Sustainable Sediment Management in Reservoirs: A Case Study of La Estancilla, Ecuador, Using Nature-Based Solutions and Emerging Technologies

Reservoir sedimentation presents a critical challenge to sustainability, impacting operational capacity and increasing maintenance costs. This study analyzes the impact of sediment accumulation in La Estancilla Reservoir, located in Manabí, Ecuador, and proposes sustainable strategies to mitigate its effects. Simulations using AutoCAD Civil 3D project a 45.06% loss of active capacity by 2024 and sediment accumulation exceeding 103% by 2042. The Carrizal River basin, which feeds the reservoir, exhibits physiographic characteristics that enhance sediment transport, exacerbated by land-use changes and intensive agricultural activities. Proposed solutions include reforestation with native species, sediment traps, and continuous monitoring with drones and LiDAR sensors. These strategies not only improve the operational sustainability of the reservoir but are also replicable in other regions facing similar challenges.