Physicochemical properties and potassium state of the soils developed on dump rocks of coal mines.

摘要

The main physicochemical parameters of soils formed on dumps composed of overburden rocks in a coalfield deposit have been compared with the properties of the zonal soils. For the first time, the potassium state of embryozems at different stages of development has been analyzed; the concentrations and profile distributions of different potassium compounds and the potential soil buffering capacity for potassium were studied. It was shown that the increase in the available potassium concentrations in the upper horizons of the embryozems was due to the higher intensity of the biological processes and the active weathering of the rocks transferred to the surface. The intensity of the biological accumulation of potassium was higher under the herbaceous cenoses than under the tree-shrub ones.Notes Translated from Pochvovedenie (2014) 1, 120-128 (Ru).