Land Use Planning to Reduce Flood Risk: Opportunities, Challenges and Uncertainties in Developing Countries

• Published in: Sensors (Basel, Switzerland) Vol. 22; no. 18; p. 6957
• Main Authors: Der Sarkissian, Rita, Al Sayah, Mario J., Abdallah, Chadi, Zaninetti, Jean-Marc, Nedjai, Rachid
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.09.2022; MDPI
• Subjects: Architecture, space management; Civil Engineering; Decision-making; Developing countries; Digitization; disaster risk reduction; Engineering Sciences; Environmental Engineering; Environmental Sciences; Floodplains; Floods; Geographic information systems; geospatial; Humanities and Social Sciences; Land cover; Land use; Land use management; Land use planning; LDCs; Lebanon; Planning; Precipitation; Remote sensing; resilience; Risk communication; Risk management; Risques; Signal and Image processing; Time series; Uncertainty; Zoning ordinances; Lebanon; Switzerland; disaster risk reduction; remote sensing; land-use planning; geospatial; resilience
• ISSN: 1424-8220; 1424-8220
• DOI: 10.3390/s22186957

Land use planning for flood risk reduction has been significantly addressed in literature. However, a clear methodology for flood mitigation oriented land-use planning and its implementation, particularly in developing countries like Lebanon, is still missing. Knowledge on land use planning is still in its earliest stages in Lebanon. A lack of hazard-informed land use planning coupled to random land cover pattern evolution characterize the country. In response, this study focuses on the opportunities, challenges and uncertainties resulting from the integration of land use planning into efficient Disaster Risk Reduction (DRR). For this purpose, GIS-based analyses were first conducted on the current land use/land cover (LU/LC) of the Assi floodplain. Then, the areas land cover was retraced and its evolution after several flood occurrences was assessed. Subsequently, a flood hazard-informed LU/LC plan was proposed. The latter is mainly based on the spatial allocation of land-uses with respect to different flood hazard levels. This approach resulted in the production of a land use planning matrix for flood risk reduction. The matrix approach can serve as a tool for designing sustainable and resilient land cover patterns in other similar contexts while simultaneously providing robust contributions to decision-making and risk communication.