Geomorphologic patterns of dune networks in the Tengger Desert, China
文献类型：期刊论文
| 作者 | Wen Qing1; Dong Zhibao1,2 |
| 刊名 | JOURNAL OF ARID LAND
 |
| 出版日期 | 2016-10-01 |
| 卷号 | 8期号:5页码:660-669 |
| 关键词 | aeolian geomorphology dune networks geomorphological parameters geomorphic pattern analysis Tengger Desert |
| ISSN号 | 1674-6767 |
| DOI | 10.1007/s40333-016-0092-x |
| 通讯作者 | Dong Zhibao(zbdong@lzb.ac.cn) |
| 英文摘要 | Dune networks are widely distributed in the world's deserts, which include primary ridges and secondary ridges. However, they have not been sufficiently studied in a systematic manner and their origins and spatial and morphological characteristics remain unclear. To provide information on the geomorphology of dune networks, we analyze the software geomorphologic patterns of the dune networks in China's Tengger Desert using matrix and laboratory to process remote-sensing images. Based on analysis of image features and their layout in a topographic map, we identify two types of dune networks (square and rectangular dune networks) with different size and morphological structures in the Tengger Desert. Four important geomorphic pattern parameters, ridge length, spacing, orientation and defect density, are analyzed. The length of primary ridges of dune networks decreases from northwest of the desert to the southeast, resulting an increasing spacing and a transition from rectangular dune networks to square dune networks. Wind regime and sediment supply are responsible for the variation in pattern parameters. We use the spacing and defect density data to estimate the construction time of dune networks and found that the dune networks in the Tengger Desert formed since about 1.3 ka BP. |
| 收录类别 | SCI |
| WOS关键词 | NW CHINA ; BEDFORMS |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000378931000002 |
| 出版者 | SPRINGER HEIDELBERG |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557225 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Dong Zhibao |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Shaanxi Normal Univ, Dept Geog, Xian 710062, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen Qing,Dong Zhibao. Geomorphologic patterns of dune networks in the Tengger Desert, China[J]. JOURNAL OF ARID LAND,2016,8(5):660-669. |
| APA | Wen Qing,&Dong Zhibao.(2016).Geomorphologic patterns of dune networks in the Tengger Desert, China.JOURNAL OF ARID LAND,8(5),660-669. |
| MLA | Wen Qing,et al."Geomorphologic patterns of dune networks in the Tengger Desert, China".JOURNAL OF ARID LAND 8.5(2016):660-669. |
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来源：寒区旱区环境与工程研究所
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