Abstract

Groundwater resources are depleting at an alarming rate all over the world. Therefore, ensuring water security is the foremost priority of every nation. This paper presents a simple methodology to estimate groundwater recharge from rural ponds and to study the impact of climate change and urbanization on the recharge potential. It was found that built-up in the study area has increased by 51% since 2002 as a consequent of which, the total area occupied by ponds has decreased by 11%. This has resulted in a decrease in the recharge volume from these ponds by 14.74%. Thus, there is an urgent need to rejuvenate and maintain natural ponds and lakes, which is much more economical than constructing artificial percolation tanks and injection wells as discussed in the report. This study will also help various Government initiatives of rejuvenation of natural ponds and lakes in identifying those ponds which need to be revived based on their size, amount of surface runoff stored by the ponds and the volume of groundwater recharge through seepage from the bed of ponds.

中文翻译：

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利用遥感和GIS技术估算农村池塘和湖泊地下水补给潜力的简单方法：印度Roorkee Tehsil的时空案例研究

摘要

全世界的地下水资源正在以惊人的速度消耗。因此，确保水的安全是每个国家的头等大事。本文提出了一种简单的方法来估算农村池塘的地下水补给量，并研究气候变化和城市化对补给潜力的影响。研究发现，自2002年以来，研究区的建筑面积增加了51％，因此，池塘所占的总面积减少了11％。这导致这些池塘的补给量减少了14.74％。因此，迫切需要振兴和维护天然池塘和湖泊，这比建造人工渗滤池和注入井要经济得多，如报告中所述。