Browsing by Author "Amarasinghe, A.G"

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Challenges related to solid waste management in Local Authorities of Sri Lanka (The case of Mawanella Pradeshiya Sabha area)
(Department of Geography, University of Kelaniya, Sri Lanka., 2020) Rajapaksha, R.S.A; Amarasinghe, A.G
Disposal of solid waste has become an environmental problem in Sri Lanka. This has posed a challenge for waste management. Solid waste management is one of the biggest challenges for Asian countries including Sri Lanka. The main objective of this study is to explore the challenges associated with solid waste management in the Mawanella Pradeshiya Sabha area. Three Grama Niladhari Divisions namely Uthuwankanda, Habbunkaduwa, and Mahawatta have been selected as the sample area in this study. Both primary and secondary data were used for this purpose. The questionnaires, interviews, and observations were used in this study. A sample of 30 households and shops from three Grama Niladhari Divisions were selected for the study. A structured questionnaire and unstructured interviews were used to collect data. When creating a database for data analysis, Microsoft Excel and GIS software were used. Food waste, polythene, plastic, and tin have been considered as waste material in this study. It has been calculated that 500g of waste was generated by a 750g of waste was produced by the shops. Solid waste management practices can reduce waste by 20%- 30% of the household and market waste. People’s attitudes must be changed to achieve this purpose. By educating the community on these issues and by informing the community on the social and environmental impact of waste disposal, these challenges of waste management can be reduced.
The Impact of coastal erosion on Dwellers in the vicinity of the zone: The case study of the Kalu Ganga Estuary
(Department of Geography, University of Kelaniya, Sri Lanka., 2020) Gunawardhana, P.D.N.D; Amarasinghe, A.G
Accented Coastal erosion has become the main environment a problem around. Many people around the world suffer from coastal erosion. The objective of this research is to identify the impact of coastal erosion on the life of people. The study area selected for the above research is the Kalutara North Grama Niladhari Division situated near the Kalu Ganga estuary. Data were collected through questionnaires from 30 randomly selected individuals. This information was also verified through a field study and group interviews. The Google Earth Pro was used to highlight the timely changes in localities. Tables, charts, and maps are presented using software such as MS Excel, Geographic Information System (GIS) to analyze the above information. The major cause of this problem is the estuary extensive enlargement of flood control, but the sand mining of the Kalu Ganga may not be sufficient to create a natural dune, and the operation of the sea waves also a reason for this issue. According to the data analysis, it has been identified that there is a huge impact on the lives of people living in the Kalu Ganga estuary. 70% of those surveyed identified that fishing and tourism had a major impact. Thus According to minimize the aforementioned impact on these people, they need to create other employment opportunities. The rules to reduce coastal erosion should be strengthened and the public should be made aware of these issues.