Dr. (Mrs.) SR Amarasinghe

Senior Lecturer Gr. I
Dept. of Soil Science
Faculty of Agriculture, University of Ruhuna, Sri Lanka

Qualifications:
BSc. Agriculture (UoR, SL), M.Phil. (SL), Ph.D. (Saitama, Japan)

Phone

:

+94 41 2292200 Ext. 295 (Office)

+94 71 5835475 (Mobile)

Fax

:

+94 41 2292384

E-mail

:

rajika@soil.ruh.ac.lk

Google Scholar

   

FULL NAME

SAJEEWANI RAJIKA AMARASINGHE

 

HONORS & AWARDS

  • Japanese government scholarship (MONBUKAGAKUSHO: MEXT) to conduct Ph.D. in Saitama University, Japan (From October 2008 to September 2011)

  • Awarded Research Assistant post to conduct the M.Phil. in Open University of Sri Lanka under National Science Foundation –NSF Grant (From 2005 to 2007)

  • Fellowship for the International course on “Water Stewardship in action for water and food security ” offered by Wageningen University, the Netherlands, Nuffic program May/June, 2021

  • Fellowship for the International course on “Completing Claims on Land ,Water and other (Agricultural) Resources” held in Wageningen University, the Netherlands Nuffic program (27th February-10th March 2017)

  • Scholarship for Women in Technology (WIT) to conduct Cisco Networking by Sri Lanka Institute of Information Technology (SLIIT)-July 2004-June 2005

 

 

PUBLICATIONS

 

Amarasinghe SR (2021) Use of Invasive Water Hyacinth plants for composting of ordinary leaf litter, Sri Lanka Journal of Agriculture and Environment, Rajarata University Sri Lanka, 3:1 pp 5-16

 

Amarasinghe SR (2020) Health Risk Assessment of Heavy Metals in Drinking Water: A case study in Lenabatuwa Division of Southern Sri Lanka, Rajarata University Journal. 5:11 pp 108-114

 

SR Amarasinghe, PLA Madushanka (2021)Temporal and Spatial Variation of Irrigation Water Quality in a Tank Cascade System in Thanamalwila, Sri Lanka, 18th Academic session, University of Ruhuna, Sri Lanka

 

WAK Pushpajith, SR Amarasinghe, RHGB Prabhashini, NY Hirimuthugoda (2021) Study on the Suitability of Artificial Floating Wetlands to Purify Eutrophic Water Bodies, 18th Academic session, University of Ruhuna, Sri Lanka

 

ISU Rupasinghe, AARW Abeysinghe, SR Amarasinghe, DAL Leelamanie, (2021) Influence of Biochar Addition on pH and EC of Municipal Solid Waste Composts, 18th Academic session, University of Ruhuna, Sri Lanka

 

KMC Tharupath, GC Samaraweera, SR Amarasinghe (2021)Young Generation's Awareness and Perception on Solid Waste Management: A Case of School Children in Matara District, 18th Academic session, University of Ruhuna, Sri Lanka

 

S. R. Amarasinghe, P. G. S. Pallewatta, S. M. A. E. Samarakoon (2021) Effect of Water Hyacinth (Eichhornia crassipes) Compost mixtures on growth attributes of Chilli (Capsicum annum) International Symposium on Agriculture and Environment, University of Ruhuna, Sri Lanka

 

Amarasinghe SR and GC Samaraweera (2020) Solving the Crisis of E-Waste: Present Status and Future Challenges: A case study in Faculty of Agriculture, University of Ruhuna, Sri Lanka, 17th Academic session, University of Ruhuna, Sri Lanka. p12

 

Tharupath K.M.C., Samaraweera G.C. and Amarasinghe S.R. (2020) Developing a Solid Waste Management Policy through Young Generation’s View: A Case of School Children in Matara District, Sri Lanka, International Symposium on Agriculture and Environment, University of Ruhuna, p13

 

