The Influences of Riparian Vegetation on Bank Failures of a Small Meadow-Type Meandering River

doi:10.3390/w10060692

ISL OpenIR

	The Influences of Riparian Vegetation on Bank Failures of a Small Meadow-Type Meandering River
	Zhu, Haili; Hu, Xiasong; Li, Zhiwei; Song, Lu; Li, Ke; Li, Xilai; Li, Guorong
第一作者	Zhu, Haili
	2018-06
发表期刊	WATER
ISSN	2073-4441
卷号	10 期号:6
关键词	Meandering River Equilibrium Equation Cantilever Bank Failure Root Tensile Strength Riparian Meadow Yellow River Source Zone
摘要	The outer banks of meadow-type meandering river bends in the source zone of the Yellow River are especially vulnerable to bank failure. This study aims to understand how vegetation affects bank stability and the mechanism of bank failure, especially via a prediction of the width of a collapsed block of small rivers through a proposed bank stability equilibrium as well as field sampling. Soil and vegetation properties were surveyed at four sites near the riverbank in 2013-2016. It was found that the failed blocks had, on average, a dimension of 0.865 m (width) by 0.817 m (thickness) by 2.228 m (length). The variability in the size of all the failed blocks was attributed predominantly to the roots of plants. Block thickness could be logarithmically predicted by root length at R-2 0.76. The block width predicted from the proposed equilibrium equation deviated from in situ measurements by approximately 22.1%, a discrepancy highly subject to the overestimation of root reinforcement using Wu's model. By reducing the coefficient of Wu's model from 1.2 to 0.85, the proposed equilibrium equation was reliable to predict the width of bank collapse. However, its applicability to other study areas needs to be verified in further studies.
DOI	10.3390/w10060692
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/7648
专题	中国科学院青海盐湖研究所青海盐湖研究所知识仓储
推荐引用方式 GB/T 7714	Zhu, Haili,Hu, Xiasong,Li, Zhiwei,et al. The Influences of Riparian Vegetation on Bank Failures of a Small Meadow-Type Meandering River[J]. WATER,2018,10(6).
APA	Zhu, Haili.,Hu, Xiasong.,Li, Zhiwei.,Song, Lu.,Li, Ke.,...&Li, Guorong.(2018).The Influences of Riparian Vegetation on Bank Failures of a Small Meadow-Type Meandering River.WATER,10(6).
MLA	Zhu, Haili,et al."The Influences of Riparian Vegetation on Bank Failures of a Small Meadow-Type Meandering River".WATER 10.6(2018).

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