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Dr. AD Ampitiyawatta

Senior Lecturer

Agricultural Sciences

Email : ada@agri.sab.ac.lk

Mobile :0715346990

    Qualifications

  • Doctor of .Engineering (D.Eng) in Hydrology and Water Resource Engineering

    College of Water Resources and Hydropower, Wuhan University, P.R. China, 2008.

     

    M.Sc. Agric. - Specializing in Crop Science,

    Post Graduate Institute of agriculture, University of Peradeniya, Sri Lanka, 2003

     

    B.Sc. Agric. - Specializing in Agriculture engineering

    Faculty of Agriculture, University of Ruhuna, Sri Lanka, 1999 (Second Class Upper Division (honours).

    Research Interests

    • Hydrology and Water resources Management
    • Agro Climatology
    • Eco-hydrology
    • Irrigation
    • Rain Water Harvesting

    Recent Publications

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    1. Senevirathne, S. M. P., Hettiarachchi M. H. S. M, Dilrukshi R. P. W. A., Kapila Kumara . G.D. Ampitiyawatta A. D. and. Beneragama C. K Meta-analysis of Technical Efficiency in Selected Agricultural Sub-sectors: Implications for Policy Making in Developing Countries like Sri Lanka. Asian Journal of Research in Agriculture and Forestry. 7(2), 42-57, 2021
    2. Ampitiyawatta, A.D and Wimalasiri, G.E.M. Impact of El Niño Southern Oscillation and Indian Ocean Dipole Index on growing seasonal characteristics: A case study in Batalagoda. International Journal of Research and Innovation in Applied Science (IJRIAS). 6(5), 123-125, 2021.
    3. Ampitiyawatta, A.D and Weerasuriya, M.M.M. Ability of Moisture Absorbing Substrate to Conserve Percolating water. International Journal of Research and Innovation in Applied Science (IJRIAS). 6(5), 29-31, 2021
    4. Kapila Kumara, Ampitiyawatta A.D., Adithya Padmaperuma,
      Chalinda Beneragama  and Xia Yi Ping. Alleviation of Salt-Induced Adverse Effets on Gas Exchange, Photosynthetic Pigments Content and Chloroplast Ultrastructure in Gerbera Jamesonii L. by Exogenous Salicylic Acid Application. Asian Journal of Research in Agriculture and Forestry. 7(2), 1-13, 2021.
    5. Kaushalya, K.C, Ampitiyawatta, A.D., Kumara, J.B.D.A.P., Wimalasiri, G.E.M. and Nilmalgoda, E.P.R.H.H.W. Changes of Temperature and Precipitation Extremes in Anuradhapura district in Sri Lanka during 1981 – 2019. Proceedings of Annual research session, Sabaragamuwa University of Sri Lanka, December 19, 2020.
    6. Kaushalya, K.C, Devinda, G.D.S. Ampitiyawatta, A.D., Wimalasiri, G.E.M and Kumara, J.B.D.A.P. Analysis of Extreme Climate Events during 1981 – 2019 across Sri Lanka. Proceedings of International Symposium on Agriculture and Environment (ISAE 2021). Faculty of Agriculture, University of Ruhuna, 07 May, 2021. 
    7. Ampitiyawatta, A.D. (2020).  A Comparative Study On Cascade Reservoir Operation Models. Journal of Multidisciplinary Engineering Science Studies (JMESS). 6(10), 3541-3550.
    8. Ampitiyawatta, A.D. (2020) Cascade reservoirs optimal operation through combined guide curves. Global Journal of Engineering and Technology Advances (GJETA). 05(01), 039–052.
    9. Ampitiyawatta, A.D. (2020) Application of HEC-ResSim in Qinhjiang Cascade reservoirs. Journal of Multidisciplinary Engineering Science Studies (JMESS), 6(9), 3536-3540.
