Social Sciences
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Item Negative Environmental Impacts of Beach Tourism: With special reference to Unawatuna coastal area(Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2016) Rathnayake, S.Beach tourism is one of the main environmental based tourism product since tourism started as an industry in Sri Lanka. There is a non-breakable bond between environment and tourism. Therefore it is important to identify impacts on the environment due to the tourism industry. The main objective of this research was to identify the negative environmental impacts of beach tourism. The research question was “what kind of environmental negative impacts can be seen in coastal areas due to beach tourism?” Unawatuna was selected as a study area because this coastal area was named as one of the best beaches in the world and highly engaged with tourism industry since the colonial period. Therefore many environmental negative impacts can be seen related to Unawatuna beach area. Field observations and interviews used as primary sources of data collecting methods. The sample was randomly selected at the site. Problems related to waste products and marine water pollution, negative impacts on coastal flora and fauna, exceeding carrying capacity, visual pollution, weakness of common facilities and coastal erosion are the problems related to study area. Establishing green hotels and green belts, developing visitor facilities, introducing the proper wastage management system and handling Environmental Impact Assessment Surveys before every development projects are some recommendations for avoiding negative impacts of beach tourism.Item Medicinal values of plants that are habitat to coastal areas of Sri Lanka: A literary study(Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2015) Gunaratna, T.A.N.R.; Samarathunga, D.K.; Liyanage, J.A.Herbs cover the complete range of growth habits and sizes of plants. As a tropical country there are several plants available in Sri Lanka’s coastal areas that are habitat in large scale. Borassus flabellifer, Cocos nucifera, Ipomoea pes-caprae, Pandanus tectorius and Calotropis gigantea are the plants and creeping vines which are available in large range. They are rich in pharmacodynamics, mentioned in Ayurveda authentic books and as well as in the details of Sri Lankan oral tradition. But none of that information is famous among Sri Lankans. This literary study was conducted to identify the medicinal values Borassus flabellifer, Cocos nucifera, Ipomoea pes-caprae, Pandanus tectorius and Calotropis gigantea which are habitat to the coastal part of Sri Lanka for conservation, sustainable development of natural medicines and share the benefits of their medicinal value. Study was based on the Ayurveda and Sri Lankan traditional authentic books and findings related to the plants were considered and analyzed. According to the results obtained, pacts of whole plant’s parts such as flowers, leaves, bark, roots and fruits have medicinal values and they are used for medicines. Every plant has pharmacodynamic actions which are related to Nerve system, Gastro intestinal system, Respiratory system, Blood circulatory system, Urinary system, Reproductive system and Immune system. Results emphasize the medicinal utility of Borassus flabellifer, Cocos nucifera, Ipomoea pes-caprae, Pandanus tectorius and Calotropis gigantea and it is essential to bring it up to the Sri Lankan society for the enhancement of natural medicine through the natural resources.