Ivan Kruhlov.

BASE GEOECOSYSTEM (B-GES) AS INTEGRATING OBJECT OF TRANSDISCIPLINARY GEOECOLOGY.

Ukrainian geoecology, also named as landscape ecology and landscape science, is facing challenges dealing with the integration into the international scientific framework and with the ability to contribute to the applied studies on ecosystem management, ecosystem services, and the economy of ecosystems and biodiversity. Although research techniques are crucial, a sound conceptual platform and adequate terminology, which can be efficiently used in a multi-lingual environment, are also very important for the transdisciplinary science. The real object of geoecology is a landscape as a portion of land, large enough to be mapped, embracing different physical, biotic, and social phenomena in their totality. A geoecosystem (GES) is a theoretical object of geoecology. It is a geospatial model of a real landscape, which represents relationships between one of the landscape properties, as the central (controlled) component, and some other properties as peripheral (controlling) components. The totality of landscape phenomena in their spatial differentiation can be comprehensively represented by the set complementary disciplinary GES (geomorphic, hydroclimatic, biotic, administrative, etc.). A base geoecosystem (B-GES) is a general ecological and geographic model representing the most substantial properties of a landscape in their genetic relationships, and it serves as a common integrating basis for the special complementary GES. The controlled group of ecological components is represented by the land cover as a combination of biotic and cultural (societal) phenomena, including biotic communities, soils, artefacts, and human population, as well as by abiotic phenomena, such as microrelief, superficial geomorphic processes, microcliamte, water balance, etc. The land cover is controlled by the natural components, among which mega-/macro-/meso-relief has the principal role, and the external factors, which include societal framework conditions. The B-GES spatial structure is represented by the mosaic of ecological land cover classes, which can be delineated using remotely sensed spectral/texture data as well as topographic data. The hierarchy of B-GES spatial units is based on the hierarchy of landforms and embraces sub-local, local, regional, sub-global, and global scales.

Key words: econ, ecotope, ecochore, ecoregion, ecosphere, geoecosystem, land cover.

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