| Abstrakt: |
The experiment on multidimensional empirical and statistical modeling of the structure and function of boreal landscapes of the Pacific Ocean mega ecotone of Northern Eurasia has been carried out by the example of Priamurye sub-Pacific (the subtaiga ecoregion of the Lower Priamurye). The information and fuzzy set-theoretical models were used to determine the main features of mono- and polysystemic spatial organization of floristic and phytocoenotic formations of the sub-Pacific type under the conditions of low-mountain relief and boreal bioclimatic ecotone, with the aggravated monsoon-type interaction between the continent and the ocean. The information models of monosystemic organization of boreal landscapes were used to reveal the causal mechanisms of emergence of the known florogenetic richness and phytocoenotic diversity of forest cover, which is typical of the marginal continental land of the southern Far East. It has also been shown that the polysystem space of the Priamurye boreal ecotone has a high degree of intercomplex relationships. It was represented by mutual penetration of floras and phytocoenotic structures and resulted in the formation of buffer forest formations - a phenomenal event in the temperature belt of the Asian sub-Pacific marginal continental land. The mechanisms of appearance of buffer forest communities, including spruce/broad-leaved and nemoral fir/spruce forests of the Manchurian-Okhotsk phratrie, have been revealed. It has been shown that the forests of this phenomenal buffer flora differ from the forests of basic floras in the higher indices of structural and functional development and have reached the state most similar to the evolutionary climax. The earlier concepts of the Pacific Ocean mega ecotone of Northern Eurasia as a focus of evolutionary processes in the continental biosphere have been confirmed. The coupled analysis of polysystem models of microlandscapes showed certain disconformity between an integrated ("unipolar") spatially ordered system of structural phytocoenotic connections between microlandscapes, on the one hand, and a disintegrated "multipolar" functional (metabolic) space of phytobiota, on the other hand. In the territorial mosaic of this disconformity, the foci of modern forest-forming processes and the main directions of forthcoming functional and structural changes in the forest cover of Priamurye sub-Pacific have been outlined. [ABSTRACT FROM AUTHOR] |