    10. Nilmalgoda, E.P.R.H.H.W., Wimalasiri, G.E.M., Kumara, J.B.D.A.P. and Ampitiyawatta, A.D. Trend in occurrences of extreme temperature events of Anuradhapura district in Sri Lanka.  Proceedings of International Symposium on Agriculture and Environment (ISAE 2020). Faculty of Agriculture, University of Ruhuna, 14 February, 2020. 
    11. Ampitiyawatta, A.D., Wimalasiri, G.E.M., Nilmalgoda, E.P.R.H.H.W. and Kumara, J.B.D.A.P. Use of RClimDex to assess temperature extremes: A case study in Anuradhapura, Sri Lanka. Proceedings of 7th International Conference of Sabaragamuwa University of Sri Lanka (ICSUSL 2019), 14th and 15th November, 2019.
    12. Kaushalya, K.C., Yalegama C. and Ampitiyawatta, A.D. Application of improved traditional wet method to produce good quality virgin coconut oil in pilot scale. Proceedings of the Undergraduate Research, Faculty of agricultural Sciences, Sabaragamuwa University of Sri Lanka. 2018(1), 12
    13. Indeevari, P.K.U., Subasingha, H.M.P.A. and Ampitiyawatta, A.D. Relationship between stress degree Days and initial Growth Performances of Black Pepper (Piper nigrum L. ) Proceedings of the Undergraduate Research, Faculty of agricultural Sciences, Sabaragamuwa University of Sri Lanka. 2018(1), 12
    14. Perera, D.D.A.S., Ampitiyawatta, A.D. and Liyanaarachchige, C.D.M. Assessment of Water management Systems at Walawa Special Area of Mahaweli systems to enhance the Agriculture Sector. Proceedings of the Undergraduate Research, Faculty of agricultural Sciences, Sabaragamuwa University of Sri Lanka. 2018(1), 12
    15. Kaushalya, K.C., Ampitiyawatta, A.D. and Yalegama C. Application of improved traditional wet method to produce good quality virgin coconut oil in pilot scale. Annual research session, Sabaragamuwa University of Sri Lanka, December 19, 2018.
    16. Weerasuriya, M.M.M and Ampitiyawatta, A.D., A suitable substrate to conserve soil moisture by reducing the percolation of water. Wayamba International Conference  – WinC – 2018 Wayamba University of Sri Lanka, 24, 25 August 2018
    17. Ampitiyawatta, A.D., and Wimalasiri, G.E.M. A Protocol to determine Interannual variation of Northeast Monsoon (Maha Rainfalls): A Case study in Anuradhapura, Sri Lanka. International Symposium on Agriculture and Environment (ISAE). Faculty of Agriculture, University of Ruhuna, 19, 20 January, 2018. 
    18. Sanjeewa, A., Ampitiyawatta, A.D. and Wijayawardena, L.M.J.R. Identifying and classifying lift irrigation potential sugarcane lands in rain-fed areas in Sewanagala using GIS (geographic Information Systems), Export Agric Research Sessions 2017, Pg 28
    19. Dilhani, A.G.L. and Ampitiyawatta, A.D., Screening the efficacy of new Bio herbicide against weeds in Tea, Export Agric Research Sessions 2017, Pg 27
    20. Weerasuriya, M.M.M and Ampitiyawatta, A.D., A suitable substrate to conserve soil moisture by reducing the percolation of water. Export Agric Research Sessions 2017, Pg 16
    21. Wijeratne A.W. and Ampitiyawatta, A.D. Three stage diminishing sample size: A rotating sampling procedure for estimating seasonal mono-crop yield.  International Symposium on Agriculture and Environment (ISAE). Faculty of Agriculture, University of Ruhuna, 19, 20 January, 2017. 
    22. Ampitiyawatta, A.D., and Wijeratne A.W. Impact of seasonal changes of rainfall on water resources management in Sri Lanka. Wayamba International Coferance - WinC - 2016, Wayamba University of Sri Lanka 19, 20 August, 2016.
