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Ananda Karunarathne 서울대학교 국토문제연구소 2017 地理學論叢 Vol.64 No.-
Municipal solid waste (MSW) management is possible to be identified as one of the mostly cited fields in the optimization applications. This is because optimization of solid waste management is most general in contemporary research applications as the issue is being becoming more complex and impasse with rapidly increasing of urban population particularly in the developing world. Optimal site selection is to be identified as one of the famous facility location problems in the discipline of location science. With a range of growing impediments, such as scarcity of suitable lands for dumping, increasing of transportation and labour costs, diversifying of environmental pollutions etc, the application of optimization approaches on municipal solid waste management has been very famous among scholars and policy planners. The city of Colombo is a famous rapidly growing and propelling city in the South Asia. This is because many forms of internal migration flows can be seen into the city of Colombo. On this background, daily tonnage of solid waste accumulation has been augmented exponentially. At present, the issue has been become one of the burning dilemmas in the city. In this context, the purpose of this paper is to identify the potential, optimal and safe sites for SMW management in the city of Colombo by using GIS and Analytic Hierarchy Process (AHP). The study used mainly five criteria (Inhabited and build-up areas, Slopes, Elevation, Water bodies, and Road categories) and different constraints for each of them in terms of the optimal and safe site selection mechanism. The AHP approach is applied in order to obtain acute factor scoring and weighting scheme. Finally, the study used Weighted Overlay method in ArcGIS 10.2 environment for the optimal and safe site selection. The analyses of the results are revealed that six vacant sites are available and they are potentials to be used as optimal and safe sites for the MSW management practices. The study suggests that the preliminary sites investigations are needed to be done in order to clarify the ownerships and land valuation in advance.
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Ananda Karunarathne 서울대학교 국토문제연구소 2016 地理學論叢 Vol.62 No.-
At present, most of economists and also experts have being made their extra ordinary attention on the theme of development of developing countries. Most of developing countries are now experiencing many kinds of changes in their economies. However, the problem is meanwhile they have to face other impediments in plenty which are belonged to their underdevelopment status. Sri Lanka is as a South Asian developing country has unique changes in its economic structure particularly after the introduction of open economy system in 1977. Based on the British colonial establishments, the country’s main exports are agriculture products. However, after the open economy system, the secondary export earnings have been proliferated. Particularly, garment productions made predominant contribution to the export sector. For an instance, since 1950 to 2014, the industry sector has been increased from 19.6% to 32.3% while agriculture sector has been declined from 46.3% to 10.1%. In these circumstances, the garment sector acted as the centripetal force to create hundreds of thousands job opportunities particularly in rural areas. Meanwhile, the thirty years of civil war made an irreparable lost to the country in both the physical and human properties. After end of the war in 2009, the country has a big gaining momentum to proliferate her economy with rejuvenation by considering the existing ‘demographic dividend’ and ‘peace dividend’ as windfalls of success.
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