Influence of Orenburg gas condensate field development on ecological and biological condition of landscape-botanical complexes

The article presents the results of the study of the landscape-botanical complexes in the zone of influence of the Orenburg gas condensate field. The studies have found that the area objects in most cases are located on the territory of arable land, which occupy 60-90% of the terrain of the study area. Previously, natural vegetation was cut down and new trees and shrubs were planted. The studies have shown that during the reconstruction and construction works at industrial sites the soil was removed. During the work with the water wash the existing vegetation was subjected to species transformations, which led to the death of communities that can not withstand constant excessive moisture. Thus, the role of the floodplain as a natural filter under the condition of surface water pollution was violated. Water-washing works led to a change of the Ural river bed: the right bank became more steep, the river bed expanded, which affected the decrease in the flow rate, the process of silting of the river was outlined.