Amarasinghe S. R. (2020) Household knowledge, attitude, awareness and behavior towards solid waste management: A case study in Kamburupitiya Divisional Secretariat, International Symposium on Agriculture and Environment, University of Ruhuna

 

Amarasinghe SR and Gunawardhana LAASM (2020) Effect of vermicompost with biodynamic formulated biochar on Carbon and Nitrogen mineralization in Ultisols and Alfisols (2020) 13th International Research Conference General Sir John Kotelawala Defence University pp 40-45

 

Amarasinghe SR, and Fernando HG (2014) Pro-environmental behavior regarding solid waste management in households of Kalutara urban council area: A case study, Journal of Tropical Forestry & Environment, University of Sri Jayawardenepura, Vol 4:1 pp 80-84

 

Amarasinghe SR, Watanabe K, and Ishiyama K (2011) Study on the selection of unsaturated flow model for the different types of soil and soft rock, Environmental Earth Science DOI 10.1007/s12665-011-0982-3 Vol 64: pp 1795-1805

 

Amarasinghe SR, Watanabe K, and Maung MM (2011) Estimating unsaturated hydraulic properties of soft rock by three different flow models, Journal of Japan Society of Civil Engineers, vol. 67-No.4: I-91-I-96

 

Amarasinghe SR, Watanabe K, and Abozeid G (2010) Comparison between Campbell and van Genuchten models by inverse estimation of unsaturated properties, Annual Journal of Hydraulic Engineering, Japan Society of Civil Engineers, vol.54: 31-36

 

Amarasinghe, SR. Wanniarachchi, SD., Weralugolla, SSS and Peramunagama SSM (2017) The effect of a microbial inoculant on release of Phosphorous from different organic amendments in an Ultisol, International Symposium on Agriculture, Faculty of Agriculture, Eastern University of Sri Lanka, ISBN 978-955-1443-887:181-185

 

De Siva CS, and Amarasinghe SR (2008) Water Quantity assessment of Agro-wells in Vavuniya District, Water Recourses Research in Sri Lanka, Geo Informatics Society of Sri Lanka, University of Peradeniya, ISBN 995-130-811-7: 57-69

 

Amarasinghe SR and De Silva CS (2006) Water quality assessment of agro-wells in Vavuniya District for the use of Agricultural and Domestic purposes, Water Resources Research in Sri Lanka, Geo-Informatics Society of Sri Lanka, University of Peradeniya, ISBN 995-130-80-50: 41-54

 

Amarasinghe SR, Samarakoon SMAE, PGS Pallewatta (2019) Production of compost by means of eradicating invasive Water Hyacinth (Eichhornia crassipes) 14th International Conference of the East and Southeast Asia Federation of Soil Science Societies (ESAFS),Taipei, Taiwan Nov. 3-7, 2019

 

Madushanka PLA, Amarasinghe SR (2019) Assessment of water quality in Hambanthota district: a case study, Proceeding 7th Symposium on Water Quality and Human Health-Challenges Ahead. - Postgraduate Institute of Science, University of Peradeniya, Sri Lanka.

 

Amarasinghe SR, Pathibha, J. K. P. N., Randimal D., Perera U. M. V. S., Tharupath K. M. C., and Wijesinghe W. A. D. M., (2019) Assessment of Heavy Metal contamination and drinking water quality of drinking water sources in Kamburupitiya, Sri Lanka; A case study in Lenabatuwa and Iiriyathota GN divisions, 8th International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, p 129

 

Amarasinghe SR, (2019) Assessment of Heavy metals in Compost Produced from Invasive Water Hyacinth (Eichhornia crassipes) in Moragoda Canal, Galle, Sri Lanka, 16th Academic sessions, University of Ruhuna, Sri Lanka. p20

 

Amarasinghe SR, Perera PCD (2018) Iron Toxicity of Lowland Rice Cultivated Soils Immediately after Flash Floods in Mapalana and Nayimbala, Sri Lanka, Wayamba International Conference, WinC 2018, Wayamba University of Sri Lanka, 24-25 August 2018, p 103

