Potential links of gobi, dust, and desertification: A comprehensive understanding from aeolian landform evolution in a middle-latitude desert
文献类型：期刊论文
| 作者 | Zhu, Bing-Qi; Zhang, Jia-Xin; Sun, Chen |
| 刊名 | SEDIMENTARY GEOLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 428页码:16 |
| 关键词 | Aeolian landforms Loess deposits Gobi sediments Dust storms Desertification Climate change Middle latitude |
| ISSN号 | 0037-0738 |
| DOI | 10.1016/j.sedgeo.2021.106049 |
| 通讯作者 | Zhu, Bing-Qi(zhubingqi@igsnrr.ac.cn) |
| 英文摘要 | Knowledge of desert landscape evolution and related aeolian deposits will increase our understanding of the earth system. Desertification and dust cycle in the middle latitudes are an important part of global change and an important window to understand the earth's climate system. The Hexi Corridor is one of the dust storm cen-ters in northern China and Asia, but the reason of desertification process and its relationship with local aeolian landforms and deposits are still unclear. Based on the extensive survey of aeolian landforms and the analysis of elemental, depositional, and structural properties of diverse aeolian sediments (dune sands, Gobi silts and dust loess), this study explored the genetic connection between dune sands in the study area, gobi erosible silts in the upwind area and dust storms in the downwind area and their relationship with desertification in the Hexi Corridor. The analytical results suggest that the dune sands in the Hexi Corridor are weakly related to the gobi sediments in the upwind area and the dust loess in the downwind area from the perspective of genetic connec-tion, but there is a close relationship between gobi and dust sediments. On the decadal scale, the change trend of dust storm events in the study area is consistent with the variational process of the regional-scale desertification, indicating that the dust storm is an effective indicator of desertification process in the study area on a large scale. Based on the genetic connection and differences between the dust storm, gobi topsoil and dune sand and com-bined with other environmental parameters, we identified two different processes of desertification in the Hexi Corridor. One is an abnormal, reverse desertification process that occurred on a regional scale, which is in-consistent with the change of global climate and global dust storms. The other is an increased desertification pro-cess that occurred in the oasis area on a local scale, which has no relationship to global and regional climate change but is closely related to the decline of groundwater level in the oasis area. This provides good evidence for us to understand the causes of different landsurface processes that occurred in a unified environment in mid-dle latitudes. (c) 2021 Elsevier B.V. All rights reserved. |
| WOS关键词 | QILIAN SHAN CHINA ; GRAIN-SIZE ; WIND EROSION ; HEXI CORRIDOR ; MOJAVE DESERT ; ENVIRONMENTAL-CHANGE ; NEBKHA DEVELOPMENT ; TAKLAMAKAN DESERT ; TIBETAN PLATEAU ; NORTHERN CHINA |
| 资助项目 | National Natural Science Foundation of China[41930640] ; National Natural Science Foundation of China[41771014] ; Project of the Second Comprehensive Scientific Investigation on the Qinghai Tibet Plateau[2019QZKK1003] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000779511600002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Project of the Second Comprehensive Scientific Investigation on the Qinghai Tibet Plateau |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/174904]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhu, Bing-Qi |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Bing-Qi,Zhang, Jia-Xin,Sun, Chen. Potential links of gobi, dust, and desertification: A comprehensive understanding from aeolian landform evolution in a middle-latitude desert[J]. SEDIMENTARY GEOLOGY,2022,428:16. |
| APA | Zhu, Bing-Qi,Zhang, Jia-Xin,&Sun, Chen.(2022).Potential links of gobi, dust, and desertification: A comprehensive understanding from aeolian landform evolution in a middle-latitude desert.SEDIMENTARY GEOLOGY,428,16. |
| MLA | Zhu, Bing-Qi,et al."Potential links of gobi, dust, and desertification: A comprehensive understanding from aeolian landform evolution in a middle-latitude desert".SEDIMENTARY GEOLOGY 428(2022):16. |
入库方式： OAI收割
来源：地理科学与资源研究所
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。