Urban ecological analysis and health risk assessment under the concept of the sponge city

Abstract

BACKGROUND: With the advancement of urbanization, the original hydrological environment of the city is damaged. OBJECTIVE: This study aims to solve the problems in urban water ecological environment in urbanization based on the construction concept of the sponge city. METHODS: First, through the analysis of waterlogging caused by urbanization, the construction of the sponge city is proposed, and the function and landscape architecture scheme of the sponge city are introduced. Then, in order to achieve the comprehensive control goal of the sponge city, according to related disciplines and experimental methods, the sponge city is evaluated qualitatively and quantitatively from the aspects of environment, resources, security, system and ecology. Finally, the mosquito problem caused by the sponge city landscape is studied from the residents’ subjective feelings through the questionnaire survey. RESULTS: The results show that 60%residents think that the mosquito problem in the residential areas has a “very large” and “relatively large” impact, which has a serious impact on the physical and mental health of residents in the community; female residents are more vulnerable to the interference of mosquitoes; in the residential areas built for 5–10 years, the residents have the strongest feeling of mosquitoes. CONCLUSIONS: This exploration provides a reference for studying the health risk analysis of residents under the construction of sponge city.