Change search
ReferencesLink to record
Permanent link

Direct link
Kustnära ekosystem som skydd mot naturkatastrofer: en litteraturstudie från ett riskhanteringsperspektiv
Karlstad University, Faculty of Social and Life Sciences.
2013 (Swedish)Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesisAlternative title
Coastal Ecosystems as Protection against Natural Disasters : a literature review from a risk management perspective (English)
Abstract [en]

Research suggests that society's vulnerability to natural disasters along coasts could increase as a result of climate change, which is likely to lead to elevated sea levels and possibly an increase in the occurance of meteorological phenomena such as storms and tropical cyclones. Following the Indian Ocean tsunami disaster in 2004 and Hurricane Katrina in 2005, both of which received considerable media attention, empirical data has indicated that coastal vegetation might be able to protect and reduce damages to coastal communities during tsunami events and tropical cyclones.

The aim of the essay has been to study the function of coastal ecosystems as protection against tsunami waves and storms from a risk management perspective, meaning that I have, through an overview of scientific articles, compiled current research on how coastal ecosystems can attenuate storm surges and tsunami waves, and analysed how this knowledge can be put into practice in coastal communities from a risk management perspective, i.e. if coastal ecosystems are a viable risk reduction measure, are practically applicable, and if so, how they could be applied.

There is empirical evidence suggesting that coastal ecosystems, particularly mangroves, can reduce the strength of a tsunami wave, but full scientific consensus on this issue has not yet been reached. With regard to protection against storm surges, there is extensive scientific evidence that coastal vegetation can mitigate damages and reduce the height of a storm surge, although the wave has to traverse several kilometres inland through thick vegetation for the protection to be effective. A synthesis in the form of a figure regarding the many physical factors that influence wave development through coastal ecosystems has been created in an attempt to simplify and explain the phenomenon.

The conservation and restoration of coastal ecosystems can be justified from a risk management perspective, but planting new forest belts for the purpose of disaster mitigation is quite unrealistic and can rarely be sustainable, since, for protection to be effective, the forest belt must extend several kilometres inland from the coast, and would thus likely prove difficult to implement along coastal societies.

Place, publisher, year, edition, pages
2013. , 43 p.
Keyword [sv]
riskhantering, naturkatastrof, mangrove, saltvattenträsk, korallrev, klimat, våtmark, tsunami, stormflod, vågdämpning
National Category
Health Sciences
URN: urn:nbn:se:kau:diva-26956Local ID: RH:1OAI: diva2:616362
Subject / course
Public Health Science
Social and Behavioural Science, Law
Available from: 2013-04-22 Created: 2013-04-16 Last updated: 2013-04-22Bibliographically approved

Open Access in DiVA

fulltext(960 kB)612 downloads
File information
File name FULLTEXT01.pdfFile size 960 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Bonander, Carl
By organisation
Faculty of Social and Life Sciences
Health Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 612 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 335 hits
ReferencesLink to record
Permanent link

Direct link