Environmental processes derived from peatland geochemistry since the last deglaciation in Dajiuhu, Shennongjia, central China
Environmental processes derived from peatland geochemistry since the last deglaciation in Dajiuhu, Shennongjia, central China
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中国中部神农架大九湖末次冰消期以来泥炭地地球化学的环境过程
DOI：
10.1111/bor.12168
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发表时间：
2016-07
期刊：
影响因子：
2.2
通讯作者：
Zheng Chaogui
中科院分区：
文献类型：
--
作者：
Li Yuanping;Ma Chunmei;Zhou Bin;Cui Anning;Zhu Cheng;Huang Run;Zheng Chaogui
The Dajiuhu mire deposit is a sensitive archive of palaeoenvironmental evolution in the East Asian monsoon region. The aim of this study of the elemental geochemistry of a sediment core from Dajiuhu was to improve our understanding of the geochemical behaviour of elements in peat deposits, as well as the environmental and climatic history of the East Asian monsoon region since the Late Pleistocene. We conducted a principal components analysis (PCA) on inorganic geochemical data obtained by ICP‐MS and XRFS from a sediment core spanning the last 16 ka. In addition, spectral analysis was applied to the PC1 score profile to test periodicities. The PCA results suggest that variations in elemental concentrations in the Dajiuhu core are controlled by three main factors: input of inorganic mineral matter, effect of biological processes and a combination of changes in redox conditions and biological processes. Interpretation of the data suggests that monsoon precipitation increased, albeit with significant volatility, during the last deglaciation (16.0–11.3 cal. ka BP). The early Holocene (11.3–9.4 cal. ka BP) was a humid period, and was followed by monsoon deterioration in the early stages of the middle Holocene. A warm and wet climate dominated between 7.0 and 4.2 cal. ka BP, correlating with the Holocene Climatic Optimum. After a two‐step decrease in monsoon precipitation, beginning at 4.2 cal. ka BP, the climate became more arid until 0.9 cal. ka BP, after which humidity once again increased. The spectral analysis revealed statistically significant periodicities of approximately 1480, 360, 316, 204 and 188 years, indicating solar forcing for the East Asian monsoon evolution over millennial to centennial time scales and a link between the East Asian monsoon and North Atlantic climate.
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影响因子：
3
作者：
Huiling Zhang;Kefu Yu;Jian-xin Zhao;Yue‐xing Feng;Yushi Lin;Wei Zhou;Guohui Liu
通讯作者：
Huiling Zhang;Kefu Yu;Jian-xin Zhao;Yue‐xing Feng;Yushi Lin;Wei Zhou;Guohui Liu
青藏高原东部红源泥炭沼泽全新世腐殖化程度对季风气候的响应
影响因子：
3
作者：
Wang, Hua;Hong, Yetang;Lin, Qinghua;Hong, Bing;Zhu, Yongxuan;Wang, Yu;Xu, Hai
通讯作者：
Xu, Hai
影响因子：
3.9
作者：
O. Margalef;N. Cañellas-Boltà;Sergi Pla‐Rabès;S. Giralt;J. Pueyo;H. Joosten;V. Rull;T. Buchaca;A. Hernández;B. Valero-Garcés;A. Moreno;A. Sáez
通讯作者：
O. Margalef;N. Cañellas-Boltà;Sergi Pla‐Rabès;S. Giralt;J. Pueyo;H. Joosten;V. Rull;T. Buchaca;A. Hernández;B. Valero-Garcés;A. Moreno;A. Sáez
DOI：
10.4135/9781446247501.n3167
发表时间：
2021
期刊：
Encyclopedic Dictionary of Archaeology
影响因子：
--
作者：
Petra Zahajská;P. Frings;Françoise Gaspard;Sophie Opfergelt;Johanna Stadmark;Sherilyn C. Fritz;Rosine Cartier;Daniel J. Conley
通讯作者：
Petra Zahajská;P. Frings;Françoise Gaspard;Sophie Opfergelt;Johanna Stadmark;Sherilyn C. Fritz;Rosine Cartier;Daniel J. Conley
影响因子：
56.9
作者：
Shotyk, W;Weiss, D;Van der Knaap, WO
通讯作者：
Van der Knaap, WO