The geo-pattern of course shifts of the Lower Yellow River
文献类型：SCI/SSCI论文
| 作者 | Wang Y. J. ; Su Y. J. |
| 发表日期 | 2011 |
| 关键词 | Lower Yellow River course shift visualization geo-pattern channel planform change dee meanders assam india gis |
| 英文摘要 | The changing pattern of the Lower Yellow River (LYR) obtained from the traditional studies, which mainly did literal analysis based on historical documents related to the LYR are too macroscopic and absent of intuitiveness. This paper integrates all the records in historical documents related to course shift, flood and overflow of the last 3000 years and stores them in a GIS database. Then, all the data will be visualized in the form of map, which is helpful to show and understand the rules those events conform more intuitively and accurately. Taking these data as foundation, this study summarizes characteristics of the LYR's courses and influence scope, and classifies them both into three types; divides the flow directions of the LYR's courses into two periods, and proposes its changing pattern; concludes the characteristic of diversion points of courses shift events; calculates the velocity of courses shifts, gradient and sinuosity, and analyzes their changing patterns. Finally, this study classifies factors that may influence the occurrence of a course shift into two types: the internal factors, such as sediment rate, gradient and sinuosity of the river, and the external factors, such as precipitation and human activities. |
| 出处 | Journal of Geographical Sciences |
| 卷 | 21 |
| 期 | 6 |
| 页 | 1019-1036 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1009-637X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/22832]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Wang Y. J.,Su Y. J.. The geo-pattern of course shifts of the Lower Yellow River. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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