大江大河河流分段方法探讨  

Methodology study on segmentation of large rivers

作　　者：董耀华[1] 汪秀丽[2] 

机构地区：[1]长江科学院水利部江湖治理与防洪重点实验室,湖北武汉430010 [2]武汉大学图书馆,湖北武汉430072

出　　处：《人民长江》2015年第4期10-15,共6页Yangtze River

基　　金："十二五"国家科技支撑计划课题"山洪灾害监测预警关键技术及集成研究与示范"(2012BAK10B04);国家自然科学基金"三峡运行后坝下游弯曲分汊河道演变规律研究"(51379018)

摘　　要：河流分段方法研究属于河流动力学与河流地貌学的交叉研究领域,其研究成果是流域规划、河流管理与河道治理等的重要基础与依据。基于Schumm河流分区理论,总结了"三河段分段法";基于地貌临界条件,提出了"控制节点分段法";综合提出并推荐了"最大五河段分段法"。根据十大江河河流分段实践,检验了"最大五河段分段法"的适用性与有效性。分析结果表明,该方法与十大江河的分段实践吻合一致,值得推荐。The study of large river segmentation method belongs to the cross field of river dynamics and fluvial geomorphology, and the research achievement is an important basis for river basin planning, river management and regulation. Based on Sehumm＇ s theory on river segmentation, the 3 - reach river segmentation method is firstly summarized. According to the theory of morpho- logical threshold condition, the method of control - node river segmentation is developed. The method of the maximum 5 - reach river segmentation is proposed and recommended through comprehensive consideration. The applicability and feasibility of the maximum 5 - reach river segmentation method is compared and checked by the river segmentation practice of 10 large rivers in the world. The results show that the maximum 5 - reach river segmentation method is well consistent with the segmentation practice of the I0 large rivers and therefore is worth recommending.

关 键 词：最大五河段分段法 控制节点分段法 三河段分段法 Schumm河流分区理论 地貌临界条件 

分 类 号：TV211.1[水利工程—水文学及水资源]