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Effects of desert riparian vegetation roots on the riverbank retreat process in the Tarim River in China by Quanli Zong; Tiegang Zheng; Ruize Tang; Kai Jin; Lin Li; Peng Qin; Chunxia Liu is a Environmental Science article available to read on EtoBox.

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The desert riparian vegetation zone is an important part of the riparian ecosystem. It is significant for river evolution and to channel beds owing to the reinforcement effect of the vegetation roots on the bank and resistance to erosion. The quantitative effects on toe erosion and bank collapse were first investigated to determine how vegetation roots affect the continuous retreat process of riverbanks under different water levels. The case study is the Tarim river, the degrees of riverbank stability at eight sampling sites during the 2016 and 2017 hydrological years were calculated using the bank stability and toe erosion model (BSTEM). Furthermore, the effects of six vegetation species, Populus euphratica (PE), Tamarix ramosissima (TR), Alhagi sparsifolia (AS), Nitraria tangutorum (NT), Phragmites australis (PA), and Glycyrrhiza uralensis (GU), on riverbank stability were discussed. Taking the right bank of sampling site II (Alar New Bridge) as an example, the bank stability safety factor (Fs) and collapse process under the roots of six vegetation species with different root area ratios (RARs) were calculated. The following conclusions were drawn from the results: (a) Different

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Author

Quanli Zong; Tiegang Zheng; Ruize Tang; Kai Jin; Lin Li; Peng Qin; Chunxia Liu

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)