Department of Geography & GIS
Geo-Eye
Year: 2023, Volume: 12, Issue: 1, Pages: 20-27
Original Article
J Killivalavan1*, P Masilamani2
1Research Scholar, Department of Geography, Bharathidasan University, 620 024, Tiruchirappalli, 620 024, Tamil Nadu, India
2Assistant Professor, Department of Geography, Bharathidasan University, Tiruchirappalli, 620 024, Tamil Nadu, India
*Corresponding Author
Email: [email protected]
Received Date:13 March 2023, Accepted Date:18 June 2023
Groundwater is the major source of freshwater presence in the globe and supports human life on the earth and it is a critical resource for food security. In India since 1970s and now accounts for over 60 percent of the total area irrigated by groundwater in the country. Around 85% of the rural drinking water supply is also met from groundwater sources. Assessing the suitability of groundwater quality for irrigation is more important in increasing the yield of agricultural crops in an area. The Cheyyar watershed in Tamil Nadu has been selected as the study area to carry out the study since the study area has vast extension of agricultural land. The quality of groundwater in the study area has decreasing trend with respect to time. The total geographical area of the study area is around 2,060 sq.km. To carry out this study, data related to groundwater quality was collected from State Ground and Surface Water Resources Data Center, Tharamani, Chennai, Tamil Nadu for last 20 years (2000 – 2019) and nine parameters were selected to examine the irrigation suitability such as Magnesium Ratio, Sodium Adsorption Ratio, Residual Sodium Carbonate, Total Hardness, Soluble Sodium Percentage, Permeability Index, Total Dissolved Solids, Electrical Conductivity and USSL classifications. The weighted overly analysis has been used to derive the overall quality of groundwater for irrigation.
Keywords: Groundwater quality, Irrigation Suitability, Cheyyar watershed, USSL classifications
© 2023 Killivalavan & Masilamani. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Published By Bangalore University, Bengaluru, Karnataka
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