describe about current status of underground water in india
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Groundwater Scenario in India, January 2014
This report by Central Ground Water Board (CGWB) has the latest information and statistics backed by data collected four times a year from 14,391 observation wells across the country. State-wise statistics of groundwater levels in comparison with various parameters such as water level in previous years, decadal average and pre-monsoons groundwater levels give a comprehensive view of the existing scenario.
Objective: The primary objective of establishing the ground water monitoring network stations is to record the response of groundwater regime to the natural and anthropogenic stresses of recharge and discharge parameters.
Rainfall pattern: Even though the season rainfall over the country as whole was more than the long term LPA, 3 subdivisions from the extreme northeast received deficient rainfall. There was noticeable disparity in the spatial distribution of the rainfall with below normal or deficient rainfall over east and northeast India and above normal or excess rainfall over most of the other regions.
Ground Water Level Scenario in India: Compared to January 2013, 66% of analysed wells show a rise and 31% a fall in water level, of 0-2 m in most cases. In general, there is rise in the water level in almost the entire country. The decadal water level fluctuation shows that the maximum fall is observed in Punjab, Rajasthan and Tamil Nadu.
State-wise scenario of ground water level: A comparison with previous year and premonsoon period water level as well as change with respect to decadal average has been discussed for all states.
