Comprehensive performance evaluation after completion of the urban wetland park: Case study of the Daguan wetland park in Guangzhou City

This paper takes Guangzhou Daguan Wetland Park as the research object. Based on the establishment of a comprehensive index evaluation system, we evaluates whether the Daguan Wetland Park takes into account ecological and social benefits through water quality monitoring, questionnaire survey, and vegetation sample survey. This paper evaluates the ecological and social benefits of Daguan Wetland Park through water quality monitoring, questionnaire survey, vegetation quadrat survey and other methods, then the paper provides guidance for the future design of wetland parks. The assessment results show that the wetland park has initially achieved the goal of balancing ecological and social benefits. There are various habitat types in the park, and there are 32 families, 54 genera and 66 species plant species. The Shannon-wiener index analysis shows that the herb layer is rich in diversity, but the tree layer is poor in diversity due to artificial planting. The tandem ponds system has significant pollutant purification effect, which can significantly reduce the nitrogen content in the catchment area, but its water purification effect has not been maximized. The park has attracted a large number of visitors from nearby, and their overall satisfaction of the park were high. However, the tourists′ evaluation of the water quality of the upper ponds was poor due to the continuous draining of external sewage. Based on the above analysis, this paper proposes guidance for the future design of urban wetland parks.