Ahmedabad: Amdavadis pumps so much water from the ground so that the parts of the city sink.
A recent study by the Institute of Seismological Research has found a strong correlation between the decline of the soil (sinking) and thinning groundwater.
Areas around Bopal-Ghuma in the West and the Vatva industrial area in the east sink 25 mm per year.
“Bopal water wells, Arbudanagar, Hazipur Garden and Ghuma showed a subsidence of around 2.0 mm / year.
The age of 9.8 mm / year large soil is also estimated in sola well, followed by the level of subsidence of 8.2 mm / year in Shilaj, “The study was published in the International Journal of Geocarto, a famous scientific journal published by Taylor & Francis.
Experts say the decline of land is the cause of concern because it leads to micro-level topographic changes, cracks and gaps on the surface and ultimately cause severe damage to city infrastructure such as new underground civil lines placed on the surface and even the concrete structure on the surface.
“The southeastern part of the city and neighboring rural areas experienced a high level of subsidence.
West and eastern part of the city each revealed moderate and low addition,” claiming research by researcher ISR Rakesh Dumka, Sandip Prajapati and D Suribabu.
“The removal of spontaneous water causes a vertical compression of aquifer sediment by reducing the pressure of the pores and land compaction which results in the decline of soil.
The land sinks promote micro-level topographic changes, cracks and gaps on the surface, ultimately cause large damage to city infrastructure,” said Dumka.
“Vatva well indicates a subsidence of 8.1 mm / year.
Significant sinks to a level of 3.0 mm / year are also estimated in the central part of the city,” said research.
Scientists rely on groundwater surface data from the central ground water council between 1996 and 2020.
They struggled to use satellite sentinical synthetic aperture radar data between 2017 and 2020, which measured land deformation with the accuracy of the sub-centimeter level, and the latest global technique of precision Satellite system based to measure land subsidence.
Scientists have appealed greater public participation to capture this phenomenon, including the implementation of groundwater refills in the city planning scheme and its insistence in city governance.