近年渤海中部海域活性磷酸盐的时空变化特征

发布时间：2018-05-01 11:31

本文选题：活性磷酸盐 + 时空变化　；参考：《渔业科学进展》2016年04期

【摘要】：渤海封闭性强,水动力条件和自净能力较弱,其生态系统较为敏感和脆弱。2011年位于渤海中部的蓬莱19-3油田发生重大溢油事故,对渔业生态环境和渔业资源造成了严重影响。为了解和掌握该起溢油污染事故发生后渔业生态环境的变化状况,分别于2012-2014年在渤海中部海域进行了9个航次的生态环境跟踪调查。利用其中部分调查资料,作者对渤海中部活性磷酸盐的时空变化特征及其影响因素进行了分析探讨。结果显示,(1)2012-2014年春季和夏季渤海中部海域活性磷酸盐含量符合第二类海水水质标准要求,秋、冬季部分海域已受到活性磷酸盐的污染。(2)不同季节渤海中部海域活性磷酸盐的平面分布趋势各异,垂直分布也存在季节差异。春季和夏季活性磷酸盐呈现由表层至底层递减的趋势,秋季和冬季接近呈垂直分布均匀状态。(3)渤海中部海域活性磷酸盐平均含量季节变化明显,其含量顺序由高到低依次为冬季、秋季、春季、夏季,冬季明显高于夏季。2014年渤海中部海域活性磷酸盐含量低于2013年,呈逐年降低趋势。(4)渤海中部海域活性磷酸盐时空变化受到诸多因素的影响,营养盐的外源补充、内源再生和生物消耗是影响活性磷酸盐时空变化的最重要因素。
[Abstract]:The Bohai Sea has strong closure, weak hydrodynamic condition and self-purification ability, and its ecosystem is sensitive and fragile. A major oil spill accident occurred in Penglai 19-3 oil field in the middle of Bohai Sea in 2011, which caused serious impact on fishery ecological environment and fishery resources. In order to understand and understand the changes of fishery ecological environment after the oil spill pollution accident, the ecological environment of 9 voyages were investigated in the middle of Bohai Sea from 2012 to 2014. Based on some investigation data, the temporal and spatial characteristics of active phosphate in the central Bohai Sea and its influencing factors are analyzed and discussed. The results show that the active phosphate content in the central Bohai Sea in the spring and summer of 2012-2014 conforms to the requirement of the second kind of seawater water quality standard. In winter, some sea areas have been polluted by active phosphate. (2) the distribution trend of active phosphate in the central Bohai Sea is different in different seasons, and the vertical distribution is also seasonal. In spring and summer, the active phosphate decreased from the surface to the bottom, and the average content of active phosphate in the central Bohai Sea changed obviously in autumn and winter. The order of its content from high to low is winter, autumn, spring, summer and winter. The active phosphate content in the central Bohai Sea in 2014 is lower than that in 2013. The temporal and spatial changes of active phosphate in the central Bohai Sea were affected by many factors. Exogenous nutrient supplement, endogenous regeneration and biological consumption were the most important factors affecting the spatiotemporal change of active phosphate.
【作者单位】：农业部海洋渔业可持续发展重点实验室山东省渔业资源与生态环境重点实验室中国水产科学研究院黄海水产研究所;
【基金】：农业部溢油专项“渤海生态环境监测与评估”(农办渔【2012】117号)和“应对溢油关键技术专项研究”(2012-NZ-5739)共同资助
【分类号】：X55

【相似文献】