Towards Sustainable Development: Ranking of Soil Erosion-Prone Areas Using Morphometric Analysis and Multi-Criteria Decision-Making Techniques

Sustainability, Journal Year: 2025, Volume and Issue: 17(5), P. 2124 - 2124

Published: March 1, 2025

Sub-watershed prioritization using morphometric analysis and multi-criteria decision-making (MCDM) techniques is a systematic approach to identifying ranking sub-watersheds based on their susceptibility soil erosion. This helps in implementing targeted conservation measures. In this study, the Narangi basin are prioritized by employing integrated with advanced MCDM techniques, including additive ratio assessment (ARAS), complicated proportional (COPRAS), multi-objective optimization (MOORA), technique for order preference similarity ideal solution (TOPSIS). Weights various methods determined criteria importance through an inter-criteria correlation (CRITIC: method), while geospatial ensure precise spatial analysis. The results provide unified of sub-watersheds, revealing that sub-watershed 3 (SW3) SW9 high-priority erosion category; SW1, SW2, SW5, SW8 medium-priority; SW4, SW6, SW7, SW10 low-priority. comprehensive sustainability-oriented equips decision-makers robust tools identify manage at risk erosion, ensuring long-term sustainability land water resources. study aligns sustainable development goal 15 (life land) promotes use practices combat degradation.

Language: Английский

Integrating AHP and GIS for Sustainable Surface Water Planning: Identifying Vulnerability to Agricultural Diffuse Pollution in the Guachal River Watershed

Sustainability, Journal Year: 2025, Volume and Issue: 17(9), P. 4130 - 4130

Published: May 2, 2025

Diffuse agricultural pollution is a leading contributor to surface water degradation, particularly in regions undergoing rapid land use change and intensification. In many developing countries, conventional assessment approaches fall short of capturing the spatial complexity cumulative nature multiple environmental drivers that influence vulnerability. This study addresses this gap by introducing Integral Index Vulnerability Contamination (IIVDC), spatially explicit, multi-criteria framework combines Analytical Hierarchy Process (AHP) with Geographic Information Systems (GIS). The IIVDC integrates six key indicators—slope, soil erodibility, use, runoff potential, hydrological connectivity, observed quality—weighted through expert elicitation mapped at high resolution. methodology was applied Guachal River watershed Valle del Cauca, Colombia, where pressures are pronounced. Results indicate 33.0% exhibits vulnerability 4.3% very vulnerability, critical zones aligned steep slopes, limited vegetation cover, strong connectivity cultivated areas. By accounting for both biophysical attributes pollutant transport pathways, offers replicable tool prioritizing management interventions. Beyond its technical application, contributes sustainability enabling evidence-based decision-making resource protection planning. It supports integrated, targeted actions can reduce long-term contamination risks, guide sustainable practices, improve institutional capacity governance. approach suited contexts data but planning essential. Future refinement should consider dynamic quality monitoring validation across contrasting hydro-climatic enhance transferability.

Language: Английский