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Research Article

volume 38 issue 1 (march 2018) : 11-16,   Doi: 10.18805/ag.D-4517

Estimation of sediment delivery ratio at sub-watershed level using revised and modified USLE

A
A.P. Lakkad
G
G.R. Patel
K
K.N. Sondarva
P
P.K. Shrivastava
1College of Agricultural Engineering and Technology, Navsari Agricultural University, Dediapada-393 040, Gujarat, India.
Cite article:- Lakkad A.P., Patel G.R., Sondarva K.N., Shrivastava P.K. (2018). Estimation of sediment delivery ratio at sub-watershed level using revised and modified USLE. Agricultural Science Digest. 38(1): 11-16. doi: 10.18805/ag.D-4517.

ABSTRACT

The success of planning for watershed developmental activities depends on the quality and quantity of information available of natural resources. The process of assessing soil erosion using conventional methods is cumbersome, time-consuming and costly therefore, in the present study, an attempt has been made to estimate sediment delivery ratio at sub-watershed level using RUSLE and SWAT Model. The raster layers of K, L, S, C, P factors and computed R factor value was used to derive gross soil erosion map of study area using raster calculator of spatial analyst tools in ArcGIS interface. The MUSLE was used to route and estimate the sediment yield at watershed outlet using SWAT model. Highest area covered by agricultural land (i. e. 41.54) of study area having 33.28 tons/ha/yr gross soil erosion needs immediate treatment of soil conservation in order to reduce water erosion. The average gross soil erosion rate for study area was estimated as 39.25 tons/ha/yr whereas, the sediment yield by SWAT was estimated to be 22.78 tons/ha./year. The estimated sediment delivery ratio indicates that 58 per cent of eroded soils go out of the watershed which reduces the soil depth and fertility of land on site and reaches Karjan reservoir thus reducing the water storage capacity of reservoir each year.

REFERENCES

  1. Anonymous, (2008-09.) Soil Resource Inventory and Management. Soil and Water Productivity, DARE/ICAR Annual Report, pp. 7-11.
  2. NAAS (2012.) Sustaining agricultural productivity through Integrated Soil Management. Policy Paper No. 56, National Academy of Agricultural Sciences, New Delhi, pp. 24. 
  3. Anonymous, (2014.) Watershed Atlas of India, Soil and Land Use Survey of India, Ministry of Agriculture, Government of India, Aravali Printers & Publishers Pvt. Ltd., New Delhi, pp 107.
  4. Auerswald, K., Fiener, P., Martin, W. and Elhaus, D. (2014). Use and misuse of the K factor equation in soil erosion modeling: An alternative equation for determining USLE nomograph soil erodibility values. Catena, 118:220-225
  5. Dhruvnarayan, V. V. (2007.) Soil and Water Conservation Research in India, ICAR, New Delhi, pp. 40-41.
  6. Jackson, M. L. (1973.) Soil Chemical Analysis, Prentice-Hall of India Pvt. Ltd., New Delhi, India, pp.39-415
  7. Kurothe, R. S. (1991-92.) Determination of ‘C’ and ‘P’ factors of USLE for important crops and management practices in vasad region. Annual Report, Central Soil and Water Conservation Research and Training Institute, Dehradun, 100-101.
  8. Liersch, S. (2003.) The Program pcpSTAT: user’s manual. Berlin, August 2003.
  9. Liersch, S. (2003.)The Programs dew.exe and dew02.exe: user’s manual.[http://www. brc. tamus. edu/swat/pcpSTAT. zip.]. 
  10. McCool, D. K., Brown, L. C., Foster, G. R., Mutchler, C. K. and Meyer, L. D. (1987.) Revised slope steepness factor for the Universal Soil Loss Equation. Transactions of the ASAE, 30(5): 1387-1396.
  11. Mitasova, H., Hofierka, J., Zlocha, M. and L. Iverson (1996.) Modelling topographic potential for erosion and deposition using GIS. International Journal of Geographical Information Systems. 10(5):629-641.
  12. Narain, P., Khybri, M. L., Tomar, H. P. S. and Sindhwal, N. S. (1994.) Estimation of runoff, soil loss and USLE parameters for Doon Valley. Indian journal of Soil Conservation, 22(3):129-132.
  13. Pimentel, D. (2006.) Soil Erosion: A Food and Environmental Threat. Environment, Development and Sustainability, 8:119–137.
  14. Singh G. Babu R. and Chandra S. (1981.) Soil loss prediction research in India; Tech. Bull. T-12/D-9, Central Soil and Water Conservation Research and Training Institute, Dehradun, India.
  15. Singh, G., Babu, R., Narain, P., Bhushan, L. S. and Abrol, I. P. (1992.) Soil erosion rates in India. Journal of Soil and Water Conservation, 47(1): 97-99. 
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    Research Article

    volume 38 issue 1 (march 2018) : 11-16,   Doi: 10.18805/ag.D-4517

    Estimation of sediment delivery ratio at sub-watershed level using revised and modified USLE

