中街山列岛海域增养殖区表层营养盐及富营养化评价
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贵州民族大学化学与环境科学学院,国家海洋局东海分局舟山海洋工作站

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P7

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] 2012年教育部新世纪人才支持计划项目(NCET-12-0659),2012年贵州省优秀科技教育人才省长资金项目(黔省专合字[2012]71号), 2012年贵阳市低碳科技计划项目(筑科合同[2012205]号).


Nutrients and eutrophication evaluation of waters mariculture zone in Zhongjieshan archipelago
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Zhoushan marine station,east China sea branch of the national oceanographic bureau

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    摘要:

    本文调查把2010年春、夏、秋季中街山列岛增养殖区表层海水中溶解态无机氮(DIN)、活性磷酸盐(DIP)和化学需氧量(COD)等水质指标及该海域的富营养化程度。结果表明,海水温度、盐度、pH、溶解氧、COD、无机氮(DIN)、无机磷(DIP)的月平均值均呈季节性显著差异。COD平均值较低,均低于一类海水标准;就DIN而言大多数站位为劣四类海水,而DIP表现为大多数站位属于二或三类海水。E值表明海水基本处于高富营养状态,且富营养化状态指数中COD占优势,其次为DIN,这两者起到绝对性作用;N:P值表明调查海区的海水基本处于P限制潜在性营养;有机污染指数A值表明所调查海域海水基本处于轻度有机物污染。营养盐与盐度和pH 都呈显著的负相关,其中与磷酸盐的负相关最为显著,且各营养盐之间大都呈正相关。

    Abstract:

    This paper study eutrophication of water quality indexes, such as dissolved inorganic nitrogen (DIN), phosphate (DIP) and chemical oxygen demand (COD) in Zhongjieshan mariculture zone in 2010. The results show that in spring, summer, autumn, the sea surface water temperature, salinity, pH, dissolved oxygen in the monthly average values were significantly seasonal differences. The average monthly values (including COD, DIN, and DIP) showed also significant seasonal difference. The mean value of COD was relatively low, which was lower than the first class seawater standard. And DIN in most stations was inferior to four categories of seawater, and the performance of the DIP for most stations belonging to the two or three kinds of sea water. A value of E indicated that the sea water at high eutrophication, eutrophication index and the dominance of COD, followed by DIN, both of which played a decisive. a value of N:P indicated that the investigation of sea water was in the P limit the potential of nutrition. Organic pollution index A value indicated that the investigation of seawater was in mild organic matter pollution. Nutrient and salinity and pH had a significant negative correlation with phosphate negative correlation, which was the most significant, and the various nutrients were were positively related to each other.

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朱四喜,方添坤. 中街山列岛海域增养殖区表层营养盐及富营养化评价[J]. 科学技术与工程, 2014, 14(4): .
Zhu Sixi, Fang Tiankun. Nutrients and eutrophication evaluation of waters mariculture zone in Zhongjieshan archipelago[J]. Science Technology and Engineering,2014,14(4).

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  • 收稿日期:2013-09-03
  • 最后修改日期:2013-09-23
  • 录用日期:2013-10-14
  • 在线发布日期: 2014-02-28
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