Abstract
This study employed with the integration of remote sensing (RS) and geographical information system (GIS) techniques to delineate ground water potential zones for ground water management of Gangajalghati block, Bankura district, West Bengal and is located on the eastern slope of Chotanagpur plateau and area belongs to predominantly Precambrian gneissic terrain, and small area belongs to Gondwana deposits and quaternary sediments. The groundwater in this region is confined within the weathered residuum and fracture zones in pediment region. Survey of India topographical maps and satellite imageries along with other data and field observation data have been utilized to prepare various thematic layers viz. drainage, slope, lineament, geology, hydrogeomorphic units, land-use/land cover, soil, and depth to water level map of this hard rock terrain. All the thematic map that influence ground water occurrences have been analyzed and integrated through GIS analysis based on weights assignment. The weighted index overlay method has been followed to delineate ground water potential zones. The result revealed that the study area can be categorized into four different ground water potential zones viz., very good, good, moderate, and poor zones. The bore well yield data reveals that medium yielding wells (50–100 L per min) are in and around the moderate to high lineament density zone and buried pediment medium region. Afterward validation with well yield data revealed a good correlation with respect to the observed ground water potential zonation. This study is useful for better planning and management of ground water resources as well as providing quick prospective guides for ground water exploration in hard rock aquifer system.
Highlights
Ground water is a precious natural resource for the survival of human beings, as well as for the development aquatic and terrestrial ecosystems
The ranking has been given for each individual parameter of each thematic map, and weights were assigned according to the multi influencing factor (MIF) of that particular feature on the hydro-geological environment of the study area (Shaban et al 2006; Magesh et al 2012)
Delineating the ground water potential zones in Gangajalghati block of Bankura district, West Bengal using remote sensing and geographical information system (GIS) techniques enables quick decision-making for sustainable water resources management
Summary
Ground water is a precious natural resource for the survival of human beings, as well as for the development aquatic and terrestrial ecosystems. Water bearing formation (interconnected fractures, lineament, etc.) of the earth’s crust acts as conduits for transmission and as reservoirs for storing water. All over the India as well as some other countries ground water resource depleting day by day which is not replenished sufficiently. An assessment for the ground water resource is extremely significant for the sustainable management of ground water systems in water deficit region. India is an agriculturally developed country and about 60–70% of the total population depends on it. The increasing agricultural and industrial development led to over exploitation is an important factor for the declination of ground water resources of the country
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
