Comparative assessment of representative natural boundaries ecosystem functions of the Bolshezemelskaya tundra southern cryolitozone

Results of studying and estimation of ecosystem functions of natural-territorial complexes (NTC) of natural boundaries of Bolshezemelskaya tundra southern cryiolitozone for revealing and ranging of their contribution to biospheric balance of the territory are presented. The proposed approach for the solution of this problem, meaning the equivalence of all estimated NTC ecosystem functions as the components of the integrated ecosystem service which size defines the importance and value of the landscape to maintain the biospheric balance in the region, is described.The results of singling out of representative (i.e. the most typical and abundant) kinds of natural boundaries of Bolshezemelskaya tundra southern cryolitozoneand revealing of their characteristics, most valuable for the estimation of the integrated ecosystem service are given. The comparative analysis of the naturalboundaries ecosystem importance on the basis of their basic ecosystem functions (climate regulation, regulation of atmosphere gas structure, hydrological func-tions of the territory, ability of soils to accumulation and instability of soils to anthropogenous influences, biodiversity) which allowed to relatively single outlandscapes with most obviously expressed environment-forming functions, was carried out. It is proposed to make definition of the last on the basis of calculation of the so-called coefficient of relative ecological importance (CREI).For randomly chosen licence subsoil area the example of mapping of the total integrated indicator of the natural boundaries ecosystem importance obtainedwith use of the calculated indicators of their ecosystem functions, is given. It is shown that such approach already at the pre-investment stage of industrial development of territories will allow to refuse from using the biospheric most significant sites.Necessity of development of territories of natural-ecological framework isproved so that the economic objectives were organically combined with the ecological ones. Thus the last should be considered as the priority ones. It is under-lined that in the conditions of the North this is possible at competent territorial planning at which the area of the broken territories does not exceed 10 % and, simultaneously, the biospheric most significant landscapes are preserved.