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中文摘要：
根据2011年夏季（8月）、秋季（11月）和2012年冬季（3月）、春季（5月）水环境调查资料,采用单因子污染指数法、营养指数法、营养状态指数法和有机污染综合指数法对威海双岛湾海域人工鱼礁区域的水质状况进行了评价。结果表明：（1）鱼礁区溶解氧、pH、无机氮、活性磷酸盐和COD污染指数均〈1.0,海水未受到上述因子的污染;（2）鱼礁区海水处于贫营养水平,水质指标季节变化不明显;（3）鱼礁区与鱼礁影响区、对照区比较,海水营养指数、营养水平和有机污染指数无显著差异,显示鱼礁短期内对水质改善作用不明显。
英文摘要：
Based on the water environmental data from four surveys in August, November of 2011 and March, May of 2012, the assessment on water quality condition of the artificial reef waters of Shuangdao Bay was carried out with the single factor standard index, the nutrition condition performance figure, the nutrition index, and the organic pollution appraisal index. The results show that：（ 1 ）The pollution index value of dissolved oxygen（ DO）, pH, inor- ganic nitrogen, phosphate and chemical oxygen demand（COD） in the artificial reef waters was all less than 1.0,in- dicating that seawater was not polluted by the above factors. （2） The seawater was in poor nutrition level in the ar- tificial reef waters, while obvious seasonal variation of water quality condition was not found. （3） There was no sig- nificant difference in nutrition index value, nutrition level and organic pollution index value of seawater between ar- tificial reef area and affecting area, control area, showing that the effects of artificial reefs for improving water quali- ty was unapparent in short period.
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