The groundwater resources of basaltic terrains in peninsular India are decreasing rapidly, due to indiscriminate extraction without considering the recharge capabilities of an aquifer. The main focus of the present study is to develop a good perceptive of the groundwater recharge capabilities in basaltic terrains for long term groundwater sustainability. In the present study 3D aquifer solid model of the sub-surface was integrated with surface variables like geomorphology, lineament density, drainage density, slope, land use along with lithology and soil, derived from earth observation (EO) data. This gives a robust platform to find the complex geology of the study area for facilitating artificial groundwater recharge. The methodology adopted provides an opportunity to integrate all the groundwater-related data for a better understanding of the groundwater and surface water interplay in terms of recharge phenomena. The research signified three categories of recharge zones ‘highly-suitable’; ‘moderately-suitable’; and ‘unsuitable’. The recharge zones are found to be in accord with the observed pre and post-monsoon groundwater table signifying the validity of the model. This study would be helpful to delineate groundwater recharge plan in similar geological provinces for ensuring the balance of groundwater resources.

中文翻译：

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基于综合地质水文学和地貌学的地下实体模拟人工地下水补给场地适宜性：Bhalki 微流域，卡纳塔克邦

由于不考虑含水层的补给能力，不加选择地开采，印度半岛玄武岩地形的地下水资源正在迅速减少。本研究的主要重点是发展对玄武岩地形地下水补给能力的良好感知，以实现地下水的长期可持续性。在本研究中，地下的 3D 含水层实体模型与地貌、线性密度、排水密度、坡度、土地利用以及来自地球观测 (EO) 数据的岩性和土壤等表面变量相结合。这提供了一个强大的平台来寻找研究区域的复杂地质，以促进人工地下水补给。所采用的方法提供了一个整合所有地下水相关数据的机会，以便更好地了解地下水和地表水在补给现象方面的相互作用。研究表明三类补给区“非常适合”；'中等适合'; 和“不合适”。发现补给带与观测到的季风前后地下水位一致，表明模型的有效性。该研究有助于划定相似地质省区的地下水补给计划，以保证地下水资源的平衡。发现补给带与观测到的季风前后地下水位一致，表明模型的有效性。本研究有助于划定类似地质省区的地下水补给计划，以保证地下水资源的平衡。发现补给带与观测到的季风前后地下水位一致，表明模型的有效性。本研究有助于划定类似地质省区的地下水补给计划，以保证地下水资源的平衡。