Author(s): Prikash Meetei Ningombam; Romeji Ngangbam; Angrungkham Keishang; Rajeshree Khumanthem; Nishi Devi Laimayum And Sunita Devi Rajkumari
Linked Author(s): Ngangbam Romeji Singh
Keywords: RS and GIS lineament density geomorphology Lithology pairwise comparison matrix multi-criteria decision-making Springshed Potential Zone
Abstract: The study investigates the integration of hydrogeological characteristics of springsheds and groundwater aquifers using Analytic Hierarchy Process (AHP) and Fuzzy Logic (FL) methods. The goal is to identify possible Springshed recharge zones and improve sustainable water resource management, particularly in hilly terrain of Manipur. The study deploys an integrated framework of remote sensing, geographic Information System (GIS), and multi-criteria decision-making (MCDM) methodologies to combine diverse parameters such as topography, geology, soil properties, land use, and hydrometerological data. Hydrogeological factors which are strongly linked to the behaviour and formation of natural springs, structure the major linking criterion for springsheds and groundwater aquifers. The AHP method weights these factors according to their relative relevance, whereas the Fuzzy Logic approach refines these weights to account for uncertainties and variability in the identification of springshed locations and groundwater aquifers. The combination of these technologies produces a complete Springshed Potential Zone (SPZ) layer map that highlights locations with sound groundwater recharge potential in Chammu watershed, Ukhrul district, Manipur. The SPZ map layers were found to be very consistent when compared with the spring locations provided by State Level Nodal Agency (SLNA), Manipur. The SPZ prepared using AHP and FL could be further categorized as high, moderate, and low potential zones. High potential zones have highly conducive hydrogeological conditions, low environmental stressors, and sustainable socioeconomic livelihood, making these zones ideal for water resource conservation. Moderate potential zones require targeted management methods to reduce hazards and improve sustainability, while low potential zones may necessitate stricter controls or alternate water sources. The findings highlight the need of combining conventional hydrogeological methods with cutting-edge computational tools to improve subsurface water resource management. The project study envisaged in bridging the close correlation of hydrogeological response functions in ascribing springshed potential zones and groundwater aquifers which should provide a solid foundation for watershed policymakers and stakeholders to undertake effective groundwater recharge and engineer conservation practices, ultimately contributing to the sustainable promotion of water resources especially in the hill districts of Manipur.
Year: 2025