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Anatoly Pozdnyakov - Central Peat Bog Research Station, Dmitrov, Moscow Area, Russia. pozd@peat.soils.msu.su

Municipal activities continuously change soil physical properties and hydrology. In addition, direct sampling to monitor these changes is difficult or even impossible in urban areas. Geophysical methods of stationary and non-stationary electrical fields provide a means to monitor the changes in hydrological conditions and to investigate subsurface properties without any disturbance. Methods of self-potential, electrical profiling, vertical electrical sounding, and non-contacting electromagnetic profiling were applied to urban soils in Kiev, Ukraine, and Astrakhan’, Russia. Groundwater fluctuations in the areas were measured in details using the methods. The obtained information was incorporated in engineering projects; therefore, the costs of site maintenance were dramatically reduced. The methods ensure quick yet non-destructive estimation of soil and hydrological conditions in cities assisting with successful restoration and preservation of urban soils and municipal constructions.

Keywords: geophysics, electrical and electromagnetic surveys, soil physical properties, urban soil hydrology

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