Volume 20, Issue 59 (1-2021)                   jgs 2021, 20(59): 119-136 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

valipour T, Hosseinzadeh M M, M.biranvand S. Study of Bank erodibility and its effective factors in the Lavij River (Mazandaran Province, Chamestan). jgs 2021; 20 (59) :119-136
URL: http://jgs.khu.ac.ir/article-1-3270-en.html
1- Shahid Beheshti University
2- Shahid Beheshti University , m_hoseinzadeh@sbu.ac.ir
Abstract:   (4335 Views)

Channel retreat  are an important process in the river's morphodynamics, which affects channel variation, flood plain development and habitat development.   Structures and farmland the border of the Lavij River Faces the risks of river bed change every year. Therefore, there is a need for a reliable method to determine the river bank retreat and predict the river bank Stability. In this study, with the aim of   investigation of the risk of erosion and identification of areas susceptible to erosion in the Lavij River, Using BEHI and NBS models, the risk of side erosion was determined in 7 sections of this river. The results of the NBS model using the tnb / tbkf index showed that the rate of erosion of the Lavij river bank in all studied cross sections, except for cross sections 2 and 6 ,erosion rate is high and very hight. According to the indicator (dnb / dbkf), the bank erosion rate of the Lavij River, except for sections 4 and 5, is approximately consistent with the erosion trend obtained from the first index (tnb / tbkf). According the BEHI model, cross sections 5, 4, 3, 1 and 6 show a high incidence of instability and have a great potential for bank erosion and sediment production. Also, cross section 2 shows the medium instability status. Cross Section 7 and 2 show a high degree of instability, which has a high potential for bank erosion and sediment production. Finally, Kruskal-Wallis statistical test was fitted to evaluate the results matching and the results showed that all three indicators were almost identical to each other in the assessment of bank erosion.
 

Full-Text [PDF 1712 kb]   (1137 Downloads)    
Type of Study: Research | Subject: Geomorphology
Received: 2018/10/8 | Accepted: 2019/03/17

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Journal of Applied researches in Geographical Sciences

Designed & Developed by : Yektaweb