Geometry of meandering and braided gravel-bed threads from the Bayanbulak Grassland, Tianshan, P. R. China
文献类型：期刊论文
| 作者 | Metivier, Francois1; Devauchelle, Olivier1; Chauvet, Hugo1; Lajeunesse, Eric1; Meunier, Patrick2; Blanckaert, Koen3; Ashmore, Peter4; Zhang, Zhi5; Fan, Yuting6; Liu, Youcun7 |
| 刊名 | EARTH SURFACE DYNAMICS
 |
| 出版日期 | 2016 |
| 卷号 | 4期号:1页码:273-283 |
| ISSN号 | 2196-6311 |
| DOI | 10.5194/esurf-4-273-2016 |
| 通讯作者 | Metivier, Francois(metivier@ipgp.fr) |
| 英文摘要 | The Bayanbulak Grassland, Tianshan, P. R. China, is located in an intramontane sedimentary basin where meandering and braided gravel-bed rivers coexist under the same climatic and geological settings. We report and compare measurements of the discharge, width, depth, slope and grain size of individual threads from these braided and meandering rivers. Both types of threads share statistically indistinguishable regime relations. Their depths and slopes compare well with the threshold theory, but they are wider than predicted by this theory. These findings are reminiscent of previous observations from similar gravel-bed rivers. Using the scaling laws of the threshold theory, we detrend our data with respect to discharge to produce a homogeneous statistical ensemble of width, depth and slope measurements. The statistical distributions of these dimensionless quantities are similar for braided and meandering threads. This suggests that a braided river is a collection of intertwined threads, which individually resemble those of meandering rivers. Given the environmental conditions in Bayanbulak, we furthermore hypothesize that bedload transport causes the threads to be wider than predicted by the threshold theory. |
| 收录类别 | SCI |
| WOS关键词 | RIVERS ; VEGETATION ; CHANNELS |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000378205500015 |
| 出版者 | COPERNICUS GESELLSCHAFT MBH |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557998 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Metivier, Francois |
| 作者单位 | 1.Univ Paris Diderot, Sorbonne Paris Cite, Inst Phys Globe Paris, CNRS UMR7154, 1 Rue Jussieu, F-75238 Paris 05, France 2.Ecole Normale Super, CNRS UMR8538, Dept Geol, 24 Rue Lhomond, F-75005 Paris, France 3.Chinese Acad Sci, Ecoenvironm Sci Res Ctr, POB 934, Beijing, Peoples R China 4.Univ Western Ontario, Dept Geog, Social Sci Ctr Rm 2322, London, ON N6A 5C2, Canada 5.Chinese Acad Sci, Cold & Arid Reg Environm & Engn & Res Inst, States Key Lab Cryospher Sci, 260 Donggang West Rd, Lanzhou, Peoples R China 6.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi, Peoples R China 7.Tianjin Normal Univ, Key Lab Water Environm & Resource, 393 Binshui West Rd, Tianjin 300387, Peoples R China |
| 推荐引用方式 GB/T 7714 | Metivier, Francois,Devauchelle, Olivier,Chauvet, Hugo,et al. Geometry of meandering and braided gravel-bed threads from the Bayanbulak Grassland, Tianshan, P. R. China[J]. EARTH SURFACE DYNAMICS,2016,4(1):273-283. |
| APA | Metivier, Francois.,Devauchelle, Olivier.,Chauvet, Hugo.,Lajeunesse, Eric.,Meunier, Patrick.,...&Ye, Baisheng.(2016).Geometry of meandering and braided gravel-bed threads from the Bayanbulak Grassland, Tianshan, P. R. China.EARTH SURFACE DYNAMICS,4(1),273-283. |
| MLA | Metivier, Francois,et al."Geometry of meandering and braided gravel-bed threads from the Bayanbulak Grassland, Tianshan, P. R. China".EARTH SURFACE DYNAMICS 4.1(2016):273-283. |
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来源：寒区旱区环境与工程研究所
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