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River bank erosion risk potential estimation through mechanical and erodibility analysis of soil: A study on left bank of Ganga river near Malda district in West Bengal, India

Author Affiliations

  • 1Department of Geography, University of Gour Banga
  • 2Department of Geography, Diamond Harbour Women’s University

Int. Res. J. Social Sci., Volume 10, Issue (3), Pages 23-34, July,14 (2021)

Abstract

River bank erosion is a risky and common phenomenon in Malda district during monsoon and post monsoon periods of every year. One of the significant causes behind this hazard is the geological nature of the river bank. Geologically river bank of the study area is very weak. The nature of river bank soil textural composition has been measured by basis parameters analysis and mechanical analysis of soil and its erodibility level. Sieve analyses has been done on all collected soil samples and determine uniformity coefficient, coefficient of gradation and sorting coefficient as basic parameters, nature of soil through mechanical analysis of particles after Folk and Worst method and the degree of soil erodibility through Bouyoucos Erodibility Index and ROM scale after ROslan and Mazidah. The results show that the erodibility levels become high to moderate condition along middle to lower extension of left bank line and relatively low along upper extension according to ROM scale. Nature of soil along left bank is dominantly sandy in nature which promotes vulnerable condition of river bank sites. Basic parameters of soil and its mechanical analysis also reveals that unstable condition exist along river bank line but instability condition is increasing from upper to lower segment of bank line. So risk of river bank failure can be measured by determining textural composition of soil.

References

  1. Camporeale, C., Perucca, E., Ridolfi, L. & Gurnell, A.M. (2013)., Modeling the interactions between river morphodynamics and riparian vegetation., Rev Geophys, 51(3), 379-414.
  2. Hackney, C., Best, J., Leyland, J., Darby, S.E., Parsons, D., Aalto, R. and Nicholas, A. (2015)., Modulation of outer bank erosion by slump blocks: disentangling the protective and destructive role of failed material on the three-dimensional flow structure., Geophys Res Lett, 42(24), 10–663.
  3. Clark, L. A., & Wynn, T. M. (2007). Methods for determining streambank critical shear stress and soil erodibility: Implications for erosion rate predictions. Transactions of the ASABE, 50(1), 95-106., undefined, undefined
  4. Schumm, S.A. (1963)., Sinuosity of alluvial rivers on the Great Plains., Geol Soc Am Bull, 74(9), 1089–1100.
  5. Smyth, A. J., & Montgomery, R. F. (1962). Soils and Land Use in Central Western Nigeria. Soils and Land Use in Central Western Nigeria., undefined, undefined
  6. Roslan, Z.A., Naimah, Y. & Roseli, Z.A. (2013)., River bank erosion risk potential with regards to soil erodibility., WIT Transactions on Ecology and The Environment, 172. Doi: 10.2495/RBM130241
  7. Mirtskhoulava T.E. (1991)., Scouring by flowing water of cohesive and noncohesive beds., J Hydraul Res, 29(3), 341–354.
  8. Mitchener H. and Torfs H. (1996)., Erosion of mud/sand mixtures., Coast Eng, 29, 1–25.
  9. Debnathm K., Nikora V. & Elliott A. (2007)., Stream bank erosion: in situ flume tests., J Irrig Drain Eng, 133(3), 256–264.
  10. Black K.S., Tolhurst T., Paterson D.M. and Hagerthey S.E. (2002)., Working with natural cohesive sediments., J Hydraul Eng, 1281, 2–8.
  11. Perry A.E. and Joubert P.N. (1963)., Rough-wall turbulent boundary layers in adverse pressure gradients., J Fluid Mech, 17, 193.
  12. Bandyopadhyay P.R. (1987)., Rough-wall turbulent boundary layers in the transition regime., J Fluid Mech, 180, 231.
  13. Krogstad, P.A., Antonia, R.A. & Browne, L.W.B. (1992)., Comparison between rough- and smooth-wall turbulent boundary layers., J Fluid Mech, 245, 599–617.
  14. Houwing, E.J. and Van Rijn, L.C. (1998)., In situ erosion flume (ISEF): determination of bed-shear stress and erosion of a kaolinite bed., J Sea Res, 39(3–4), 243–253.
  15. Schultz, M.P. and Flack, K.A. (2007)., The rough-wall turbulent boundary layer from the hydraulically smooth to the fully rough regime., J Fluid Mech, 580, 381–405.
  16. Census of India (2001)., Provisional population totals, West Bengal, Table-4. Maldah District (06)., Government of West Bengal. http://web.cmc.net.in/ wbcensus/ Data Tables/02/Table4_6.htm. Retrieved 2011-07-21
  17. Banerjee, M. (1999)., A report on the impact of Farakka Barrage on the human fabric., On behalf of South Asian network on dams, rivers and people (SANDRP). http://www.sandrp.in/dams/impact_frka_wcd.pdf. Accessed on 12.2.2008
  18. Bouyocous, G.J. (1962)., Hydrometer method improved for making particle size analysis of soil., Agr. J., 54, 3.
  19. Handayani, I.P. and Prawito, P. (2008)., Exploring Folk Knowledge of Soil., International Journal of Soil Science, 3, 83-91. DOI: 10.3923/ijss.2008.83.91
  20. Wentworth, C.K. (1922)., A Scale of Grade and Class Terms for Clastic Sediments., The Journal of Geology, 30(5), 377-392. https://www.jstor.org/stable/30063207
  21. Majumdar, S. and Mandal, S. (2020)., Assessment of relationship of braiding intensities with stream power and bank erosion rate through Plan Form Index (PFI) method: A study on selected reaches of the upstream of Ganga river near Malda district, West Bengal, India., Sustainable Water Resources Management, 6,107. https://doi.org/10.1007/s40899-020-00462-z