Chair of physical geography and landscape ecology, geographical faculty Article reveals on an example of farms in Aleksandrovo-Gajski and Novouzenski areas of the Saratov region how active anthropogenic intervention in natural structure and functioning of ecological systems in arid agricultural territories leads to considerable disbalance in ecosystems. Authors show that the dominating position on power of the negative influence on environment is occupied by industrial-economic system presented first of all agrarian subsystem based on renewable resources.