PACIFIC OCEAN MEGA-ECOTONE OF NORTHERN EURASIA AS EVOLUTIONARY MODEL OF CONTINENTAL BIOSPHERE ....

The difficulties of studying the organisation of geo (eco) systems of insular and marginal-continental land in various morphotectonic and macroclimatic sectors of the Pacific ocean mega-ecotone of Northern Eurasia are presented. Oro-climatic interactions along the mega-ecological ecotone's and phytocoenotic consequences are discussed. The theory of evolutionary landscape studies is regarded as a new trend in complex physical geography, with the processes and events of landscape formation in the tectonically and climatically active ocean-continent interface as its subject.

The structure and function of floristic and phytocoenotic formations, which characterise the boreal ecotone of the Priamurye sub-Pacific, have been studied using empirical-statistical modelling. The emergence mechanisms of buffer forest communities from two phratries (Manchurian-Okhotian and Manchurian-Angaridian) were discovered. The Manchurian-Okhotian phratrie's buffer spruce-broadleaf and nemoral fir-spruce woods were discovered to be an evolutionary phenomena of the boreal sub-Pacific. The Pacific Ocean mega-ecotone of Northern Eurasia was proven as a focus of evolutionary processes in the continental biosphere, as previously hypothesised.

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