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目的:揭示人类活动对渤海生态环境的影响,为人类活动对近海生态环境的影响评价和决策管理提供一定的科学依据。方法:用色谱飊质谱联用仪(GC-MS)分析位于渤海埕岛油田石油钻井平台附近的沉积物柱样,研究柱样沉积物中烃类化合物的地球化学特征,并探讨其沉积环境的指示意义。结果:黄河的陆源物质输运是渤海沉积物中有机质的重要来源。此外,表层沉积环境以氧化为主,15cm深度后的沉积环境由相对偏氧化向偏还原过渡。结论:对比于渤海烃类化合物的沉积记录发现,渤海柱样沉积物分子组成特征变化趋势亦与渤海石油开发勘探的历程基本相似。
Objective: To reveal the influence of human activities on the ecological environment in Bohai Sea, and to provide some scientific evidences for human activities impact assessment and decision-making management on coastal ecological environment. Methods: The sediment samples near the oil rigs in Chengdao Oil Field in Bohai Sea were analyzed by GC-MS to study the geochemical characteristics of hydrocarbon compounds in the sediment samples and to explore their sedimentary environment Indicate the meaning. Results: The terrestrial material transport in the Yellow River is an important source of organic matter in the sediments of the Bohai Sea. In addition, the surface sedimentary environment is dominated by oxidation, and the sedimentary environment after 15 cm depth changes from relatively partial oxidation to partial reduction. Conclusion: Comparing with the sedimentary records of hydrocarbons in the Bohai Sea, it is found that the trend of molecular composition of the sediments in the Bohai Sea is similar to that of the Bohai Sea oil exploration.