Biologicai activity of soils in agrocenoses of the steppe zone in the Central Caucasus (Kabardin-Balkaria, the Terskiy variant of vertical zonation)

The peculiarities of soil biological activity in agrocenoses of the steppe zone in Kabardino-Balkaria including agrochemical properties, have been revealed. The studied arable soils are characterized by low parameters of humus, invertase activity and respiratory rate at the medium and high levels of catalase activity. Тhe comparative analysis with analogous soils of natural biocenoses has shown reliable reduction in humus contents and invertase activity. Сatalase activity varies in arable soils to a lesser extent.