An Interpretation of 'Water Sensitivity' and 'Resilience' Bringing Together Flood and Drought Risk Management (PAP014860)

Código

PAP014860

Autores

Carlos Salinas Rodriguez, B. Gersonius, Richard Ashley, Jeroen Rijke, Tony Wong, Chris Zevenbergen

Tema

Flood resilient societies through community preparedness

Resumo

Water Sensitive Urban Design (WSUD) defines a new paradigm in total water cycle management that integrates both the engineering and ecological professions associated with protection of urban water resources and also the built environment professions. Synergistic integration between the extant knowledge on WSUD together with resilience concepts, can lead to the establishment of a new model for Water Sensitive Cities, which are also resilient to floods and droughts.Sensitivity and resilience are concepts frequently defined independently from one another. Having a myriad of concepts for sensitivity and resilience, it is important to establish the provenance of these; what is their current status, and where are they heading to, in such a way that the ?grey zones? of vagueness are covered and the definitions made clear for both researchers and practitioners in the field of water cycle management. Moreover, it is necessary to show how to assess the sensitivity and resilience of urban areas as an outcome.Bringing together both concepts can advance their application with respect to flood and drought risk management. The interaction between sensitivity and resilience can best be considered by identifying the system response curve and recovery threshold. Comparison of the response curve with the recovery threshold provides an indication of the boundary of resilience of the system. If the response curve exceeds the recovery threshold, the system is not likely to persist and no longer be robust, shifting to another regime.This paper updates the 3 Points Approach (3PA) to assist in placing urban surface water within the land use, urban design and planning process so that maximum value can be obtained from the synergies between surface water and other urban systems. The updated interpretation of the approach considering four different domains, allows a better understanding of the continuous process in relation to resilience, sensitivity and the point at which a regime shift occurs.