黄河宁蒙河段塌岸侵蚀现场监测及评价研究

被引：2

作者：

代加兵

刘宏远

戴海伦

张科利

机构：

[1] 北京师范大学地理学与遥感科学学院地表过程与资源生态国家重点实验室

来源：

泥沙研究 | 2015年 / 05期

关键词：

河岸崩塌; GPS-RTK; 塌岸量; 塌岸影响因子;

D O I：

10.16239/j.cnki.0468-155x.2015.05.011

中图分类号：

TV147 [河道演变];

学科分类号：

081502 ;

摘要：

河岸崩塌是河流泥沙的重要来源之一,对其崩塌量的监测以及影响因素的研究是理解水沙运移规律、准确预测河流侵蚀淤积状况的基础。通过GPS-RTK测量技术对黄河重点河段(毛不拉河段、陶乐河段)进行汛期和非汛期的定期观测,并提出了河岸崩塌量与土地利用类型、河型、岸高等之间的定性关系。结果表明:GPS-RTK技术在河岸崩塌研究中简单易行,经济高效;毛不拉与陶乐段存在严重的河岸崩塌现象,汛期的崩塌量要大于非汛期塌岸量;毛不拉孔兑塌岸严重,塌岸量随着汛期与非汛期变化,而且汛期时孔兑的水流侵蚀作用对黄河河岸影响较小;河流塌岸量与河岸土地利用有明显关系,河流弯曲度与塌岸量呈现正相关,塌岸量较大时岸高与单位长度塌岸量呈正相关,塌岸量较小时两者关系不确定。

引用

页码：63 / 68

页数：6

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