Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s40333-014-0064-y |
Early Holocene environment at a key location of the northwest boundary of the Asian summer monsoon: a synthesis on chronologies of Zhuye Lake, Northwest China | |
Li, Yu; Wang, NaiAng![]() | |
通讯作者 | Li, Yu |
来源期刊 | JOURNAL OF ARID LAND
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ISSN | 1674-6767 |
EISSN | 2194-7783 |
出版年 | 2014 |
卷号 | 6期号:5页码:511-528 |
英文摘要 | The intensified monsoon increases summer rainfall and creates wet conditions in the Asian summer monsoon region during the early Holocene. Along with millennial-scale changes of the monsoon intensity, it is still unclear whether the boundary of the monsoon region changes according to monsoon variability. Investigations into the early Holocene environment in monsoon marginal zones are crucial for understanding the monsoon boundary changes. Zhuye Lake is located at the northwest edge of the Asian summer monsoon, the northern Qilian Mountains, which are less affected by modern summer monsoon water vapor. Previous studies have reached different conclusions regarding the early Holocene climatic and environmental changes based on different dating methods (C-14 and OSL (optically stimulated luminescence)) and materials (shells, carbonate, pollen concentrates and bulk organic carbon). In this study, we synthesized 102 C-14 dates and 35 OSL dates from ten Holocene sedimentary sections and ten paleo-shorelines in the lake basin. A comparison between ages from different dating methods and materials generally shows that carbon reservoir effects are relatively slight in Zhuye Lake while the disordered chronologies are mainly related to the erosion processes and reworking effects. In addition, proxy data, including lithology, pollen, total organic carbon and carbonate, were collected from different sites of Zhuye Lake. According to the new synthesis, the early Holocene environment was relatively humid, associated with high runoff and lake water levels. The result indicates that the monsoon boundary moves to the north during the period of the intensified monsoon. A typical arid-area lake was formed during the mid-Holocene when carbonate accumulation and high organic matter contents were the main features of this period. The lake retreated strongly during the late Holocene, showing a drought trend. Overall, the lake evolution is generally consistent with the Holocene Asian summer monsoon change, showing the monsoon influence to monsoon marginal zones. |
英文关键词 | the early Holocene C-14 dating OSL dating lacustrine sediments Asian summer monsoon monsoon marginal zones |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000336387600001 |
WOS关键词 | SHIYANG RIVER DRAINAGE ; TENGGER DESERT ; PALAEOLAKE EVOLUTION ; MOISTURE EVOLUTION ; MILLENNIAL-SCALE ; HIGH-RESOLUTION ; CLIMATE CHANGES ; NORTHERN CHINA ; POLLEN ; RECORD |
WOS类目 | Environmental Sciences |
WOS研究方向 | Environmental Sciences & Ecology |
来源机构 | 兰州大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/183098 |
作者单位 | Lanzhou Univ, Coll Earth & Environm Sci, Ctr Hydrol Cycle & Water Resources Arid Reg, Lanzhou 730000, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Yu,Wang, NaiAng,Zhang, ChengQi,et al. Early Holocene environment at a key location of the northwest boundary of the Asian summer monsoon: a synthesis on chronologies of Zhuye Lake, Northwest China[J]. 兰州大学,2014,6(5):511-528. |
APA | Li, Yu,Wang, NaiAng,Zhang, ChengQi,&Wang, Yue.(2014).Early Holocene environment at a key location of the northwest boundary of the Asian summer monsoon: a synthesis on chronologies of Zhuye Lake, Northwest China.JOURNAL OF ARID LAND,6(5),511-528. |
MLA | Li, Yu,et al."Early Holocene environment at a key location of the northwest boundary of the Asian summer monsoon: a synthesis on chronologies of Zhuye Lake, Northwest China".JOURNAL OF ARID LAND 6.5(2014):511-528. |
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Early Holocene envir(3011KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
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