| Paleoenvironment change and its impact on carbon and nitrogen accumulation in the Zoige wetland, northeastern Qinghai-Tibetan Plateau over the past 14,000 years | |
| Zeng, Mengxiu1; Zhu, Cheng1; Song, Yougui2; Ma, Chunmei1; Yang, Zhenjing3 | |
| 2017-04-01 | |
| 发表期刊 | GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
 |
| 卷号 | 18期号:4页码:1775-1792 |
| 文章类型 | Article |
| 摘要 | As the largest alpine wetland and peat deposition area in China, the Zoige wetland is climatically sensitive. The organic matter (OM) in peat stores copious environmental information. Here we report new data on the organic geochemistry of a 4.5 m peat profile HY2014 from southern Zoige wetland. Based on closely spaced accelerator mass spectrometry (AMS) C-14 dating, we established a high-resolution geochronological framework beginning at 14,057 a BP. Moreover, we estimated the sedimentation flux of TOC and TN (SFs) and their influencing factors. Before 10,916 a BP, the lake shrunk and peat began to develop under cold and dry conditions, and SFs were at their lowest values due to low productivity. More OM originated from hydrophyte and marsh plants. From 10,916 to 3050 a BP, peat was widely and well developed, and the climate was warm and humid, despite a cooling and drying trend. The HY2014 profile experienced an optimum climate during 10,91626000 a BP, when SFs had the highest values that benefited from high productivity, and OM mainly originated from terrestrial plants. After 3050 a BP, the climate was the coldest and driest. The high SFs over the past 2000 a BP were mainly resulted from the low decomposition rate. The plant community, primary productivity, and decomposition rate were closely linked with the temporal variation of SFs. The environment change was mainly controlled by summer solar insolation, and the Zoige wetland was significantly influenced by the Indian summer monsoon. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1002/2016GC006718 |
| 关键词[WOS] | INDIAN-SUMMER MONSOON ; NORTH-ATLANTIC CLIMATE ; HOLOCENE VEGETATION HISTORY ; EAST-ASIAN MONSOON ; LAST 12,000 YEARS ; LAKE-SEDIMENTS ; ORGANIC GEOCHEMISTRY ; SOUTHWESTERN CHINA ; YUNNAN PROVINCE ; HIGH-RESOLUTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000403478500026 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/5459 |
| 专题 | 古环境研究室 |
| 作者单位 | 1.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China 3.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Mengxiu,Zhu, Cheng,Song, Yougui,et al. Paleoenvironment change and its impact on carbon and nitrogen accumulation in the Zoige wetland, northeastern Qinghai-Tibetan Plateau over the past 14,000 years[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2017,18(4):1775-1792. |
| APA | Zeng, Mengxiu,Zhu, Cheng,Song, Yougui,Ma, Chunmei,&Yang, Zhenjing.(2017).Paleoenvironment change and its impact on carbon and nitrogen accumulation in the Zoige wetland, northeastern Qinghai-Tibetan Plateau over the past 14,000 years.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,18(4),1775-1792. |
| MLA | Zeng, Mengxiu,et al."Paleoenvironment change and its impact on carbon and nitrogen accumulation in the Zoige wetland, northeastern Qinghai-Tibetan Plateau over the past 14,000 years".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 18.4(2017):1775-1792. |
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| Paleoenvironment cha（3687KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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