| Quantitative relationships between magnetic enhancement of modern soils and climatic variables over the Chinese Loess Plateau | |
| Song, Yang1,2; Hao, Qingzhen1; Ge, Junyi3; Zhao, De'ai4; Zhang, Yan1,2; Li, Qin1,2; Zuo, Xinxin1,2; Lu, Yanwu1,2; Wang, Pan5; Hao, QZ (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, 19 Beitucheng Xi Rd, Beijing 100029, Peoples R China. | |
| 2014-06-17 | |
| 发表期刊 | QUATERNARY INTERNATIONAL
 |
| ISSN | 1040-6182 |
| 卷号 | 334期号:1页码:119-131 |
| 文章类型 | Article |
| 摘要 | Environmental magnetism has been widely employed to reconstruct past climate changes on the Chinese Loess Plateau (CLP), and several climofunctions based on the magnetic properties of loess have been developed. However, systematic investigation of the quantitative relationship between topsoil magnetic enhancement and modern climate remains uncommon. In this study, we obtained surface soil samples from 257 sites over the CLP and adjacent regions. From this set, we used 180 samples from sites unaffected by potential contamination to investigate the relationship between the commonly measured magnetic properties of magnetic susceptibility and magnetic remanence and modern climatic variables. The spatial distribution of the results demonstrates a strong NW SE gradient of the magnetic enhancement of surface soils. The results of more detailed magnetic parameters indicate that pedogenic viscous superparamagnetic and stable single-domain particles are mainly responsible for the magnetic enhancement of the soils in the studied region; and that the magnetic grain-size distribution of the ferrimagnetic components of pedogenic origin remains almost constant, independent of pedogenic intensity. The uniform mechanism of magnetic enhancement, mainly linked with the concentration of the pedogenic components rather than with variations in magnetic grain-size, decreases the level of ambiguity in climate reconstructions based on magnetic measurements of Chinese loess. Statistical analyses, including correlation, Principal Component Analysis (PCA) and multiple regression analysis, suggest that annual rainfall rather than temperature exerts the dominant effect on soil magnetic enhancement. Finally, we used the results to develop several transfer functions to reconstruct mean annual precipitation (MAP). Transfer functions based on frequency-dependent susceptibility (chi(fd)) and anhysteretic remanent magnetization (chi(ARM)) provide the most reliable estimates of MAP. This study significantly improves the understanding of the relationship between soil magnetic properties and climate. (C) 2013 Elsevier Ltd and INQUA. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 关键词[WOS] | LOW-FIELD SUSCEPTIBILITY ; GRAIN-SIZE DISTRIBUTION ; PALEOSOL SEQUENCES ; PALEOCLIMATIC IMPLICATIONS ; RUSSIAN STEPPE ; PEDOGENESIS ; SAMPLES ; PROXY ; VARIABILITY ; DEPENDENCE |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Basic Research Program of China (973 Program) [2010CB950204]; Ministry of Land and Resources [201211077]; National Natural Science Foundation of China [41172323] |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| WOS记录号 | WOS:000338817800013 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/5152 |
| 专题 | 古人类及旧石器研究室 |
| 通讯作者 | Hao, QZ (reprint author), Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, 19 Beitucheng Xi Rd, Beijing 100029, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 4.China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China 5.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Yang,Hao, Qingzhen,Ge, Junyi,et al. Quantitative relationships between magnetic enhancement of modern soils and climatic variables over the Chinese Loess Plateau[J]. QUATERNARY INTERNATIONAL,2014,334(1):119-131. |
| APA | Song, Yang.,Hao, Qingzhen.,Ge, Junyi.,Zhao, De'ai.,Zhang, Yan.,...&Hao, QZ .(2014).Quantitative relationships between magnetic enhancement of modern soils and climatic variables over the Chinese Loess Plateau.QUATERNARY INTERNATIONAL,334(1),119-131. |
| MLA | Song, Yang,et al."Quantitative relationships between magnetic enhancement of modern soils and climatic variables over the Chinese Loess Plateau".QUATERNARY INTERNATIONAL 334.1(2014):119-131. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Quantitative relatio（5064KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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。
修改评论