Earth’s Cryosphere, 2010, No. 2, p. 46-55

NATURE CONSERVATION ZONING IN NADUM RIVER BASIN (WEST SIBERIA)

O.E. Ponomareva

Earth Cryosphere Institute, SB RAS, 625000, Tyumen, P/O box 1230, Russia, o-ponomareva@yandex.ru

Since 1971 the long-term monitoring of exogenous geological processes has been carried out at Nadym stationary in the northern taiga of West Siberia. The observations of frost heave and thermokarst fulfilled on plots and profiles in natural and disturbed conditions have allowed estimating of the dynamics of their development. The re-decoding of aero and space images of different years has been used for revealing the areas occupied with bogs and for the assessment of bogging tendency. The analysis of the obtained information on the direction and intensity of process development gives a possibility to amend the map of nature conservation zoning of the geological medium of the West Siberian oil-and-gas complex on a scale 1: 1 000 000.

Key words: Long-term frost heave, thermokarst, bogging, nature conservation zoning.

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