DISTRIBUTION OF BENTHIC FORAMINIFERA AND ITS BEARING ON MARINE ENVIRONMENTAL FACTORS IN THE NORTH YELLOW SEA SURFACE SEDIMENTS
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摘要: 对2006年8月取自北黄海的302个表层沉积物样品中的底栖有孔虫群落进行了分析,结果表明:北黄海底栖有孔虫群落以适应低温、低盐的冷水种和广温、广盐种为主,胶结质壳底栖有孔虫含量明显高于我国其他海区。利用Q型因子分析提取了5个主因子,通过将主因子代表的底栖有孔虫组合与环境影响因子之间的对比印证,揭示了其内在联系,北黄海底栖有孔虫分布的决定性因素是表层沉积物的粒度,而温度和盐度则起到次要作用,该海区水深变化对底栖有孔虫分布的影响没有明显的规律性。Abstract: 302 surficial sediment samples obtained from the North Yellow Sea in August 2006 were selected to study the distribution of benthic foraminifera and its relation to the modern marine environment. The benthic foraminiferal fauna was mainly composed of species with high tolerance towards low temperature and low salinity. Moreover, percentages of species were obviously larger than in other Chinese seas. 56 species/genera with relatively high abundances were chosen to carry out Q-mode factor analysis, 5 varimax factors were obtained, and they explain 84% of the total variance. Correlations between these factors and environmental parameters were established by mutual comparison. and told us that the sediment granularity is the most important environmental factor controlling the distribution of foraminifera in the North Yellow Sea,and the second are the sea water temperature and salinity.Water depth showed indistinct influence on the distribution of foraminifera.
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Key words:
- benthic foraminifera /
- marine environment /
- North Yellow Sea
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[1] Polski, W.,Foraminiferal biofacies off the north Asiatic coast[J].Journal of Paleontology.1959.33, 569-587.
[2] 何炎, 胡兰英, 王克良. 江苏东部第四纪有孔虫[J]. 中国科学院地质古生物研究所集刊, 1965, (4):51-162.[HE Yan, HU Lanying, WANG Keliang. Quaternary foraminifera in the east region of Jiangsu Province[J]. Memoirs of the Institute of Geology and Palaeontology, Chinese Academy of Sciences. 1965
, (4):51-162.]
[3] 汪品先, 闵秋宝, 卞云华. 南黄海西北部底质中有孔虫、介形虫分布规律及其地质意义[C]//海洋微体古生物论文集北京:海洋出版社,1980:61-83.[WANG Pinxian, MIN Qiubao, BIAN Yunhua. Distribution of foraminifera and ostracoda in bottom sediments of the northwestern part of the southern Yellow Sea and its geological significance[C]//Papers on Marine Micropaleontology. Beijing:China Ocean Press, 1980:61
-83.]
[4] 汪品先, 闵秋宝, 卞云华. 黄海有孔虫、介形虫组合的初步研究[C]//海洋微体古生物论文集, 北京:海洋出版社, 1980, 84-100.[WANG Pinxian, MIN Qiubao,BIAN Yunhua. A preliminary study of foraminiferal and ostracod assemblages of the Yellow Sea[C]//Papers on Marine Micropaleontology.Beijing:China Ocean Press, 1980:84
-100.]
[5] 汪品先, 章纪军, 赵泉鸿,等.东海底质中的有孔虫和介形虫[M]. 北京:海洋出版社, 1988.[WANG Pinxian, ZHANG Jijun, ZHAO Quanhong, et al. Foraminifera and Ostracod in Surface Sediments of the East China Sea[M]. Beijing:China Ocean Press, 1988.]
[6] Murray J W.Distribution and Ecology of Living Benthic Foraminifera[M]. Heinemann Educational Books, 1980:1-274.
[7] 许东禹, 刘锡清, 张训华, 等. 中国近海地质[M]. 北京:地质出版社, 1997.[XU Dongyu, LIU Xiqing, ZHANG Xunhua, et al. Geology of China Offshore Areas[M]. Beijing:Geological Publishing House, 1997.]
[8] 刘兴泉. 黄海冬季环流的数值模拟[J]. 海洋与湖沼. 1996, 27(5):546-555.
[LIU Xingquan. Numerical simulation of the Yellow Sea winter-time circulation[J]. Oceanologia et Limnologia Sinica,1996, 27(5):546-555.]
[9] 刘敏厚, 吴世迎, 王永吉. 黄海晚第四纪沉积[M]. 北京:海洋出版社, 1987:5-10.[LIU Minhou, WU Shiying, WANG Yongji. Late Quaternary Geology of the Yellow Sea[M]. Beijing:China Ocean Press, 1987:5
-10.]
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