山区河流阶梯-深潭研究应用进展

被引:6
作者
余国安 [1 ,2 ]
黄河清 [2 ]
王兆印 [3 ]
姚治君 [2 ]
机构
[1] 中国水利水电科学研究院
[2] 中国科学院地理科学与资源研究所
[3] 清华大学水沙科学与水利水电工程国家重点实验室
关键词
山区河流; 阶梯-深潭; 研究进展; 应用;
D O I
暂无
中图分类号
P931 [地貌学(地形学)];
学科分类号
0705 ; 070501 ;
摘要
阶梯-深潭是大坡度山区河流常见而又十分重要的河床微地貌形态,河床常由一段陡坡和一段缓坡加上深潭相间连接而成,在河道纵向呈现一系列阶梯状。阶梯-深潭系统能有效耗散水流能量,控制河床侵蚀下切,并维持良好的河流生境和生态,因而是大坡度山区下切河流维持健康稳定的重要河床结构形态。20世纪80年代以来,国外对阶梯-深潭发育的环境条件、阶梯和深潭结构的形态特征和形成机理,以及河流地貌和生态效应等开展了大量研究,研究方法主要为野外调查、室内水槽实验及数学模型等。近年阶梯-深潭系统及相近的河床结构形态已经在山区河流治理上得到应用,并取得良好效果。本文为阶梯-深潭系统近30年研究进展和山区河流治理、修复应用情况的综合述评,并就未来研究方向提出建议。
引用
收藏
页码:42 / 48
页数:7
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