Based on an introduction to the engineering of the ecological control of S. alterniflora and the improvement of birds habitats in Chongming Dongtan,the ecological benefits of this engineering in this area were studied. As indicated by the results,the engineering produced certain irreversible adverse impact in regional eco-environment during its construction, but the adverse impact would be erased during the later period after the completion of this engineering. The engineering would help to improve the eco-environment of Dongtan and solve the ecological problems caused by the invasion of S. alterniflora; it was suggested to adopt some measures both during and after the engineering construction to reduce its adverse influence.%在回顾上海市崇明东滩互花米草生态控制与鸟类栖息地优化工程的基础上,分析了该工程对崇明东滩生态环境的生态效益.结果表明,互花米草生态控制与鸟类栖息地优化工程建设过程中主要对生态环境造成局部的和一定不可逆的不利影响；工程完成后有助于消除建设工程中产生的不利影响,帮助改善东滩生态环境,解决互花米草入侵导致的生态问题；建议建设过程中及建设完成后均应注意采取措施减缓不利影响.
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