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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The Indo-Gangetic plains comprise of large floodplains of the Indus and Ganges-Brahmaputra river systems. They are home to approximately 1 billion people and encompass northern and eastern India, much of Bangladesh, parts of southern Nepal and the most populous parts of Pakistan. Ground Water remains the lifeline of socioeconomic development in the Ganga Alluvial Plain (GAP) since the down of civilization in the Indian subcontinent. Assessment of groundwater resources yields knowledge necessary for their informed management and governance. Keeping the importance of the above points a study was conducted for assessment of ground water resources in Nalanda district of south Bihar. The aim for the assessment of groundwater in Aurangabad district was to compute a complete evaluation of groundwater resources and produce information that can be incorporated for future requirement. The study was undertaken based on the recommendation of groundwater estimation committee, 1997 (GEC-97). Methodology used the estimation of annual groundwater recharge from rainfall and other sources, including irrigation, water bodies and artificial recharge, determination of present status of groundwater utilization and categorization of assessment units based on the level of groundwater utilization and long-term water level trend. Water level fluctuation techniques and empirical norms were used for recharge estimation. The data collected for investigation were water table fluctuation data, rainfall data cropping pattern, number of groundwater structures, hydrogeology of area, specific yield, groundwater draft, pond area etc. The total annual ground water recharge is 89882 ha-m for Aurangabad district. The existing ground water draft for irrigation is 15191 ha-m for Aurnagabad district. The ground water draft for all uses is 18703 ha-m for Aurangabad district. The net annual replenishable ground water resource is worked out to be 73054 ha-m for Aurangabad district. The net annual ground water available for future irrigation development is 56562 ha-m for Aurangabad district. The stage of ground water development is 23.1% for Aurangabad district. According to definitions used by CGWB Aurangabad district falls in safe category. The study recommended that there is a good scope for future groundwater development and conjunctive use of canal irrigation and ground water needs to be promoted.