Abstract
The models of pollutants’ distribution in the wetland waters of Western Siberia (Tomsk Oblast, Russia) have been considered. The models’ application allows describing the observed changes in the chemical composition of active layer of wetland waters with satisfactory accuracy. With these models, the most significant impact of sewage discharge on the local wetland water composition is observed in wetland edge area of up to 150–300 m in width. Even in this area it is possible to minimize the impact of sewage discharge on the wetlands provided the concentration in sewage water is 1.14-1.3 time more than the background concentration.
Highlights
The lowlands of the Ob River basin are characterized by high bogginess, which is 30 % from catchment area of the river or even more in some regions
At present, further wetland formation is in progress, in the subzones of the south and middle Taiga, where a number of authors pointed out the mean rate of vertical growth in the peat deposit thickness of 0.39–0.80 mm/year at maximum to 2.62 mm/year, whereas the wetland area increases by about 100 km2/year [1, 2]
In this area a major portion of the Russian Federation’s oil and gas production is located [4]. It necessitates the adaptation of regional economic activity to the high bogginess, and, conditions the relevance of the research in the wetland ecosystem of Siberia, the key properties of which are connected with the excessive humidity
Summary
The lowlands of the Ob River basin are characterized by high bogginess, which is 30 % from catchment area of the river or even more in some regions. At present, further wetland formation is in progress, in the subzones of the south and middle Taiga (the Ob River’s middle course), where a number of authors pointed out the mean rate of vertical growth in the peat deposit thickness of 0.39–0.80 mm/year at maximum to 2.62 mm/year, whereas the wetland area increases by about 100 km2/year [1, 2]. In this area a major portion of the Russian Federation’s oil and gas production is located [4]. The research performed with participation of workers of Tomsk Polytechnic University (the Russian Federation, Tomsk) within 1997–2014 was taken as the initial data [3, 4]
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