Biological characteristics of different age post-agrogene chernozems in Rostov oblast

Changes of flora, biological characteristics of chernozems ordinary in different age deposits in natural succession are studied. Stages of successions on different age deposits are allocated. For 83 years there is a reduction of soil density, change in soils рН from alkaline reaction of the environment on the arable land to alkalescent reaction in 83rd yare deposit, increase in humus maintenance by 3,6 times, activity of invertase by 2,3 times, activity of dehydrogenase by 1,4 times, activity of peroxidase and polyphenoloxidase on the contrary decreases.