Dune dynamics in the southern edge of Dunhuang Oasis and implications for the oasis protection
文献类型：期刊论文
| 作者 | An Zhi-shan; Zhang Ke-cun; Tan Li-hai; Zhang Hu; Niu Bai-cheng |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:10页码:2172-2181 |
| 关键词 | Dunhuang Oasis Dune dynamics 3-D laser scanner Shield dune Mega pyramid dune |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4723-2 |
| 文献子类 | Article |
| 英文摘要 | The survival of Dunhuang Oasis is largely determined by the evolution of sand dunes in the southern edge of the oasis, mainly composed of shield dunes and mega pyramid dunes, which occupy two-thirds and one-third of the area, respectively. However, few studies have focused on dynamics of these dunes, especially in terms of quantification. So the theoretical basis of sand-control engineering is relatively limited. Here we present the characteristics of dune dynamics of a shield dune and mega pyramid dune in the southern edge of Dunhuang Oasis during April 2014-April 2016 based on measurement data of a 3-D laser scanner. Results indicate that the volume of the shield dune decreased during the monitoring period of two years, and the gravity centers of the monitored shield dune moved windward, indicating that sand was transported toward the oasis. Conversely, the dune volume of the mega pyramid dune increased and the gravity center presented no prominent movement, indicating that the mega pyramid dune was relatively stable and its migration toward the oasis was not notable. Thus, compared with mega pyramid dunes, shield dunes in the southern edge of Dunhuang Oasis are identified as a more significant sand source endangering the protection of the oasis, and sand-control engineering should mainly focus on these shield dunes. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000447295900007 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/46324]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.10 |
| 推荐引用方式 GB/T 7714 | An Zhi-shan,Zhang Ke-cun,Tan Li-hai,et al. Dune dynamics in the southern edge of Dunhuang Oasis and implications for the oasis protection[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(10):2172-2181. |
| APA | An Zhi-shan,Zhang Ke-cun,Tan Li-hai,Zhang Hu,&Niu Bai-cheng.(2018).Dune dynamics in the southern edge of Dunhuang Oasis and implications for the oasis protection.JOURNAL OF MOUNTAIN SCIENCE,15(10),2172-2181. |
| MLA | An Zhi-shan,et al."Dune dynamics in the southern edge of Dunhuang Oasis and implications for the oasis protection".JOURNAL OF MOUNTAIN SCIENCE 15.10(2018):2172-2181. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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