Evolution of the Southern Yellow Sea Cold Water Mass during the last 7 kyr from benthic foraminiferal evidence
Evolution of the Southern Yellow Sea Cold Water Mass during the last 7 kyr from benthic foraminiferal evidence
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从底栖有孔虫证据看近7年来南黄海冷水团的演化
DOI：
10.1007/s11430-017-9193-6
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发表时间：
2018-05
期刊：
影响因子：
--
通讯作者：
Meixun ZHAO
中科院分区：
文献类型：
--
作者：
Fuchang ZHONG;Rong XIANG;Yiping YANG;Meixun ZHAO
南黄海冷水团（YSCWM）与中国东部陆架海现代环流系统密切相关，对区域海洋环境变化具有重要影响。对长江流域全新世演化的研究将大大提高我们对区域环境变化机制的认识。底栖有孔虫对底水环境变化敏感，可作为底水环境重建的有用指标。本研究对黄海泥南缘N02岩心的底栖有孔虫进行了分析，以揭示黄海泥南缘N02岩心近7 kyr的期相演化。底栖有孔虫种群普查计数和q模式因子分析表明，全新世沉积环境可划分为3个阶段：6.9 ~ 5.0 ka，动物群以氨科汀子属为主，表明近7 kyr黄海沿岸流对研究区底水的影响最强，黄海沿岸流对研究区底水的影响较弱。从5.0 ~ 2.9 ka，日本半扎海的相对丰度显著增加，而a丰度显著增加。ketienzienss明显减小，反映出YSCWM强度相对较弱，范围可能有所缩小。YSCC对底层水的影响可能略有增加，但在此期间其影响仍然较弱。在低温和低盐度的物种中，如protelphidium tuberculatumandBuccellaspp显著增加。在2.9 ka以后发生了一次，表明在此期间YSCC对底水的影响较强，而YSCWM的强度在最近7 kyr处于最弱的状态。总体而言，YSCWM和YSCC对研究区底水性质的影响呈现出明显的跷跷板规律，一方的影响增大，另一方的影响减小，反之亦然。全新世YSCWM强度的波动可能是由于不同时期区域气候因子（El Niño南方涛动、东亚冬季风、北半球夏季日照等）对环流系统的作用分配不同所致。
The Southern Yellow Sea Cold Water Mass (YSCWM) is closely related to the modern circulation system of the east China shelf seas, which has significantly influenced regional marine environmental changes. The study of the Holocene evolution of the YSCWM will greatly improve our understanding of the mechanisms of regional environmental change. Benthic foraminifera are sensitive to bottom water environmental changes and can serve as useful indicators in bottom water environmental reconstruction. In this study, benthic foraminifera were analyzed in core N02 from the northwestern margin of the southern Yellow Sea Mud to decipher the phase evolution of the YSCWM during the last 7 kyr. Benthic foraminifera census counts and Q-mode factor analysis indicate that the Holocene sedimentary environment can be divided into three stages: From 6.9–5.0 ka, the fauna was dominated byAmmonia ketienziensis, indicating that the YSCWM was at its strongest during the last 7 kyr, while the Yellow Sea Coastal Current (YSCC) had a weak influence on the bottom water of the study area. From 5.0–2.9 ka, the relative abundance ofHanzawaia nipponicaremarkably increased while the abundance ofA. ketienziensisdecreased significantly, reflecting that the strength of the YSCWM was relatively weak and the range of the YSCWM might have contracted. The influence of the YSCC on the bottom water might have slightly increased, although its influence was still weak during this time. A notable increase in low-temperature and low-salinity species, such asProtelphidium tuberculatumandBuccellaspp. has occurred since 2.9 ka, indicating that the YSCC has had a strong influence on bottom water during this period, while the strength of the YSCWM has been at its weakest during the last 7 kyr. Generally, the influence of the YSCWM and the YSCC on the bottom water properties of the study area show an obvious seesaw pattern, with one’s influence increasing while the other’s influence decreases and vice versa. The fluctuations in the strength of YSCWM during the Holocene may be caused by the different effect allocations of regional climatic factors (i.e. El Niño Southern Oscillation, East Asian Winter Monsoon, summer insolation in the northern hemisphere, etc.) acting on the circulation system during different periods.
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影响因子：
2.3
作者：
C. Naimie;C. Blain;D. Lynch
通讯作者：
C. Naimie;C. Blain;D. Lynch
DOI：
10.1007/bf02047433
发表时间：
1971-03
期刊：
Journal of the International Association for Mathematical Geology
影响因子：
--
作者：
J. E. Klovan;J. Imbrie
通讯作者：
J. E. Klovan;J. Imbrie
中国黄土沉积物记录的全新世夏季和冬季东亚季风的异相演化
影响因子：
2.3
作者：
Dunsheng Xia;Jia Jia;Guanhua Li;Shuang Zhao;Haitao Wei;Fahu Chen
通讯作者：
Fahu Chen
中更新世以来黄海暖流和黄海冷水团的演化
DOI：
10.1016/j.palaeo.2015.11.018
发表时间：
2016-01
期刊：
Palaeogeography, Palaeoclimatology, Palaeoecology
影响因子：
--
作者：
Mei Xi;Li Rihui;Zhang Xunhua;Liu Qingsong;Liu Jianxing;Wang Zhongbo;Lan Xianhong;Liu Jian;Sun Rongtao
通讯作者：
Sun Rongtao
影响因子：
2.1
作者：
D. Kim;B. Park;I. Shin
通讯作者：
D. Kim;B. Park;I. Shin