Volume 29: Closing Carbon Cycles – A Transformation Process Involving Technology, Economy, and Society: Part IV

An urban waterlogging footprint accounting based on emergy Keling Liu, Saige Wang, Bin Chen

Abstract

The waterlogging disaster has become a major threat to the sustainable and resilient development of cities. However, there is still a lack of unified accounting for waterlogging damage, particularly ignoring its environmental loss. In this paper, we developed an emergy-based footprint to assess the synthetic economic and environmental impact of urban waterlogging. The results show that the average waterlogging footprint under different return periods is 4.43E +19sej. The waterlogging footprint of each sector sorted from largest to smallest is transportation (35.47%), commerce (27.48%), environment (17.79%), industry (13.02%), residential (3.97%), infrastructure (2.26%), indicating that the impact of waterlogging on the environment is noticeable. The emergy-based waterlogging footprint can provide a useful metric for quantifying the potential and indirect losses embodied in the waterlogging processes. This paper may provide a useful tool for urban waterlogging disaster risk and loss assessment.

Keywords Urban waterlogging; Depth-damage curve; Emergy; Disaster loss