The article presents results of firths’ ecological and meliorative conditions monitoring, level of vegetation cover degradation and dynamics of fodder land use within Aleksandrov Gay municipal district of Saratov region for the period from 1952. As the result of the research were detected 3 periods of meliorative development and impact on the state of land. The authors propose to improve the ecological and meliorative condition of agro-landscapes by reconstructing firths, reducing the size of longlines and reducing flooding rates.