Manejo sostenible de inundaciones, cuencas y riberas en la provincia de Manabí

  • Andy Miguel Giler-Ormaza Carrera de Ingeniería Hidráulica, Pontificia Universidad Católica del Ecuador (PUCE).
  • Sergio Paul Donoso lucas Pontificia Universidad Católica del Ecuador (PUCE).
  • Roberth Patricio Arteaga Zambrano Pontificia Universidad Católica del Ecuador, Chone
  • David Alejandro Zaldumbide Perlalvo Pontificia Universidad Católica del Ecuador, Portoviejo

Resumen

Sustainable management of floods, catchments and river banks in Manabí province


En Manabí las autoridades locales y nacionales han elaborado e implementando planes de gestión  de inundaciones; sin embargo, las inundaciones aún causan grandes daños frecuentemente. El objetivo de la presente investigación es explorar técnicas que se podrían aplicar en Manabí para un manejo sostenible de inundaciones (SFM). Dos objetivos específicos son: explorar los enfoques y técnicas para i) SFM basado en manejo de cuencas hidrográficas, y ii) SFM basado en manejo de ríos y riberas. Se realiza un análisis desde un punto de vista técnico, económico, social y ambiental. La revisión y el análisis revelan que, en cuanto a manejo de inundaciones basado en manejo la cuenca, existen proyectos y planes hidráulicos que han sido efectivos en cierta medida. Específicamente represas, muros para retención de escorrentía y encauzamiento de quebradas. Sin embargo, se ha venido dando un manejo inadecuado a las riberas de varios ríos. Sus taludes se limpian y quedan desprotegidos contra la erosión con posibles implicaciones para la sedimentación y el riesgo de inundación aguas abajo de las zonas intervenidas. Enfoques sostenibles incluyen la bioingeniería y la ‘ingeniería suave’. El presente análisis puede contribuir al debate sobre el camino a seguir para la gestión de inundaciones en la provincia.


Palabras clave: Agua Superficial; Desastre Natural; Erosión; Gestión; Uso de la Tierra.


Abstract


In Manabí local and national authorities have implemented flood management plans; however, floods still cause major damages frequently. The objective of this research is to explore techniques that could be applied in Manabí for sustainable flood management (SFM). Two specific objectives are to explore the methods and techniques for i) SFM based on management of catchments, and ii)  SFM based on management of rivers and riverbanks. An analysis is undertaken from the technical, economic, social and environmental points of view. The review and analysis reveals that, regarding flood management based on catchment management, there are projects and hydraulic plans that have been effective to some extent. Namely: dams, runoff-retention walls and gully channelization and diversion works. However, an inadequate management has been given to the banks of many rivers. These river banks are cleaned and left unprotected against erosion, with possible implications for sedimentation and flood risk downstream of the intervened areas. Sustainable approaches include bioengineering and 'soft engineering'. The present analysis can contribute to the debate on the way forward for flood management in the province.


Keywords: Surface Water; Natural Disasters; Erosion; Management; Land Use.

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Biografía del autor

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Profesor a tiempo completo en la carrera de Ingeniería Hidráulica, PUCE Sede Manabí. Becario Senescyt retornado. Ingeniero Hidráulico. Maestría en River Basin Dynamics and Management with GIS, por la Universidad de Leeds, Inglaterra.

 

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Carrera de Ingeniería Hidráulica, Pontificia Universidad Católica del Ecuador, Portoviejo-Ecuador.

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Carrera de Ingeniería Hidráulica. Pontificia Universidad Católica del Ecuador, Chone-Ecuador.

##submission.authorWithAffiliation##

Carrera de Administración de Empresas. Pontificia Universidad Católica del Ecuador, Portoviejo-Ecuador.

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Publicado
2020-07-27
Sección
Protección del Ambiente