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| Titel |
The Study of Coastal Buffer Zone in Taiwan for Conception of Coastal Environment Recovery and Protection |
| VerfasserIn |
Yi-Ting Li, Yuan-Jyh Lan, Tai-Wen Hsu |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250031688
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| Zusammenfassung |
| The coastal environment is sensitive in terms of ecology, geology and natural hazards. The
coastal zone is also an area of multiple uses which competing with each other for specific
purpose or benefit. In order to achieve the goal of sustainable development and minimize the
potential conflicts among various uses in the coastal areas, the concept on "coastal buffer
zone" has been proposed and discussed as a major theme at numerous international forums.
During the process of recent economic development in Taiwan, population increases and
activities expanded from the narrow coastal region to the ocean’s edge. Watson (2000)
reported one such scenario at Jimmy’s beach in Port Stephen, New South Wales, Australia, in
which part of the foreshore had been subjected to chronic erosion caused by land
development too close to the edge of an inland sea without pretesting stability of the
coast.
Based on the coastal hydrodynamics, this paper presents a technical method for
establishing the coastal buffer zone. Howmeiliao Coast is an illustrative example for present
study. An experimental run-up formula and the SBEACH model are performed to determine
the onshore and offshore demarcations, respectively. Using present technical method together
with conditions of 50-year recurrence period of typhoon waves and average maximum tides,
variation of coastal profiles are calculated. Dynamic simulations for various coastal profiles
and analysis of physical quantities related to beach changes, together with calculations from
run-up model, the coastal buffer zone on ocean and land interfacial area are then
determined. Finally, we focus the subject of management of coastal disaster and
mitigation by technical, planning and management policy. It is necessary to achieve
the balance between economic development and environmental conservation in
order to carry out the target of sustainable development of coastal buffer zone. |
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