Browsing by Author "Jayawickrama, G.G.H"

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The consequences on the water quality of the Tissa Wewa tank in Anuradhapura
(Department of Geography, University of Kelaniya, Sri Lanka., 2020) Thilakarathna, N.D.C.J; Ekanayaka, E.M.M.G.S.K.K; Jayawickrama, G.G.H
Sri Lanka had the most complex irrigation system of the ancient world. Most of the great reservoir tanks still survive today. Thissa wewa is one of the unique features of the Anuradhapura district. Mainly it provides drinking water for more than 15,000 people living in 15 villages and governmental and private sector institutions in the Anuradhapura town area and is used for religious purposes. Exceeds one lakh to five pilgrims and others reach this place for various reasons. As a result of an excessive amount of their urine, and E-coli bacterium is added to the tank water. Due to that reason it mainly affects access to drinking water and other purposes. This study mainly investigates the consequences of the water quality of the Tissa Wewa. As a study area, selected Tissa Wewa and Mihindupura villages. 30 questionnaires given to villagers and pilgrims and interviewed 3 responsible institutions selected through a convenient sampling method. And by prosecuting secondary data also. Water consumers have to pay extra money for drinking water additionally tap line water. The present lake is polluted due to fertilizes, improper waste dumping, wastewater discharge, recreational activities are some of them. This paper also discusses the Impacts on aquatic life, cultural value, accessibility of drinking water, health effects especially Kidney Disease, economy, etc. The treatment plant is a mixed high level of cleaning agent for separate chemicals from the raw water and it is very harmful to the human body. This study ends by discussing new solutions to overcome those problems. Not polluting, appoint particular officers to protect that lake, policy and regulations must be hardened, proper solid waste management practices, proper wastewater treatment techniques, new regulations, regular quality testing programs with the support from CEA, interference of religious. To protect such kind of natural and cultural valuable lake systems should be paid adequate attention to responsible institutions and officers in Sri Lanka.
Negative environmental impacts of modern agricultural practices
(Department of Geography, University of Kelaniya, Sri Lanka., 2020) Jayawickrama, G.G.H
Negative environmental impacts, health problems, a different type of pollution are increased in the present world because of human activity. According to existent environmental reports, the agriculture sector is the dominant reason for it. Sri Lanka is an agricultural country in Asia. Paddy cultivation is a dominant economic factor in Sri Lanka. Dating back more than 2500 years, numerous people subsist life on agriculture. And also build the grate traditional culture with sir Lankan agriculture. Created positive, strong and inverse interrelationship between the environment and human activities. With time-consuming, increasing the population. The farmers have to increase the food production process to satisfying human needs and necessities. During the production process wasn’t adequate traditional agricultural practices. Accordingly, it created modern farming methods with the green revolution. The farmers use these modern agricultural practices to achieve the advance yield. Primitive, use chemical fertilizers and pesticides, use tractors, gene mutation. Although they can acquire the advance yield on the other hand, beginning the negative environmental effects accordingly distance the ecofriendly traditional agricultural practices. Therefor spring up soil pollution, air pollution, global warming, water pollution, not only pollution with negative environmental effects, but also health problems such as food poisoning, Neurologic effects, malnutrition, mutations, birth, and development defects. Those are very complicated problems in the world. However, we should try to manage this problem. According to the object, the researcher selected this topic, understand the Negative environmental impacts of modern agricultural practices.