The State of Kerala receives an average annual rainfall of about 3000 mm and has forty-four rivers in addition to many surface water bodies. Though the overall groundwater resource situation in the State is not causing any serious concern at present, there are areas where water scarcity is being felt, especially during summer months, due to a combination of topographic, geologic, hydrogeological and anthropogenic factors. The monsoon recharge in phreatic aquifers is low due to the limited thickness of aquifers which is about 7 m on an average and water level fluctuation of less than 4m in 80% of the area. Because of this low storage space, the stored water gets exhausted or greatly reduced whenever there is a delay in the onset of monsoon. The State experiences hydrological drought frequently as a consequence of this feature. Moreover, in the midlands and high lands, characterized by undulating topography and high gradients, the base flow is relatively high. The study pertains to an evaluation of the scope of groundwater conservation in various aquifer systems and the efficacy of groundwater conservation practices and policies in the State given the above issues.
Scope of Groundwater Conservation in Kerala: Case Studies and Policy
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The State of Kerala receives an average annual rainfall of about 3000 mm and has forty-four rivers in addition to many surface water bodies. Though the overall groundwater resource situation in the State is not causing any serious concern at present, there are areas where water scarcity is being felt, especially during summer months, due to a combination of topographic, geologic, hydrogeological and anthropogenic factors. The monsoon recharge in phreatic aquifers is low due to the limited thickness of aquifers which is about 7 m on an average and water level fluctuation of less than 4m in 80% of the area. Because of this low storage space, the stored water gets exhausted or greatly reduced whenever there is a delay in the onset of monsoon. The State experiences hydrological drought frequently as a consequence of this feature. Moreover, in the midlands and high lands, characterized by undulating topography and high gradients, the base flow is relatively high. The study pertains to an evaluation of the scope of groundwater conservation in various aquifer systems and the efficacy of groundwater conservation practices and policies in the State given the above issues.
Publication Mode |
Online |
---|---|
Publication Author |
A. Subburaj, N. Vinayachandran, V. R. Rani, Santhanasubramani |
Publication Language |
English |
Publication Type |
Conference Paper |
Publication Year |
2021 |
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