    23. Ampitiyawatta, A.D., and Wijeratne A.W. (2015) Impact of Temporal Changes of Rainfall on Major Climatic Zones of Sri Lanka. Tropical Agricultural Research & Extension 18(4):148-152.
    24. Hasanthi, P.D.M, Kudaligama, K.V.V.S. and Ampitiyawatta, A.D. Preliminary investigation on some biochemical componenets of Rubber (Hevea brasiliensis) wood of RRIC 102 and RRIC 121 Genotypes at Dartonfield Estate. Nineteenth International Forestry and Environment Symposium. 24th - 25th October 2014.
    25. Ampitiyawatta, A.D., and Wijeratne A.W. Analysis of historical and predicted trend for rainfall and temperature in Sri Lanka. International Conference of Agricultural Sciences 2014 “Perspective for Contemporary Agriculture: Challenges and Future Directions” 9th -10th January 2014.
    26. Niroshani, T.I., Jayasundera, J.M.M.A. and Ampitiyawatta, A.D. Development of spray dried herbal porridge with coconut milk. International Conference of Agricultural Sciences 2014 “Perspective for Contemporary Agriculture: Challenges and Future Directions” 9th -10th January 2014.
    27. Wijeratne A.W., Kumara, G.D.K. and Ampitiyawatta, A.D. A forward reduction rotational sampling design for estimating the paddy yield. International Conference of Agricultural Sciences 2014 “Perspective for Contemporary Agriculture: Challenges and Future Directions” 9th -10th January 2014.
    28. Ampitiyawatta, A.D. and Guo Shenglian.(2009) Long term trend of precipitation in Kalu ganga basin in Sri Lanka. Journal of Agricultural Sciences. 4(1): 10-18.
    29. Canhua, K., Samantha, K.P.A.P., Long, W., Ampitiyawatta, A.D. and Zoysa, K.D. (2007). Country image perception and ethnocentrism: Empirical evidence from young Sri Lankans. Colombo Business Journal, Faculty of Management and Finance, University of Colombo.
    30. Ampitiyawatta, A.D., and Wijeratne, A.W. A historical trend analysis of rainfall and temperature in Sri Lanka. National Symposium 2008 “New frontiers in Agriculture; from farm to fork” held in 23rd and 24th October 2008.
    31. Ampitiyawatta, A.D., Guo Shenglian and Wei Li. (2008). Study on regulation rules of HEC-ResSim model in Qingjiang cascade reservoir system (in Chinese). Water Power, 34(1): 15-17.
    32. Ampitiyawatta, A.D., Guo Shenglian and Wei Li. Application and Suitability of HEC-ResSim in Qingjiang cascade reservoirs. Proceedings of the 2nd International Conference on GIS and RS in Hydrology, Water Resources and Environment/ 2nd International Symposium on Flood forecasting and Management with GIS and RS, 7 – 13 September, 2007, Guangzhou and Three Gorges, China.
    33. Wei Li, Guo Shenglian, Ampitiyawatta, A.D. and Pan Liu. (2007). A real-time dynamic flood prevention storage control model for Qingjiang cascade reservoirs. Proceedings of the Symposium HS3006, Perugia, Italy, IAHS Pub. 315. pp 41-47
    34. Canhua, K., Samantha, K.P.A.P., Long, W., Ampitiyawatta, A.D. and Zoysa, K.D. (2007). Country image perception and ethnocentrism: Empirical evidence from young Sri Lankans. Proceedings of the International research Conference on knowledge for Growth and Development, 30th November, University of Colombo, Sri Lanka, pp17-32. (Paper was awarded as the Outstanding paper Contribution in Marketing at the Conference)
    35. Wijeratne, A.W., Udaya Kumara, E.P.N. and Ampitiyawatta, A.D. (2004). Weather changing patterns of the recently earthslip affected area – Puwakgahawela. 9th Annual Forestry and Environment Symposium, 27th- 28th February,2004.