Spatial pattern of groundwater recharge in Jhansi district in the Bundelkhand region, central India
2021
Tiwari, Atul | Joshi, Suneel Kumar | Tripathi, Shashi Kant | Saxena, Rani
Increasing demand for water has put tremendous pressure on groundwater resources in the hard rock terrain, where groundwater is a major source of agriculture, domestic and industrial purposes. Here, in the present study, we have assessed groundwater abstraction and recharge using Groundwater Resources Estimation Committee-1997 (GEC-97) norms and Water Table Fluctuation approach for the Jhansi district in the Bundelkhand region, central India. The assessment of abstraction was about 50,943 hectare meters (ham), of which ~ 91% uses for agriculture and the remaining 9% for domestic and industrial practices. We have also assessed groundwater recharge based on all available sources such as canal, rainfall, irrigation return flow, surface water structures on an annual and seasonal scale. Our results suggest higher recharge of about 42% from irrigation return flow during non-monsoon season compared to monsoon season because of higher groundwater abstraction for irrigation purposes. The rainfall recharge was about 33% in the study area during the assessment year of 2016. In general, the assessed groundwater abstraction and recharge show marked spatial and seasonal variation across the study area. The assessment of groundwater resources during 2016 suggests a ‘safe’ category of groundwater development stage for Jhansi district. The high-spatial-resolution (block-wise) assessment suggests more than 60% groundwater development stage for two blocks in the Jhansi district required better groundwater management policy. The results obtained from the present study can be helpful for high-spatial-resolution groundwater resources management.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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