Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley
文献类型：期刊论文
| 作者 | Feng, Yuxiang1; Mu, Hongli1,2; Qin, Fachao1; Deng, Qingchun1; Liu, Hui1; Zhang, Bin1; Luo, Mingliang1; Liu, Shoujiang1; Liu, Gangcai3
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| 刊名 | PHYSICAL GEOGRAPHY
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| 出版日期 | 2017 |
| 卷号 | 38期号:5页码:448-469 |
| 关键词 | Morphological Characteristics Gully Cross-section Modeling Dry-hot Valley |
| ISSN号 | 0272-3646 |
| DOI | 10.1080/02723646.2017.1306386 |
| 通讯作者 | Bin Zhang |
| 英文摘要 | Characterizing gully cross sections (GCs) is essential for calculating the volume and erosion rate of the gully. However, little research has focused on modeling the morphology of GCs. This study investigated 456 GCs with a laser distance meter located at the mouth, middle, and head of 152 gullies in the Yuanmou Dry-hot Valley of China; mapped them with AutoCAD software; fitted them with 2nd-6th degree polynomial functions, and discussed the correlation between the coefficients and the morphology of GCs. The results showed that: (1) using a 2nd-degree polynomial function (y=ax(2)+bx+c) to describe the morphology of GCs produced a better result than other polynomial functions; (2) the coefficient a of 2nd-degree polynomial function was correlated with depth (r=-0.226, p<0.01), gradient (r=0.545, p<0.01), and activities; and (3) the symmetry axis (-b/2a) of 2nd-degree polynomial function increased with gully change from left-deflection to right-skewed, and the absolute value showed the asymmetrical degree (r=0.216, p<0.01). This study will not only help to understand the morphology and evolution of gullies, but will also provide a scientific basis for prevention of gully erosion. |
| 语种 | 英语 |
| WOS记录号 | WOS:000407552700004 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/19030]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.China West Normal Univ, Sch Land & Resources, Nanchong, Peoples R China 2.Beijing Normal Univ, Sch Geog, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Feng, Yuxiang,Mu, Hongli,Qin, Fachao,et al. Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley[J]. PHYSICAL GEOGRAPHY,2017,38(5):448-469. |
| APA | Feng, Yuxiang.,Mu, Hongli.,Qin, Fachao.,Deng, Qingchun.,Liu, Hui.,...&Liu, Gangcai.(2017).Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley.PHYSICAL GEOGRAPHY,38(5),448-469. |
| MLA | Feng, Yuxiang,et al."Modeling the morphology of gully cross sections in the Yuanmou Dry-hot Valley".PHYSICAL GEOGRAPHY 38.5(2017):448-469. |
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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