 The main advantage of the usage of that nature reserve was in the long duration of its existence and making the long-term series of observations as recorded in the annals of nature (recording of climate data, biological processes, and human influence).The first was the absolutely protected areas of forest and steppe which were connected with territories strictly controlled haymaking or grazing.Here, the existing semi-natural ecosystems kept saved and the small arrays of oak forests with black soils were the most valuable territories.