The Fractal Characteristics of Drainage Networks and Erosion Evolution Stages of Ten Kongduis in the Upper Reaches of the Yellow River, China
文献类型：期刊论文
| 作者 | Yang Hui; Shi Changxing |
| 刊名 | Journal of Resources and Ecology
 |
| 出版日期 | 2017 |
| 卷号 | 8期号:2页码:165 |
| 关键词 | 十大孔兑 水系分维数 径流模数 产沙模数 侵蚀发育阶段 |
| ISSN号 | 1674-764X |
| 英文摘要 | The fractal characteristics of drainage in the ten kongduis of the upper Yellow River were obtained using the box counting dimension, and the evolution stages of the watershed topography were defined by different ranges of the fractal dimensions of river networks (D_g). The results show that the fractal scaleless range of the Maobula River is 20–370 m based on a combination of artificial judgment, correlation coefficient test and fitting error. Other kongduis show good fractal characteristics in this fractal scaleless range as well. The box counting dimension can be used as a quantitative index of watershed topography fractal characteristics. The fractal dimension of stream networks is independent of the threshold contributing area used for extracting the drainage networks from the DEM. The values of D_g in the upper ten kongduis are in the range of 1.08-1.14. Both the runoff yield and the sediment yield are positively and linearly related with D_g. The positive relation between the sediment yield and D_g reflects the effect of landform features on sediment yield in the young and/or mature stages of landform evolution of the study area. By revising the critical value of D_g, the value of D_g of the basin in the young evolution stage is less than 1.06, while it is more than 1.06 for the basin in mature or old evolution stage. The upper ten kongduis are in the mature stage of landform evolution. |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/155371]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 作者单位 | Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Yang Hui,Shi Changxing. The Fractal Characteristics of Drainage Networks and Erosion Evolution Stages of Ten Kongduis in the Upper Reaches of the Yellow River, China[J]. Journal of Resources and Ecology,2017,8(2):165. |
| APA | Yang Hui,&Shi Changxing.(2017).The Fractal Characteristics of Drainage Networks and Erosion Evolution Stages of Ten Kongduis in the Upper Reaches of the Yellow River, China.Journal of Resources and Ecology,8(2),165. |
| MLA | Yang Hui,et al."The Fractal Characteristics of Drainage Networks and Erosion Evolution Stages of Ten Kongduis in the Upper Reaches of the Yellow River, China".Journal of Resources and Ecology 8.2(2017):165. |
入库方式： OAI收割
来源：地理科学与资源研究所
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