青岛崂山湾海域营养盐时空特征及年际变化规律

发布时间：2018-05-06 03:35

本文选题：崂山湾 + 营养盐　；参考：《科学技术与工程》2016年13期

【摘要】：根据2012年5月至2015年3月对青岛崂山湾12个航次的调查资料,分析了DIN、PO_4-P和COD的时空特征及年际变化规律。运用单因子指数、富营养化指数和海水有机污染状况指数等方法评价了该海域富营养化状况。结果显示:NO_3-N为DIN的主要存在形式,DIN为崂山湾的主要污染因子,12个航次平均DIN浓度66.67%。符合一类海水水质标准;PO_4-P及COD浓度均符合一类海水水质标准。N/P近20年总体呈上升趋势,该海域已由氮限制水体转变为磷限制水体,营养盐结构发生了根本性变化。富营养化指数均值为0.42,海水有机污染指数变化区间为-0.35~1.50,较富营养化指数法、海水有机污染指数法结论更为客观。
[Abstract]:Based on the investigation data of 12 voyages in Laoshan Bay from May 2012 to March 2015, the temporal and spatial characteristics and interannual variation of DINPPO4-P and COD were analyzed. The eutrophication status of the sea area was evaluated by single factor index, eutrophication index and organic pollution index of seawater. The results show that the main form of DIN is the DIN. Din is the main pollution factor in Laoshan Bay, and the average DIN concentration of 12 voyages is 66.67. According to the first class seawater water quality standard, the concentrations of po4-P and COD are in line with the standard of seawater water quality of the first class. N / P has an overall upward trend in the past 20 years. The water body has changed from nitrogen to phosphorus, and the structure of nutrients has changed fundamentally. The mean value of eutrophication index was 0.42, and the variation range of seawater organic pollution index was -0.35 ~ 1.50, which was more objective than that of eutrophication index method and seawater organic pollution index method.
【作者单位】：山东省海洋资源与环境研究院山东省海洋生态修复重点实验室;
【基金】：海洋公益性行业科研专项(201205023) 国家自然科学基金青年项目(41206120)资助
【分类号】：X55

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