摘要
依据2014年在渤海湾西南部海域进行的海洋环境调查结果,对该海域海洋水环境要素的时空变化特征进行研究,评价该海域水环境质量和营养状态水平,结合文献资料探讨自1982年以来的海洋环境状况及变化趋势.结果表明:无机氮(DIN)是该海域最主要的污染物且污染较重,秋季污染最重;春、夏季基本满足二类海水水质标准,秋、冬季超标较多,秋季44%的站位DIN超过四类标准;海域内氮磷比偏高,营养盐结构为“磷限制”;秋季大部分海域呈富营养化和有机污染状态,冬季次之;河口等近岸海域富营养化严重;相关性分析显示海域内的氮、磷、硅营养盐主要来自于陆源输入.
Here the data obtained in the coastal waters of southwestern Bohai Bay from February to November 2014,to evaluate the current environmental status and to identify issues from the region throughout all four seasons.Temporal spatial variations of nutrient level and organic pollution situation were evaluated.Combined with historical data from 1982,and the trend of major pollution elements in this area and expound the present situation of the marine environment were discussed.The evaluated outcome indicated that the coastal aquatic environment of the area was in a general condition.DIN was the main pollution in this area which was serious,especially in autumn with 44%of the DIN stations were exceeded the Class IV seawater quality standard.The environment quality of sea water was better in spring and summer,while the pollution degree has increased in autumn and winter.Eutrophication and organic pollution was observed in autumn and winter,and the main eutrophication areas were located in the coastal waters such as estuaries.The ratio of nitrogen to phosphorus was high,and the structure of nutrients was“phosphorus limited”.The correlation analysis suggested that nitrogen,phosphorus and silicon nutrients in the sea area were mainly from land source.
作者
王以斌
尹晓斐
张晶晶
吴文涛
刘军
臧家业
WANG Yibin;YIN Xiaofei;ZHANG Jingjing;WU Wentao;LIU Jun;ZANG Jiaye(First Institute of Oceanography,Ministry of Natural Resources,Qingdao,Shandong 266061,China;Institute for Advanced Study of Coastal Ecology,Ludong University,Yantai,Shandong 264025,China;College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao,Shandong 266100,China)
出处
《福州大学学报（自然科学版）》
CAS
北大核心
2021年第2期261-269,共9页
Journal of Fuzhou University(Natural Science Edition)
基金
国家自然科学基金资助项目(41806097)
山东省重点研发计划(2018GHY115039)。
关键词
海洋环境
水环境质量评价
富营养化
时空变化
渤海湾
marine environment
water quality assessment
eutrophication
temporal spatial variations
Bohai Bay
