Land degradation analysis on Coastal Area of Ampara District

• Autorzy: Kaleel M.I.M.
• Języki publikacji: EN

Abstrakty

EN

The island of Sri Lanka is free from serious natural hazards such as volcanic activity and earthquakes resulting from climatic extremes, but there are impacts of many natural disasters, such as landslides, floods and droughts, the intensity and frequency of which are increasing due to human interventions. Some areas of Sri Lanka are also periodically subject to cyclones that occur due to climatic conditions and geographical locations. Land degradation denotes all natural or anthropogenic processes that diminish or impair productivity of land. This occurs mainly through soil erosion, loss of organic matter and nutrients in the soil; salinization and large scale land degradation in Sri Lanka. Its manifestations today are heavy loss of soil, siltation in the water bodies, reservoirs and coastal waters, unplanned settlements, loss of arable land leading to declining productivity in agricultural lands and intensification of impacts of natural hazards such as flooding and landslides. Land degradation is a major problem in Eastern Coastal Area from Kalmunai MC, Karaitivu and Nintavur Divisional Secretariat Divisions (DSDs) of Ampara District. However, there is a considerable spatial heterogeneity exists within this area in terms of land use, topography, land management and socio-economic conditions. Therefore, land degradation assessment studies are very important for the sustainable development of the area. Considering the above background, this study was conducted with the objectives of developing a land degradation assessment model using a GIS based approach.

Słowa kluczowe

EN

Sri Lanka; coastal area; land degradation; salinization; soil salinity; soil erosion; population density; Geographic Information System; 1981-2014 period

• Wydawca: -
• Czasopismo: International Letters of Natural Sciences
• Rocznik: 2016
• Tom: 53
• Opis fizyczny: p.80-86,fig.,ref.

Twórcy

autor

Kaleel M.I.M.

• Senior Lecturer in Geography, Department of Geography, South Eastern University of Sri Lanka, Sri Lanka

Bibliografia

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• [4] State of Environment in Sri Lanka, Land Degradation and Natural Hazards in Sri Lanka. Environmental Economics and Global Affairs Division, The Ministry of Environment and Natural Resources, Colombo, Sri Lanka, pp 61-72 (2002).
• [5] S. B. St. C. Swan, Coast Erosion Principles and a Classification of South-West Ceylon a beaches on the bias of their Erosional Stability. Bullcey Geogr, Soc. Vol.19 (1965).
• [6] L. Venkataratnam and T. Ravisankar, Remote Sensing for Soils and Land Degradation. BSP.BS Publication, Hyderabad, 4-4-309:158-168 (2003).
• [7] S. Wijesekera, and L. Samarakoon, Extraction of parameters and modeling soilerosion using GIS in a GRID environment (2001), Retrieved September 27, 2007, from internet: http://www.crisp.nus.edu.sg/~acrs2001/pdf/169wijes.
• DOI References
• [4] State of Environment in Sri Lanka, Land Degradation and Natural Hazards in Sri Lanka. Environmental Economics and Global Affairs Division, The Ministry of Environment and Natural Resources, Colombo, Sri Lanka, pp.61-72 (2002). 10.1163/2213-2996_flg_com_174119

Identyfikatory

DOI

10.18052/www.scipress.com/ILNS.53.80