Application of Genetic Algorithm for Estimating Saturated Soil Hydraulic Parameters

Document Type : Research Paper

Authors

1 Former M.Sc. Student of Irrigation and Drainage Department, Faculty of Water Sciences and Engineering, Shaid Chamran University of Ahvaz

2 Assistant Professor of Irrigation and Drainage Department, Faculty of Water Sciences Engineering, Shaid Chamran University of Ahvaz

3 Assistant Professor of Water Engineering Department, Faculty of Agriculture, University of Kurdistan

Abstract

Saturated hydraulic conductivity (Ks) and drainable porosity () are two important parameters for designing subsurface drainage systems under unsteady-state flow conditions. In this study, an inverse method was developed to estimate the optimal values of Ks and. In the proposed inverse method, a genetic algorithm was used as an optimization technique. The drainage equation used in this research was Glover-Dumm equation. In order to measure the data required for calibration and evaluation of the developed inverse method, a sand box was designed and constructed in the laboratory. Also, the values of Ks and  were measured directly. The water table height between the two subsurface drains was simulated by using the values of Ks and  obtained from inverse method and direct method. The comparison of water table profiles indicated that predicting the water table profile using the values of Ks and  obtained from inverse method was more accurate. In addition, the value of RMSE index decreased significantly using inverse method. Thus, this method was more exact. Therefore, it appears that the inverse method presented in this study is a highly efficient approach for estimating the values of Ks and. 

Keywords

References

  1. بای­بوردی، م. 1379. اصول مهندسی آبیاری، جلد اول: روابط آب و خاک. انتشارات دانشگاه تهران، 709 صفحه.
  2. علیزاده، ا. 1384. زهکشی جدید (برنامه­ریزی، طراحی و مدیریت سیستم­های زهکشی). انتشارات دانشگاه امام رضا (ع)، 495 صفحه.
  3. فتحی، پ. 1384. شبیه­سازی یک و دو بُعدی جریان غیرماندگار به طرف زهکش­ها و تعیین خصوصیات هیدرولیکی با روش مسأله معکوس. پایان­نامه دکتری، دانشکده کشاورزی دانشگاه تربیت مدرس، 220 صفحه.
  4. Abbaspour, K.C., Scholin, R. and Van Genuchten, M.T.H. 2001. Estimating unsaturated soil hydraulic parameters using ant colony optimization. Advances in Water Resources. 24: 827- 841.
  5. Aimrun, W., Amin, M.S.M., and Eltaib, S. M. 2004. Effective porosity of paddy soils as an estimation of its saturated hydraulic conductivity. Geoderma. 121:197–203.
  6. Bahceci, İ. 2008. Determining the drainable pore space through field tests in Konya Plain, Turkey. Irrigation and Drainage. 57: 71-82.
  7. Engelbrecht, A.P. 2007. Computational intelligence: An introduction. John Wiley & Sons Ltd, West Sussex, England, 597 pp.
  8. FAO. 1980. Drainage design factors. FAO Irrigation and Drainage Paper No. 38. Italy, Rome.
  9. Hill, M.C. and Tiedeman, C.R. 2007. Model calibration: with analysis of data, sensitivities, predictions, and uncertainty. John Wiley & Sons, INC. Publication, New Jersey, USA, 455 pp.
  10. Ins, A.V.M. and Droogers, P. 2002. Inverse modelling in estimating soil hydraulic functions: a Genetic Algorithm approach. Hydrology and Earth System Sciences. 6 (1): 49-65.
  11. Kirkham, D. 1945. Proposed method for field measurement of permeability of soil below the water table. Processing of the Soil Science Society of America, 11: 93-99.
  12. Kumar, S., Gupta, S.K. and Ram, S. 1994. Inverse technique for estimating transmissivity and drainable pore space utilizing data from subsurface drainage experiments. Agricultural Water Management. 26: 41- 58.
  13. Minasny, B., McBratney, A.B. 2002. The efficiency of various approaches to obtaining estimates of soil hydraulic properties. Geoderma. 107: 55–70.
  14. Mohanty, B.P., Kanvar, R.S., and Horton, R. 1991. A robust-resistant approach to interpret spatial behavior of saturated hydraulic conductivity of nine glacial-till soils under no-tillage system. Water Resources Research. 27(11): 2979–2992.
  15. Moustafa, M.M. 2000. A geostatistical approach to optimize the determination of saturated hydraulic conductivity for large-scale subsurface drainage design in Egypt.  Agricultural Water Management. 42: 291-312.
  16. Ritterr, A., Hupet, F., Muñoz-Carpena, R., Lambot, S. and Vanclooster, M. 2003. Using inverse methods for estimating soil hydraulic properties from field data as an alternative to direct methods. Agriculture Water Management. 59: 77-96.
  17. Ritzema, H.P. (Editor-in-chief). 1994. Drainage Principles and Applications. International Institute of Land Reclamation and Improvement, The Netherlands, 1125 pp.
  18. Schaap, M.G., Leii, F.J., and van Genuchten, M.T. 2001. ROSETTA: a computer program for estimating soil hydraulic parameters with hierarchical pedotransfer functions. Journal of Hydrolog., 251: 163-176.
  19. Sepaskhah, A.R. and Ataee, J. 2004. A Simple Model to determine Saturated Hydraulic Conductivity for Large-scale Subsurface Drainage. Biosystems Engineering. 89 (4), 505–513.
  20. Sepasakhah, A.R. and Rezaee, A. 1998. Hydraulic conductivity measurement for subsurface drainage system. Iran Agricultural Research. 17: 139–150.
  21. Singh, B. and O’Callaghan, J.R. 1978. Effect of interflow on soil drainage. Journal of Agricultural Engineering Research. 23: 397-415.
  22. Skaggs, R.W. 1976. Determination of hydraulic conductivity-drainable porosity ratio from water table measurements. Transactions of ASAE. 19: 73-80.
  23. Tadikonda, V.B., Puvvadi, V.S. and Mehter, M.A. 2009. Swarm intelligence-based solver for parameter estimation of laboratory through-diffusion transport of contaminants. Computers and Geotechnics. 36: 984-992.
  24. Taylor, G.S. 1960. Drainage porosity Evaluations from outflow measurements and its use in drawdown equation. Soil Science. 90(60): 338 – 343.
  25. USBR. 1984. Drainage manual. A Water Resources Technology Publication, Denver, USA.
  26. Van Beers, W.F.J. 1983. The auger hole method. International Institute of Land Reclamation and Improvement, Wageningen, The Netherlands, Bulletin No. 1.
  27. Vlotman, W.F., Willardson, L.S. and Dierickx, W. 2000. Envelope design for subsurface drains. International Institute of Land Reclamation and Improvement, Wageningen, The Netherlands, 358 pp.
Iranian Journal of Soil Research
Volume 28, Issue 1
September 2019
Pages 143-152

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