The Effect of Long-Term Drainage and Exploration of Lowland Peatland on the Chemical Composition of Surface-Drainage and Groundwater

The results of the ecological assessment of drainage-discharge waters from the drained peat bog «Gadovskoe», used in agricultural and forest crops for more than 100 years, are presented. It has been established that the hydrochemical situation is most closely related to the hydrothermal regime, the nature and duration of stay of various peat mass objects in production. With an increase in the service life of peat and developed soils, the degree of mineralization of drains increases. The maximum losses of most biogenic elements with drainage waters occur in the late autumn period, the minimum – in the spring. In conditions of limited use of agrochemicals, the environmental impact on the surrounding aquatic environment from incoming swamp waters is negligible. Artesian waters under the developed peat deposit are characterized by higher rigidity compared to swamp drains.