depressions.
There the principal significance has the ratio
of lithological and morphological geosystem elements
which create special conditions for forming biotic
properties. Also exogenous factor plays an important
role which is understood as mostly surf iciai
displacement of denudation material. In such
conditions an intensivity of the process is determined
by the activity of the tectonic movements and
climatic data.
Also the vegetation factor is very important as
it is. I would like to focus here your attention
taking into account first of all the relation of
vegetation and other habitat factors. That the like
an axiom to say that the différencies in vegetation
are determined by the environment conditions
différencies. But that correlation can not be
violated by current modifications of environment and
vegetation as in past as well as at present.
Historical factors and anthropogenic processes begin
to play here the decisive role.
In the process of realization of ecological
anaIyses the vegetation societies are characterized
by their composition, types availability, their vital
state, forms of growth and spatial distribution.
The vegetation as an object of direct image on
the space photos
is studied mostly completely and multifacetica1ly,
This first of ail aiows to determine the real picture
of modern state of vegetation by a number of
parameters: formational composition, structure and
dynamics of its separate elements. Secondly a number
of indicative features and vegetation specifications
are investigated simultaneously for the study-
environment components difficult for
observation which reflect its functional connections
through substrate properties,water content conditions,
drainage state, etc.
The complication of such complex analyses is
methodologically determined by the complication of
the levels of ecosystems functioning in the
conditions of concrete situations. For think, I think,
there is a need to separate the system to several
interconnected structural levels which will provide
for its integrity. Also the separation can be in other
form, for example, by trophical levels of ecosystem.
But everytime in such cases you should look for the
factors which provide its integrity in the concrete
landscape structure development conditions.
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