    A
    A.P. Lakkad
    G
    G.R. Patel
    K
    K.N. Sondarva
    P
    P.K. Shrivastava
    1College of Agricultural Engineering and Technology, Navsari Agricultural University, Dediapada-393 040, Gujarat, India.
    Cite article:- Lakkad A.P., Patel G.R., Sondarva K.N., Shrivastava P.K. (2018). Estimation of sediment delivery ratio at sub-watershed level using revised and modified USLE. Agricultural Science Digest. 38(1): 11-16. doi: 10.18805/ag.D-4517.

    ABSTRACT

    The success of planning for watershed developmental activities depends on the quality and quantity of information available of natural resources. The process of assessing soil erosion using conventional methods is cumbersome, time-consuming and costly therefore, in the present study, an attempt has been made to estimate sediment delivery ratio at sub-watershed level using RUSLE and SWAT Model. The raster layers of K, L, S, C, P factors and computed R factor value was used to derive gross soil erosion map of study area using raster calculator of spatial analyst tools in ArcGIS interface. The MUSLE was used to route and estimate the sediment yield at watershed outlet using SWAT model. Highest area covered by agricultural land (i. e. 41.54) of study area having 33.28 tons/ha/yr gross soil erosion needs immediate treatment of soil conservation in order to reduce water erosion. The average gross soil erosion rate for study area was estimated as 39.25 tons/ha/yr whereas, the sediment yield by SWAT was estimated to be 22.78 tons/ha./year. The estimated sediment delivery ratio indicates that 58 per cent of eroded soils go out of the watershed which reduces the soil depth and fertility of land on site and reaches Karjan reservoir thus reducing the water storage capacity of reservoir each year.

    REFERENCES

    1. Anonymous, (2008-09.) Soil Resource Inventory and Management. Soil and Water Productivity, DARE/ICAR Annual Report, pp. 7-11.
    2. NAAS (2012.) Sustaining agricultural productivity through Integrated Soil Management. Policy Paper No. 56, National Academy of Agricultural Sciences, New Delhi, pp. 24. 
    3. Anonymous, (2014.) Watershed Atlas of India, Soil and Land Use Survey of India, Ministry of Agriculture, Government of India, Aravali Printers & Publishers Pvt. Ltd., New Delhi, pp 107.
    4. Auerswald, K., Fiener, P., Martin, W. and Elhaus, D. (2014). Use and misuse of the K factor equation in soil erosion modeling: An alternative equation for determining USLE nomograph soil erodibility values. Catena, 118:220-225
    5. Dhruvnarayan, V. V. (2007.) Soil and Water Conservation Research in India, ICAR, New Delhi, pp. 40-41.
    6. Jackson, M. L. (1973.) Soil Chemical Analysis, Prentice-Hall of India Pvt. Ltd., New Delhi, India, pp.39-415
    7. Kurothe, R. S. (1991-92.) Determination of ‘C’ and ‘P’ factors of USLE for important crops and management practices in vasad region. Annual Report, Central Soil and Water Conservation Research and Training Institute, Dehradun, 100-101.
    8. Liersch, S. (2003.) The Program pcpSTAT: user’s manual. Berlin, August 2003.
    9. Liersch, S. (2003.)The Programs dew.exe and dew02.exe: user’s manual.[http://www. brc. tamus. edu/swat/pcpSTAT. zip.]. 
    10. McCool, D. K., Brown, L. C., Foster, G. R., Mutchler, C. K. and Meyer, L. D. (1987.) Revised slope steepness factor for the Universal Soil Loss Equation. Transactions of the ASAE, 30(5): 1387-1396.
    11. Mitasova, H., Hofierka, J., Zlocha, M. and L. Iverson (1996.) Modelling topographic potential for erosion and deposition using GIS. International Journal of Geographical Information Systems. 10(5):629-641.
    12. Narain, P., Khybri, M. L., Tomar, H. P. S. and Sindhwal, N. S. (1994.) Estimation of runoff, soil loss and USLE parameters for Doon Valley. Indian journal of Soil Conservation, 22(3):129-132.
    13. Pimentel, D. (2006.) Soil Erosion: A Food and Environmental Threat. Environment, Development and Sustainability, 8:119–137.
    14. Singh G. Babu R. and Chandra S. (1981.) Soil loss prediction research in India; Tech. Bull. T-12/D-9, Central Soil and Water Conservation Research and Training Institute, Dehradun, India.
    15. Singh, G., Babu, R., Narain, P., Bhushan, L. S. and Abrol, I. P. (1992.) Soil erosion rates in India. Journal of Soil and Water Conservation, 47(1): 97-99. 
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