A GIS-Based Multi-Criteria Decision-Making Framework for Prioritizing New Mexico Water Conservation Practices

Keywords: Water Security, MCDM, GIS, New Mexico
Abstract Type: Poster Abstract

Abstract

New Mexico’s water resources are under increasing strain due to climate change, rising demand, and unsustainable water management practices. As one of the driest states in the U.S., New Mexico’s unique socio-economic and environmental conditions pose significant challenges in implementing effective water conservation strategies. Current conservation efforts often lack a cohesive framework to balance these varied factors to prioritize areas most vulnerable to water scarcity. This research addresses this gap by developing a GIS-based Multi-Criteria Decision-Making (MCDM) framework tailored to New Mexico's needs. Our objectives are threefold: (1) evaluate the suitability of frequently used MCDM methods in addressing water conservation needs within New Mexico, (2) analyze the effectiveness of integrating Geographic Information Systems (GIS) with MCDM techniques to identify priority areas, and (3) develop targeted, data-driven water conservation practices informed by these assessments. Drawing on successful applications in other dryland regions, this study examines MCDM methods like the Analytic Hierarchy Process (AHP) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) for their adaptability to New Mexico’s conditions. Results highlight the potential of GIS-integrated MCDM to provide an objective, spatially precise approach to water resource management, allowing policymakers to balance socioeconomic needs with environmental constraints. The study concludes with recommendations for New Mexico-specific water conservation strategies, creating a foundation for resilient and sustainable water management practices that adapt to the state’s evolving water scarcity challenges. This framework offers a valuable decision-support tool for guiding future water conservation initiatives across New Mexico.