P Sahu

Threat of land subsidence in and around Kolkata City and East Kolkata Wetlands – A paper in Journal of Earth System Science

The groundwater of the cities and wetland areas should be developed cautiously based on the groundwater potential to minimize the threat of land subsidence, the report says.

P K Sikdar

Posted on 18 Jul, 2011 07:33 PM

This paper in Journal of Earth System Science attempts to estimate the possible rate of land subsidence of Kolkata City including Salt Lake City and the adjoining East Kolkata Wetlands located at the lower part of the deltaic alluvial plain of South Bengal basin. Land subsidence is an environmental hazard which is caused by overdraft of groundwater or oil extraction and results in gradual settling or sudden sinking of the earth’s surface owing to subsurface movement of the materials of the earth.

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