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| 黄河下游河道改道的地理变化特征(英文) | |
| 引用本文： | 王英杰,苏艳军. 黄河下游河道改道的地理变化特征(英文)[J]. 地理学报(英文版), 2011, 21(6): 1019-1036. DOI: 10.1007/s11442-011-0897-7 |
| 作者姓名： | 王英杰 苏艳军 |
| 作者单位： | State Key Laboratory of Resources and Environmental Information System;Institute of Geographic Sciences and Natural Resources Research;CAS;Graduate University of Chinese Academy of Sciences; |
| 基金项目： | Project supported by the Ministry of Science and Technology of China, No.2009BAH50B01;No.2008BAK50B05 |
| 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of the Lower Yellow River (LYR) obtained from the traditional studies, which mainly did literal analysis based on historical documents related to the LYR are too macroscopic and absent of intuitiveness. This paper integrates all the records in historical documents related to course shift, flood and overflow of the last 3000 years and stores them in a GIS database.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. |
| 关 键 词： | Lower Yellow River course shift visualization geo-pattern |
The geo-pattern of course shifts of the Lower Yellow River |
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| Yingjie Wang,Yanjun Su. The geo-pattern of course shifts of the Lower Yellow River[J]. Journal of Geographical Sciences, 2011, 21(6): 1019-1036. DOI: 10.1007/s11442-011-0897-7 | |
| Authors: | Yingjie Wang Yanjun Su |
| Affiliation: | 1. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China 2. State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
| Abstract: | 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. |
| Keywords: | Lower Yellow River course shift visualization geo-pattern |
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