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| Titel |
Application of remote sensing and GIS for detection of long-term mangrove shoreline changes in Mui Ca Mau, Vietnam |
| VerfasserIn |
V. Tran Thi, A. Tien Thi Xuan, H. Phan Nguyen, F. Dahdouh-Guebas, N. Koedam |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 11, no. 14 ; Nr. 11, no. 14 (2014-07-21), S.3781-3795 |
| Datensatznummer |
250117517
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| Publikation (Nr.) |
 copernicus.org/bg-11-3781-2014.pdf |
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| Zusammenfassung |
| Mui Ca Mau at the southern tip of Vietnam supports a large area of mangroves
and has a high value for biodiversity and scenic beauty. This area is
affected by erosion along the East Sea and accretion along the Gulf of
Thailand, leading to the loss of huge stretches of mangroves along the East
Sea and, in some cases, loss of environmental and ecosystem services provided
by mangroves. In this study, we used remotely sensed aerial (1953), Landsat
(1979, 1988 and 2000) and SPOT (1992, 1995, 2004, 2008, 2009 and 2011)
images and the Digital Shoreline Analysis System (DSAS) to quantify the rate
of mangrove shoreline change for a 58 yr period. There were 1129 transects
sampled at 100 m intervals along the mangrove shoreline and two statistical
methods, namely end point rate (EPR) and linear regression rate (LRR), were
used to calculate the rate of change of mangrove shorelines and distance from
1953 to 2011. The study confirms that erosion and accretion, respectively, are
significant at the East Sea and Gulf of Thailand sides of Mui Ca Mau. The East Sea
side had a mean erosion LRR of 33.24 m yr−1. The accretion trend at the
Gulf of Thailand side had an average rate of 40.65 m yr−1. The
results are important in predicting changes of coastal ecosystem boundaries
and enable advanced planning for specific sections of coastline, to minimize
or neutralize losses, to inform provincial rehabilitation efforts and reduce
threats to coastal development and human safety. |
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