杭州岳王庙景观水体生态修复工程研究

针对约400m^2小面积景观水体存在的问题,采取以沉水植物恢复技术为核心,辅以阿科蔓生态基、生态浮床建设、生物操纵等措施进行综合治理,经过12个月的施工和调试后,其水质得到了明显改善,COD、BOD、氨氮、总磷、总氮、SS分别由4.24、7.62、2.24、0.49、9.31、11.00mg/L下降至2.04、4.76、0.69、0.27、3.72、6.00mg/L。经过治理后,该景观水体的有机污染和富营养化得到一定程度的控制,藻类水华的暴发得到了缓解,水体由治理前的暗绿色转变为黄绿色,透明度由50cm提高至近65cm。该修复工程的成功实施为城市小面积景观水体的治理提供了一定的指导范式。

Study on Ecological Restoration of the Scenic Water in Yuewangmiao of Hangzhou

On account of the existent problems of the small scenic water of 400 m2,with the recovery technique of submerged plants as the core,assisted by the measures of Arco Man ecological base,construction of ecological floating bed,bioma-nipulation and so on,the scenic water was treated comprehensively and the water quality was obviously improved after the implementation and commissioning of twelve month,COD,BOD ammonia nitrogen,total phosphorus,total nitrogen and SS respectively decreasing from 4.24 mg/L,7.62 mg/L,2.24 mg/L,0.49 mg/L,9.31 mg/L,11.00 mg/L to 2.04 mg/L,4.76 mg/L,0.69 mg/L,0.27 mg/L,3.72 mg/L,6.00 mg/L. After the treatment,the organic pollution and eutrophication of the scenic water was controlled to a certain degree,the eruption of the algal bloom was mitigated,and the scenic water changed from dark green to yellowish green,the transparency increased from 50cm to nearly 65cm. The successful implementation of the restoration works provided certain guiding paradigm for the treatment of the small scenic water in cities.