Recent palaeolimnological change recorded in Lake Xiaolongwan, northeast China: Climatic versus anthropogenic forcing
文献类型：期刊论文
| 作者 | Panizzo, Virginia N.1; Mackay, Anson W.1; Rose, Neil L.1; Rioual, Patrick2; Leng, Melanie J.3,4 |
| 刊名 | QUATERNARY INTERNATIONAL
 |
| 出版日期 | 2013-03-21 |
| 卷号 | 290页码:322-334 |
| ISSN号 | 1040-6182 |
| DOI | 10.1016/j.quaint.2012.07.033 |
| 文献子类 | Article |
| 英文摘要 | Lake Xiaolongwan is a closed maar lake located in the Long Gang Volcanic Field, northeast China. Core XLW2 was collected in 2007 from the central region of the lake and provides a palaeoecological reconstruction over the past ca. 130 years (dated using radiometric methods: Pb-210 and Cs-137). Diatom floristic changes and catchment productivity (carbon isotope ratios) were analysed within the core. Indicators of atmospheric pollution (XRF and SCP inventories) were also measured. Results show a marked transition from a dominant benthic assemblage to a planktonic one (increasing P:B ratios) starting after ca. 1940 AD, becoming most prominent after ca. 1980 AD (P:B > 1). Most notable floristic changes result from the increase in the planktonic species Discostella woltereckii. These changes are concomitant with increased temperature trends from the region and reconstructed temperature anomalies of the Northern Hemisphere. SCP concentrations and flux rates also increase after ca. 1950 AD, with highest values seen at ca. 1980 AD after which values decline. Normalised elemental geochemistry (e.g. Pb/Ti) also show marked changes after ca. 1970 AD, most likely derived from atmospheric deposition of Pb. The recent increase in D. woltereckii precedes anthropogenic contamination (Pb/Ti) at the site and persists after the decline in SCP concentrations. This suggests that the recent increases are driven by increased mean annual temperature trends. These temperature trends may be manifested as changes in ice cover persistence, a longer growing season and/or increased DOC at Lake Xiaolongwan: conditions for which planktonic species have a more competitive advantage. (C) 2012 Elsevier Ltd and INQUA. All rights reserved. |
| WOS关键词 | DISSOLVED ORGANIC-CARBON ; RECENT ENVIRONMENTAL-CHANGES ; TIBETAN PLATEAU ; SHIELD LAKES ; TEMPERATURE VARIATIONS ; NITROGEN DEPOSITION ; VOLCANIC FIELD ; ARCTIC LAKES ; HUMAN IMPACT ; 2 MILLENNIA |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000316769500023 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; NERC Isotope Geosciences Laboratory (NIGL) ; NERC Isotope Geosciences Laboratory (NIGL) ; CASE studentship ; CASE studentship ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; NERC Isotope Geosciences Laboratory (NIGL) ; NERC Isotope Geosciences Laboratory (NIGL) ; CASE studentship ; CASE studentship ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; NERC Isotope Geosciences Laboratory (NIGL) ; NERC Isotope Geosciences Laboratory (NIGL) ; CASE studentship ; CASE studentship ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; National Environmental Research Council (NERC)(NER/S/A/2006/14046) ; NERC Isotope Geosciences Laboratory (NIGL) ; NERC Isotope Geosciences Laboratory (NIGL) ; CASE studentship ; CASE studentship |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/86472]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Panizzo, Virginia N. |
| 作者单位 | 1.UCL, Environm Change Res Ctr, Dept Geog, London WC1E 6BT, England 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 3.Univ Leicester, Dept Geol, Leicester LE1 7RH, Leics, England 4.British Geol Survey, NERC Isotope Geosci Lab, Nottingham NG12 5GG, England |
| 推荐引用方式 GB/T 7714 | Panizzo, Virginia N.,Mackay, Anson W.,Rose, Neil L.,et al. Recent palaeolimnological change recorded in Lake Xiaolongwan, northeast China: Climatic versus anthropogenic forcing[J]. QUATERNARY INTERNATIONAL,2013,290:322-334. |
| APA | Panizzo, Virginia N.,Mackay, Anson W.,Rose, Neil L.,Rioual, Patrick,&Leng, Melanie J..(2013).Recent palaeolimnological change recorded in Lake Xiaolongwan, northeast China: Climatic versus anthropogenic forcing.QUATERNARY INTERNATIONAL,290,322-334. |
| MLA | Panizzo, Virginia N.,et al."Recent palaeolimnological change recorded in Lake Xiaolongwan, northeast China: Climatic versus anthropogenic forcing".QUATERNARY INTERNATIONAL 290(2013):322-334. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。