• Assessing the willingness to pay of fishermen, Biologists and Engineers tor Sustainable Management of Thondamanaaru Lagoon in Jaffna District Sri Lanka 

  Sooriyakumar, K.; Sivashankar, S.; Sarujan, S.; Nithila, K.; Kiriyaliny, V.; Selvana, S.; Anushiya, S. (International Lake Environment Committee Foundation, 2025)

  As one of the prominent lagoons in northern Sri Lanka, the Thondamanaru lagoon provides a wide range of ecosystem services that are highly valued by society. However, the state intervention of barrage closure to prevent ...
• Analysis of Paddy Price fluctuations in the Ampara District of Sri Lanka 

  Sooriyakumar, K.; Ahamed, M.M.M. (Faculty of Agriculture, University of Jaffna, 2025)

  This study addresses the limited research on district-level paddy price fluctuations in Ampara, a key rice-producing region in Sri Lanka, which has been overlooked in favor of national-level analyses. It aims to analyze ...
• Determinants of Foreign Direct Investment in Sri Lanka 

  Sooriyakumar, K.; Perera, S.P.M.P.; Sarujan, S. (University of Colombo Institute for Agro-Technology and Rural Sciences – Sri Lanka, 2025)

  This study examines the macroeconomic determinants of Foreign Direct Investment (FDI) inflows in Sri Lanka over the period from 1970 to 2022. Key variables analyzed include FDI net inflows (as a percentage of GDP), exchange ...
• Assessing Local Fishing Communities’ Willingness to Pay for Reducing Faecal and Oil Pollution in the Negombo Lagoon 

  Sooriyakumar, K.; Dissanayake, T.G.D.S.; Sivashankar, S.; Kamshajini, R. (University of Sri Jayewardene, Sri Lanka, 2025)

  The Negombo Lagoon is one of the economically important coastal areas in Sri Lanka, however, it faces challenges due to faecal and oil pollution. Faecal and oil pollution not only affect the water quality but also threaten ...
• Biologist’ Willingness to Pay for Thondamanaru Lagoon Ecosystem Management: A Choice Experiment Approach 

  Sooriyakumar, K.; Nithila, K.; Sivashankar, S.; Sarujan, S. (Jaffna Science Association, 2025)

  Thondamanaru lagoon is in the Northern part of Sri Lanka and is one of the most important lagoons in the country. Barrage was built in the lagoon to prevent groundwater salinity in Thondamanaru lagoon; however, this barrage ...
• Engineers’ Valuation of Ecosystem Services in Thondamanaru Lagoon: A Choice Experiment Approach 

  Sooriyakumar, K.; Kiriyaliny, V.; Sivashankar, S.; Sarujan, S. (Jaffna Science Association, 2025)

  Thondamanaru Lagoon is a brackish water lagoon located in the northern part of Sri Lanka. The Department of Irrigation built a barrage to prevent seawater from entering the lagoon; however, this barrage construction ...
• Understanding local fishermen’s preferences and willingness to accept compensation for commercial sea cucumber farming in the Jaffna lagoon, Sri Lanka 

  Sooriyakumar, K.; Sivashankar, S.; Balamauran, R.; Sarujan, S. (Applied Ecology and Environmental Research, 2025)

  This study examines the willingness of local fishermen to accept compensation for establishing commercial sea cucumber farms in the Jaffna Lagoon, Sri Lanka. A choice experiment was used to assess preferences for key ...
• Household Demand for Disaggregated milk products in Sri Lanka: A censored QUAIDS model approach 

  Sooriyakumar, K.; Sivakumar, S.; Renwick, A.; Yang, W. (Emerald Publishing, 2025)

  Purpose - Liquid milk has a higher nutritional value than powdered milk; however, Sri Lankans consume more powdered milk than fresh liquid milk. To increase domestic liquid milk consumption in Sri Lanka, it is vital to ...
• Technical efficiency and performance of the inland fisheries sector in Mannar District of Sri Lanka 

  Umashankar, K.; Luxon Reval, S. (National Aquatic Resources Research & Development Agency (NARA), 2015)

  This research has taken effort to quantify the technical efficiency of the inland fisheries sector in the Mannar district and to identify important socio-economic factors which determines final harvest of the fishermen. A ...
• Groundwater Use Efficiency of Micro Irrigation System in Jaffna Peninsula 

