|
|||||
|
|
Historical desertification of the Mu Us Sandy Land: A perspective from the Beidachi section |
|
| Authors: | YinZhou Huang NaiAng Wang HongYi Cheng Ning Ma and TingTing Lai |
| Institution: | 1. College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China 2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China;College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China;College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China;College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China;College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China |
| Abstract: | Historical desertification of the Mu Us Sandy Land is linked to both environmental changes and anthropogenic activities. This paper reports on an analysis of grain size parameters as indicative of such changes in the southwestern area of the Mu Us Sandy Land. Combined with analysis of chronologies and historical records, our results indicate that Beidachi Lake and a nearby seasonal river have retreated continuously in history and that sand dunes appeared at approximately the end of the Ming dynasty. This study sheds new light on the understanding of spatial-temporal changes of the interior Mu Us Sandy Land in history and has great significance in revealing environmental changes of the interior region of the Mu Us Sandy Land. |
| Keywords: | Mu Us Sandy Land historical desertification Beidachi section historical texts water environment change |
| 本文献已被 CNKI 等数据库收录！ | |
| 点击此处可从《寒旱区科学》浏览原始摘要信息 | |
| 点击此处可从《寒旱区科学》下载免费的PDF全文 | |