Multi-scale approach to assess the impacts of land use evolution and rainwater management practices on the hydrology of periurban catchments. Application to the Yzeron catchment (150 km 2 )

Abstract : The anthropogenic influence or " artificialization " generated by land use evolution and water flow paths modifications induces changes in the hydrology of watersheds. To help stakeholders to assess the vulnerability of their territory by addressing different rainwater management and planning issues, a methodology based on a multi-scale distributed hydrological modelling approach is proposed. The objective is to quantify the impact of ongoing urbanization and stormwater management on the long-term hydrological cycle of a medium-sized watershed (150 km 2). The described method relies on several tools and data: a distributed hydrological model adapted to the characteristics of periurban areas, land use and land cover maps from different dates (past, present, future) and information about rainwater management collected from local authorities. The case study area is the Yzeron periurban catchment, located near Lyon (France).
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Meriem Labbas, Flora Branger, Isabelle Braud, Sven Kralisch, Christine Jacqueminet, et al.. Multi-scale approach to assess the impacts of land use evolution and rainwater management practices on the hydrology of periurban catchments. Application to the Yzeron catchment (150 km 2 ). NOVATECH 2013 8ème Conférence internationale sur les techniques et stratégies durables pour la gestion des eaux urbaines par temps de pluie, 2013, Lyon, France. ⟨ujm-01620553⟩

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