通过生物监测手段对长江口宝山北水道航道疏浚工程进行了生态环境影响跟踪监测和评价.结果发现,工程结束后生物优势种和多样性指数与环评同期相比基本稳定,施工期间生态指标密度和生物量有所波动.监测评价结果反映了疏浚工程的施工对长江口的生态环境影响有限,并随着工程结束周边水域环境正日益恢复.%Through biomonitoring methods, the Sea-route Dredging project of Yangtze Estuary has been evaluated in eco-environmental impact. The index of density and biomass was fluctuating during the construction period, while the primary index of dominant species and diversity index was steady during construction period and Environmental Impact Assessment period. Monitoring dada shows there was a little of influence in Dredging Project period nearly, and the environment of the water area was coming back little by little.
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