四十里湾海域营养盐年际变化及影响因素研究  

Annual variation of nutrients and influential factors on it in Sishili Bay

作　　者：邢红艳[1,2,3] 孙珊[1,2,3] 马元庆[1,2,3] 白艳艳[1,2,3] 靳洋[1,2,3] 刘义豪[1,2,3] 秦华伟[1,2,3] 李斌[1,2,3] 

机构地区：[1]山东省海洋水产研究所,山东烟台264006 [2]山东省海洋环境监测中心,山东烟台264006 [3]山东省海洋生态修复重点实验室,山东烟台264006

出　　处：《海洋通报》2013年第1期53-57,共5页Marine Science Bulletin

基　　金：国家海洋公益性行业科研专项(200805031;200905019;201105013);国家海洋局近岸海域生态环境重点实验室基金(200807);山东省农业重大应用技术创新项目;烟台市科技发展计划项目(2011457);水生动物营养与饲料"泰山学者"岗位经费

摘　　要：根据2003-2010年5-10月份海洋环境监测航次调查的资料,分析了烟台四十里湾海域营养盐的年际变化规律、结构特征及其影响因素。结果表明,8年来四十里湾海域营养盐DIN、SiO3-Si呈逐渐上升的趋势,PO4-P含量增加的趋势不明显。季节变化上,调查海区的夏季和秋季正处于丰水期,受降雨、陆源输入的影响,营养盐含量整体较高。调查海域Si∶N∶P的原子比8年来逐渐偏离了Redfield系数,呈不断升高的趋势;可以看出四十里湾海域正向P相对缺乏方向演变,且趋势逐年加重。潜在性富营养化评价模式评价结果表明,2003-2006年,四十里湾调查海域处于贫营养(Ⅰ)水平,2007-2010年,处于磷限制中度营养(ⅣP)水平;调查海域从贫营养逐渐过渡到中度营养状态。工业废水、生活污水、农业及污水处理厂等陆源输入给四十里湾带来了大量的营养盐;湾内养殖的多种经济双壳贝类和养殖中的污损动物的排泄及其残留物对海域营养物质有着非常显著的贡献。The series data of nutrients in Sishili Bay of Yantai for 8 years were reviewed.It was found that both concentration and structure were changed dramatically,and DIN and SiO3-Si showed a gradual upward trend and PO4-P had a large range of change in the eight years.The seasonal variation results indicated that nutrients were high in summer and autumn because of rain and runoff.Based on the Redfield ratio(Si:N:P=16:16:1),N:P and Si:P ratios were higher than that of Redfield and increased year by year.Potential eutrophication assessment was also applied to evaluate the eutrophication status of the area and the result showed that Sishili Bay could be characterized by phosphate-limiting moderate-level nutrient during 2007-2010.The terrestrial input was an important source for nutrients;shellfish aquaculture waste occupied a large percentage of pollutants discharged into the Sishili Bay.

关 键 词：营养盐 年际变化 烟台四十里湾 

分 类 号：P734.2[天文地球—海洋化学]