 

Jayasekara LDSI, Renuka KA, Amarasinghe SR (2018) Comparative Evaluation of Some Soil Chemical Properties among Orchards and Natural Forest in Fruit Research and Development Institute, Horana 8th International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, p 24

 

Amarasinghe SR, Nisansala KA, and Wanniarachchi SD (2018) Nitrogen Mineralization Dynamics in an Ultisol of Sri Lanka with Two Different Organic Amendments and a Microbial Inoculant, 15th Academic sessions, University of Ruhuna, Sri Lanka p 52

 

Amarasinghe SR, Premanatha KPSD, Wanniarachchi SD (2017) Carbon and Nitrogen Mineralization of Different Soil Amendments in Ultisols, 22nd International Forestry and Environment Symposium, University of Sri Jayawardenepura, Sri Lanka. P 94

 

Amarasinghe SR, Premanatha KPSD, Wanniarachchi SD (2017) Assessment of Quality in Different Compost Mixtures by End-use Characterization, 22nd International Forestry and Environment Symposium, University of Sri Jayawardenepura, Sri Lanka. P 119

 

KA Nisansala, M Vithanage, WMLS Weerasundara, YB Jayawardana and SR Amarasinghe (2017) Evaluation of the Influence of Biochar and Compost on the Saline Soil Properties and Quality 7th International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, p 7

 

Sandarenu PC, Peramunagama SW, Samaraweera GC and Amarasinghe SR (2017), Evaluation of a Poly-plastic Collection System in Matara District, Sri Lanka: A case Study in Kamburupitiya Pradeshiya Sabha 7th International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, p141-143

 

Marasinghe MGTT, Amarasinghe SR, Wanniarachchi SD, and Fernando KR (2017) Assessment of heavy metal contamination of soil and surface water in the vicinity of landfill site at weligama, Matara, 4th Ruhuna International Science and Technology Conference (RISTCON 2017) p 59

 

Amarasinghe SR (2016) Attitudes of Households toward Home-made Compost Application in Kalutara Urban Council Area, 13th Academic sessions, University of Ruhuna, Sri Lanka. P 79

 

Amarasinghe SR, Wanniarachchi SD, Somasiri TT & Kumara DDN (2015) Impact of organic amendments and microbial inoculants on carbon mineralization in surface Ultisols, PGIS research congress, Post Graduate Institute of Science, University of Peradeniya, pp 22

 

Amarasinghe SR (2014) Evaluation of Solid Waste Disposal and Waste Management Awareness in Kalutara Urban Council Area: A case study, International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, pp 445-447

 

Amarasinghe SR (2014) Factors influencing willingness to pay for the improved solid waste management, 11th Academic sessions, University of Ruhuna, Sri Lanka

 

Amarasinghe SR, and Fernando HG (2013) Pro-environmental behavior regarding solid waste management in households of Kalutara urban council area: A case study, International Forestry and Environment Symposium, University of Sri Jayawardenepura, Sri Lanka pp 56

 

Amarasinghe SR, and Watanabe K (2012) Application of empirical models using evaporation method to estimate unsaturated hydraulic properties of soft rock (2012) International Forestry and Environment Symposium, University of Sri Jayawardenepura, Sri Lnaka pp 76

 

Amarasinghe SR, and Watanabe K (2012) Estimating unsaturated hydraulic properties by transient evaporation method in soft rock in Rokkasho area, Japan (2012) International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, Sri Lanka 154-156

 

Amarasinghe SR, and Watanabe K (2011) Inverse estimation of unsaturated hydraulic properties using evaporation measurement techniques in sandy soil. International Symposium on Agriculture and Environment, Faculty of Agriculture, University of Ruhuna, Sri Lanka pp 98

 

Groundwater quality and quantity assessment

 

Water resource management

 

Modelling of groundwater flow in porous media/solute transport

 

Genetic Algorithm

 

Waste Management

 

Soil, water pollution & pollution control