East China Normal University, Shanghai, China.
Environ Monit Assess. 2012 Dec;184(12):7425-38. doi: 10.1007/s10661-011-2510-z. Epub 2012 Jan 12.
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.
近年来，发展中国家的城市河流恢复工作迅速增加。河流健康评估为评估溪流和河流的生态条件提供了新的视角。中国上海的苏州河恢复项目是环境保护的一个里程碑。基于 2007 年 3 月 11 日至 4 月 20 日收集的环境和生态数据，包括五类 17 个指标，构建并分析了苏州河的河流健康指数（RHI），以量化经过恢复项目后的城市河流的生态系统。34 个地点的 RHI 得分范围为 19.24 至 33.36，即从差到好。河流等级之间没有显著的 RHI 差异，而土地利用的差异导致了渠道流状态（B12）、渠道变化（B21）、渠道弯曲度（B22）、河岸稳定性（B23）、河岸剖面类型（B25）和河岸植被带宽度（B31）的显著差异。河流恢复导致了水文条件和渠道物理形态的改善，而氨氮（B44）和大型无脊椎动物科存在的指标得分（B51）是任何指标中最低的。本案例研究支持在中国将河流健康评估用作水质分析的补充。
