Some notes about changes of soil acidity in underflooded soils of Kama reservoir banks

The research focused on some changes in soil acidity, affected by underflooding in coastal zone of Kama Reservoir. Different soils were examined: light, heavy and binomial. Soil acidity decreased in light and binomial soils (in comparison with their unaffected counterparts), and these changes revealed themselves less distinctly in the deeper part of soil profile. The surface area, within the boundaries of which this phenomenon could be probably observed, is calculated.