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1 引言 底栖有孔虫是海洋古环境记录的一项重要指标。研究现代海底沉积物中底栖有孔虫分布与现代海洋环境之间的关系,对于我们研究和认识过去的古海洋环境变迁有着重要的意义。大量研究表明,水深、底层水氧含量和有机质供应状况等因素制约着底栖有孔虫组合的分
1 Introduction Benthic foraminifera is an important indicator of marine paleoenvironmental records. Studying the relationship between the distribution of benthic foraminifera and the modern marine environment in modern seabed sediments is of great significance for us to study and understand the past vicissitudes of ancient marine environment. Numerous studies have shown that factors such as water depth, oxygen content in the bottom water and the availability of organic matter constrain the benthic foraminiferal assemblage