Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1029/2019GL084177 |
| The Imprint of Vegetation on Desert Dune Dynamics | |
| Lee, Dylan B.1; Ferdowsi, Behrooz2; Jerolmack, Douglas J.1 | |
| 通讯作者 | Jerolmack, Douglas J. |
| 来源期刊 | GEOPHYSICAL RESEARCH LETTERS
 |
| ISSN | 0094-8276 |
| EISSN | 1944-8007 |
| 出版年 | 2019 |
| 卷号 | 46期号:21页码:12041-12048 |
| 英文摘要 | Here we demonstrate the qualitative and quantitative influence that vegetation has on stabilizing desert dunes. We use topographic data to isolate translation and deformation of dune patterns, upwind of and across a sharp gradient of vegetation, at White Sands dune field, New Mexico. Barchanoid dunes are unstable due to an aerodynamic surface wave instability. The dynamics of vegetated parabolic dunes are different; deformation becomes localized, and random, once plant density reaches a critical value associated with the barchanoid-parabolic transition. Plants stabilize dunes not only by slowing them down but also by shutting off the fundamental mechanism that generates new sand waves and destabilizes dunes. Increasing plant density downwind increases vegetation-induced form drag and results in decreasing dune migration rate. We suggest that similar biological modulation of pattern-forming instabilities may also occur in other landscapes. |
| 英文关键词 | dunes aeolian geomorphology White Sands deformation |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA |
| 开放获取类型 | hybrid |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000496220900001 |
| WOS关键词 | WHITE SANDS ; FIELD PATTERN ; GEOMORPHOLOGY ; FEEDBACKS ; EVOLUTION |
| WOS类目 | Geosciences, Multidisciplinary |
| WOS研究方向 | Geology |
| EI主题词 | 2019-11-13 |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/310843 |
| 作者单位 | 1.Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA; 2.Princeton Univ, Dept Geosci, Princeton, NJ 08544 USA |
| 推荐引用方式 GB/T 7714 | Lee, Dylan B.,Ferdowsi, Behrooz,Jerolmack, Douglas J.. The Imprint of Vegetation on Desert Dune Dynamics[J],2019,46(21):12041-12048. |
| APA | Lee, Dylan B.,Ferdowsi, Behrooz,&Jerolmack, Douglas J..(2019).The Imprint of Vegetation on Desert Dune Dynamics.GEOPHYSICAL RESEARCH LETTERS,46(21),12041-12048. |
| MLA | Lee, Dylan B.,et al."The Imprint of Vegetation on Desert Dune Dynamics".GEOPHYSICAL RESEARCH LETTERS 46.21(2019):12041-12048. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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