Selection of the set of areal units for economic regional research on the land use

in the case of research in economics, geological survey, mining,
earth resources and geography. In the literature one can diagnose an
important methodological and implementation gap concerning the
selection of the set of areal units within the Aggregation Problem.
The issue relates to determining boundaries of areal units (regions),
whose properties are described by spatial data. The boundaries of
areas should be established in such a way that a given analyzed
phenomenon is influenced by the same main causes. Only in this
case, the analyzed spatial data will properly reflect the impact of
main causes, the properties of phenomena and dependencies
between them. This means that determining the proper boundaries
of areas is a necessary condition for receiving correct conclusions
(e.g. delimiting metropolitan areas, assessing mineral resource
potential and deposits, or assessing the dynamics of surface
processes).
From this perspective, the main objective of the article is presenting
the proposal for solving the Aggregation Problem, where as the case
study the economic analysis of agrarian resources and structure is
used. The solution to the problem will lead to establishing the
system of macroregions, where the obtained proposal of a system of
four sets of areal units is important from the point of view of spatial
research. The main added value of the research and its specific
contribution to the literature is based on the fact that the proposed
solution to the Aggregation Problem can be considered as universal,
which is not limited to selected scientific disciplines. The
methodology presented in the article can be effectively applied to
other spatial research in the field of geology and mining, where the
most appropriate research field is the issue of locating areas with
appropriate properties or areas which are affected by given analised
phenomena.