渔业科学进展2016，Vol.37Issue(4)：28-35,8.DOI:10.11758/yykxjz.20150527002
近年渤海中部海域活性磷酸盐的时空变化特征
Recent Temporal and Spatial Variation in Active Phosphate Concentration in Seawater of the Central Bohai Sea
摘要
Abstract
The Bohai Sea is a semi-closed gulf with weak hydrodynamic condition and self-purification capacity. Therefore its eco-system is more sensitive and fragile than open seas. A serious oil spill accident occurred in the Penglai 19-3 oil field located in the central Bohai Sea in 2011, which severely affected the marine ecological environment and fishery resources. To determine the aftermath in fishery ecological environment, nine surveys were carried out in the central Bohai Sea in 2012–2014. Based on part of the survey data, we analyzed the temporal and spatial variation in active phosphate and the corresponding factors in the central Bohai Sea. The results showed that the levels of active phosphate met thesecond class of sea water quality standard in spring and summer from 2012 to 2014, but the pollution caused by active phosphate was observed in part of the survey in autumn and winter; the horizontal and vertical distribution of active phosphate varied in different seasons, and in spring and summer the concentration of active phosphate gradually decreased along with the increase in depth, while in autumn and winter it was almost constant from the surface to the bottom; the seasonal mean concentration of active phosphate followed the order winter>autumn>spring>summer, and it was obviously higher in winter than in summer, plus the mean concentration was lower in 2014 than in 2013; The distribution and variation of active phosphate in the central Bohai Sea was affected by many factors, and key ones included exogenous supplement, endogenous release of nutrients, and biological consumption.关键词
活性磷酸盐/时空变化/影响因素/渤海中部海域Key words
Active phosphate/Temporal and spatial variation/Influencing factors/Central Bohai Sea分类
资源环境引用本文复制引用
陈聚法,赵俊,过锋,曲克明,崔正国,孙雪梅,朱建新,丁东生,刘传霞..近年渤海中部海域活性磷酸盐的时空变化特征[J].渔业科学进展,2016,37(4):28-35,8.基金项目
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 （农办渔【2012】117号）
