珠江口表层沉积物底栖有孔虫分布及环境指示

对珠江口134个站位的表层沉积物进行底栖有孔虫分析,共发现底栖有孔虫68属106种,其中玻璃质壳48属65种,瓷质壳17属21种,胶结壳3属20种。有孔虫丰度、种数和分异度都基本表现为由河口向外海迅速增加。对有孔虫属种数据使用因子分析,前3个因子解释了总方差的86.2%,根据有孔虫属种因子得分情况,将有孔虫划分为Ammonia beccarii-Elphidium nakanokawaense亚组合、Ammonia beccarii-Haplophragmoides canariensis亚组合和Hanzawaia nipponica-Elphidium advenum-Ammonia com...

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Bibliographic Details
Published inHăiyang dĭzhĭ yu dĭsĭjĭ dĭzhĭ Vol. 31; no. 6; p. 91
Main Authors LI, Tao, XIANG Rong, LI, Tuanjie
Format Journal Article
LanguageChinese
Published Beijing Marine Geology and Quaternary Geology 01.01.2011
Subjects
Abundance
Ammonia beccarii
Benthos
Community structure
Correlation analysis
Distribution
Elphidium
Elphidium advenum
Environmental impact
Estuaries
Estuarine dynamics
Factor analysis
Foraminifera
Genera
Rivers
Sediment
Sediment samplers
Sediment samples
Sediments
Species
Species diversity
Subgroups
Water depth
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Summary:对珠江口134个站位的表层沉积物进行底栖有孔虫分析,共发现底栖有孔虫68属106种,其中玻璃质壳48属65种,瓷质壳17属21种,胶结壳3属20种。有孔虫丰度、种数和分异度都基本表现为由河口向外海迅速增加。对有孔虫属种数据使用因子分析,前3个因子解释了总方差的86.2%,根据有孔虫属种因子得分情况,将有孔虫划分为Ammonia beccarii-Elphidium nakanokawaense亚组合、Ammonia beccarii-Haplophragmoides canariensis亚组合和Hanzawaia nipponica-Elphidium advenum-Ammonia compressiuscula组合。底栖有孔虫分布与环境有较大的关系,水深和盐度控制了底栖有孔虫分布和种群组成,底质类型、水动力条件和沉积速率也对有孔虫的生态结构带来了影响。
ISSN:0256-1492
DOI:10.3724/SP.J.1140.2011.06091