Modelo comunitario de gestión del riesgo y siembra de agua en Quebrada Honda, Silvania (Cundinamarca)

Abstract

The Quebrada Honda village in Silvania (Cundinamarca) faces a socio-environmental crisis due to an increase in mass movements and institutional omission, a situation exacerbated by climate change, the lack of risk management plans, and a 2025 court ruling (tutela) demanding mitigation actions. This study aims to design a community-based risk management and water seeding model, based on bioengineering and ancestral knowledge, to reduce territorial vulnerability for the 2025-2030 period. The methodology employed a mixed approach: spatial analysis using GIS, morphometric and hydrogeological characterization, participatory social cartography, and semi-structured interviews with critical households (n=24). Results showed that the loss of reference riparian ecosystems, subsurface water saturation, and the presence of active geological faults act as triggering variables for landslides, revealing a new Critical Risk Zone (6.13 %) not recorded in official cartography. Based on the altitudinal median (2100 m a. s. l.), a functional zoning was proposed: high zones for water seeding (amunas, cochas) and low zones for containment using bioengineering and dry stone walls, validating local ancestral techniques. The core outcome is the "Guardianes del Territorio Vivo" governance model, which articulates the community, the State, and academia, overcoming local demographic limitations through strategic alliances and legal enforceability. It is concluded that nature-based solutions, combined with social organization and legal backing, represent a technically, economically, and culturally pertinent alternative for resilience in rural Andean territories.