2015年春、夏季莱州湾营养盐分布特征

发布时间：2018-05-23 09:34

本文选题：莱州湾 + 营养盐　；参考：《海洋科学进展》2017年02期

【摘要】：根据2015-05和2015-08莱州湾及黄河口邻近海域2个航次的现场调查资料,研究了莱州湾营养盐分布特征及影响因素。结果表明,莱州湾表层营养盐浓度分布总体上呈现由西南部湾顶向东、北方向递减的趋势。浮游植物生长繁殖对海湾中央海域营养盐分布有一定影响。春季营养盐分布一定程度上受海湾内环流的影响,但在夏季环流作用不明显。黄河入海口改道变为东北方向入海后,其对莱州湾营养盐输入的影响已很小,陆源营养盐主要来源转变为以小清河为主的西南部入湾河流,据此建议将莱州湾西南部入海河流作为营养盐类污染物重点控制对象。
[Abstract]:Based on the field investigation data of two voyages in Laizhou Bay and the Yellow River Estuary, the distribution characteristics and influencing factors of nutrients in Laizhou Bay were studied. The results show that the distribution of nutrient concentration in the surface layer of Laizhou Bay is decreasing from the top of the southwest bay to the east and north. Phytoplankton growth and reproduction have a certain effect on the distribution of nutrients in the central Gulf. The distribution of nutrients in spring is influenced to some extent by the circulation in the bay, but the circulation is not obvious in summer. After the diversion from the mouth of the Yellow River to the northeast, its influence on the nutrient input of the Laizhou Bay has been very small, and the main source of the terrestrial nutrient has changed to the southwest of the Bay River, which is dominated by the Xiaoqing River. It is suggested that the rivers entering the sea in the southwest of Laizhou Bay should be regarded as the key control objects of nutrient salts.
【作者单位】：国家海洋局第一海洋研究所;青岛海洋科学与技术国家实验室海洋生态与环境科学功能实验室;
【基金】：国家自然科学基金委员会-山东省人民政府联合资助海洋科学研究中心项目——海洋生态与环境科学(U1406403) 海洋公益性行业科研专项——滨海湿地固碳能力提升技术及应用示范(201205008)
【分类号】：P734.44;X55

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