Abstract
Restoration of urban streams and rivers has increased rapidly in developing countries in recent years. Estimating river health provides a new perspective on evaluating the ecological conditions of streams and rivers. The Suzhou Creek restoration project in Shanghai, China is a milestone for environmental protection. Based on the environmental and ecological data, including 17 indicators in five categories, collected from March 11 to April 20, 2007, the river health index (RHI) for Suzhou Creek was constructed and analysed to quantify the ecosystem of this urban river after a restoration project. The RHI scores of 34 sites ranged from 19.24 to 33.36, i.e. from poor to good. There were no significant RHI differences among stream orders, while differences in land use resulted in significant differences in channel flow status (B12), channel alteration (B21), channel sinuosity (B22), bank stability (B23), bank profile type (B25) and riparian vegetative zone width (B31). River restoration led to improved hydrological condition and channel physical form, while ammonia nitrogen (B44) and indicator scores of the presence of macro-invertebrate families (B51) were the lowest of any indicator. This case study supports the use of river health assessment as a supplement to water quality analysis in China.
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The research was supported by the “National Natural Science Foundation of China (No.71073055, 40871016)” and the “Fundamental Research Funds for the Central Universities”.
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Che, Y., Yang, K., Wu, E. et al. Assessing the health of an urban stream: a case study of Suzhou Creek in Shanghai, China. Environ Monit Assess 184, 7425–7438 (2012). https://doi.org/10.1007/s10661-011-2510-z
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DOI: https://doi.org/10.1007/s10661-011-2510-z