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2017 | 07 |

Tytuł artykułu

The Impact on wetlands: a study based on selected areas in Ampara district of Sri Lanka

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Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Wetlands are normally deemed areas where water covers soil all or part of the time. Wetlands are important because they protect and improve water quality, provide fish and wildlife habitats, store floodwaters and maintain surface water flow during dry periods. According to the Ramsar convention, wetlands are defined as "Areas of marsh, fen, peat land or water, whether natural or artificial, permanent or temporary with water that is static or flowing, fresh, brackish or salt, including areas of marine water the depth of which at low tide does not exceed six meters." (Ramsar convention, 1971). In Ampara District of Eastern Province, Kalmunai Municipality, the Karaitivu and Nintavur areas have some significant quantities of wetlands. However, increased population, construction works, town expansion and negligence have generated considerable damage to these. Thus, this research was conducted to identify the negative human impact on these wetlands. In so-doing, the following objectives were met: ‘to find the challenges to wetland existence to note changes in the study area, to find the factors for the wetland deterioration and to suggest solutions to wetland conservation’. Primary and secondary data were used for this study. As primary data, questionnaire survey and direct observation were used. As secondary data, books, magazines, previous researches and statistics were used. The collected data were analyzed using SPSS and GIS software and suggest the practice of remedial measures such as creating proper waste management systems and enhancing the awareness of the value of the wetlands.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

07

Opis fizyczny

p.16-25,fig.,ref.

Twórcy

  • Department of Geography, Faculty of Arts and Culture, South Eastern University of Sri Lanka, Oluvil, Sri Lanka

Bibliografia

  • [1] W. Peter, French, (1997). Coastal and Estuarine management, Routledge, New fetter Lane, London. Pp. 134-164.
  • [2] Klrwan, M. L. & Mudd, S. M. Response of salt-marsh carbon accumulation to climate change. Nature 489, 550-553 (2012)
  • [3] Deegan, L. A. et al. Coastal eutrophication as a driver of marsh loss. Nature 490, 388-392 (2012).
  • [4] Howes, N. C. et al. Hurricane-Induced failure of low salinity wetlands. Proc. Natl Acad. Sei. USA 107, 14014-14019 (2010).
  • [5] Nlcholls, R. J. Coastal megacltles and climate change. GeoJournal 37, 369-379 (1995).
  • [6] Gedan, K. B., Silliman, B. R. & Bertness, M. D. Centuries of human-driven change in salt marsh ecosystems. Annu. Rev. Mar. Sei. 1, 117-141 (2009).
  • [7] Lotze, H. K. et al. Depletion, degradation, and recovery potential of estuaries and coastal seas. Science 312, 1806-1809 (2006).
  • [8] Robert J. Nicholls. Coastal flooding and wetland loss in the 21st century: changes under the SRES climate and socio-economic scenarios. Global Environmental Change, Volume 14, Issue 1, April 2004, Pages 69-86
  • [9] Joseph E. Mbaiwa. Enclave tourism and its socio-economic impacts in the Okavango Delta, Botswana. Tourism Management, Volume 26, Issue 2, April 2005, Pages 157-172
  • [10] Joseph E. Mbaiwa. The socio-economic and environmental impacts of tourism development on the Okavango Delta, north-western Botswana. Journal of Arid Environments, Volume 54, Issue 2, June 2003, Pages 447-467
  • [11] Barbier, E. B. et al. The value of estuarine and coastal ecosystem services. Ecol. Monogr. 81, 169-193 (2011)
  • [12] Kirwan, M. L. et al. Limits on the adaptability of coastal marshes to rising sea level. Geophys. Res. Lett. 37, L23401 (2010)
  • [13] Mudd, S. M., DAIpaos, A. & Morris, J. T. How does vegetation affect sedimentation on tidal marshes? Investigating particle capture and hydrodynamic controls on biologically mediates sedimentation. J. Geophys. Res. 115, F03029 (2010)
  • [14] Klrwan, M. L. & Temmerman, S. Coastal marsh response to historical and future sea-level acceleration. Quat. Soi. Rev. 28, 1801-1808 (2009).

Typ dokumentu

Bibliografia

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