  Umashankar, K.; Arunkumar, P. (Postgraduate Institute of Agriculture and Geo- Informatics Society of Sri Lanka, 2012)

  Besides being used for drinking, a large portion of fresh water is exhausted by way of irrigation. By adopting modern technology in irrigation, the squandering of fresh water in agriculture could be greatly minimized. ...
• Value Chain Performance and the Socio-economic Factors that Influence Market Supply of Guava in Anuradhapura District - Sri Lanka 

  Umashankar, K.; Upamalika, K.V.A.M.; Shantha, W.H.A. (Sri Lanka Agricultural Economics Association, 2020)

  Fruit and vegetable production have the potential to make a substantial contribution towards the commercialization of the rural economy of Sri Lanka, by improving the income and viability of the peasant farmer. Guava is a ...
• Effects of Improved Management Practices on Production of Fresh Milk Among Small Holder Dairy Farms Operating in a Dairy Chain in Kilinochchi District, Sri Lanka 

  Umashankar, K.; Prasath, S. (Sri Lanka Agricultural Economics Association, 2020)

  In the dry zone of Sri Lanka, dairy farms are owned and operated predominantly by smallholders whose management practices are rather arbitrary resulting in low milk yields. In Poonakari Division of the Kilinochchi District, ...
• Risk Bearing Ability: Determinants of Climate Change Resilience among the Most Vulnerable Small Holder Coconut Planter Communities in Kurunegala District 

  Umashankar, K.; Dissanayake, P.C.D.A. (Sri Lanka Agricultural Economics Association, 2019)

  Small holder coconut cultivators, which accounts for 99% of the market share, with their limited resources and small levels of production tend to bear adverse effect of the climate change. The effect of climate change ...
• Influence of the Socio-economic Factors on the Credit Accessibility of Micro Level Poultry Farming Households in Peninsular-Jaffna 

  Umashankar, K.; Neduncheliyan, S. (Sri Lanka Agricultural Economics Association, 2018)

  The civil unrest of the recent past destroyed the life style of the people, while decimating the infrastructure and rendering robust and persevering people disabled and dead. Consequently, in many households' women being ...
• Determinants of the Socio-economic status of the Sea Food Harvesting Communityof Peninsular, Jaffna 

  Umashankar, K.; Shalton, A.R. (Sri Lanka Agricultural Economics Association, 2018)

  Considering the Northern coastal belt of the Island, it could be seen that the Peninsular coastline is quite adapt in sustained sea food harvesting for a substantial length of time. A community which endured hardship, and ...
• What Matters Make Kilinochchi Paddy Cultivators to Thrive? 

  Umashankar, K.; Luxan, M. (Sri Lanka Agricultural Economics Association, 2016)

  Besides being a part of the household diet in Sri Lanka rice is the staple food and, the highest cultivated crop in Sri Lanka. Thus elevation of resilience is both theoretically and practically the most consistent and ...
• Competitiveness of the Baking Industry in the Northern Province of Sri Lanka 

  Umashankar, K.; Jathukulan, S. (Sri Lanka Agricultural Economics Association, 2016)

  As far as Sri Lanka is concerned the SME sector is the backbone of the nation. It contributes to the development of the country on a massive scale while opening up avenues for employment for the community at large. Albeit ...
• Determinants of Risk Behaviour of Banana Cultivators: A Case Study in Jaffna Peninsula of Sri Lanka 

  Umashankar, K.; Mythreaji, K. (Sri Lanka Agricultural Economics Association, 2015)

  It is widely recognized that a high level of uncertainty exemplifies the lives of farm households in developing countries. Jaffna district, located in the Northern part of Sri Lanka, has been ravaged by war in the last ...
• Degree of Vulnerability of Agriculture Oriented, Female Headed Households: Comparative Study with Evidence from Peninsular Jaffna 

  Umashankar, K.; Tharsana, K. (Sri Lanka Agricultural Economics Association, 2015)

  Agriculture and seafood harvesting are the main industries of the Northern province of Sri Lanka and many families in these professions have lost all their belongings and are destitute trying to survive. Some of these ...
• Influence of communication skill in choosing the most viable and profitable marketing channel for red onion farmers in Jaffna district 

  Umashankar, K.; Latha, U. (Sri Lanka Agricultural Economics Association, 2014)

  Information seeking behavior of farmer plays a vital role in opening up market opportunities. This behavior influences farmers' decision to choose a most profitable marketing channel. This, study was conducted t to identify ...

View more