Shoreline fluctuation of dong Tranh river, Can Gio district, Ho Chi Minh city in the background of the climate variability
Relevance. Mangrove forests, especially thriving in the Mekong Delta and Ca Mau, play an important role in the ecosystem of southern Vietnam. A typical example is Can Gio mangrove forest in Ho Chi Minh City with an area of 35000 hectares, known as the "green lung" of the city. However,...
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2025-04-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
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| Online Access: | https://izvestiya.tpu.ru/archive/article/view/4677 |
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| Summary: | Relevance. Mangrove forests, especially thriving in the Mekong Delta and Ca Mau, play an important role in the ecosystem of southern Vietnam. A typical example is Can Gio mangrove forest in Ho Chi Minh City with an area of 35000 hectares, known as the "green lung" of the city. However, recently, the effects of climate change have made erosion worse due to changes in hydrodynamics and extreme weather events, leading to the shrinking forest areas. This affects not only the tourism industry but also aquaculture activities in the area. Aim. This study focuses on providing updated information on erosion and deposition at Dong Tranh estuary, Can Gio District. Through this analysis, management agencies will have more basis to propose effective measures to protect and develop this area, especially in the increasingly complex climate change situation. Methods. Shoreline extraction method in combination with GIS to calculate the coastline change and combines with field surveys to check and analyze results, helping to clarify the causes of erosion and deposition. Results. Within the framework of the study, areas 2 and 3 were identified as places strongly influenced by waves and tides, with serious erosion levels, especially in the Nang Hai area with erosion rates reaching –3.9 m/year. In contrast, area 1, mainly influenced by Dong Tranh River, recorded a significant deposition rate, reaching 7.05 m/year. The results of this study are valuable as an important reference source, supporting the management and consolidation of coastlines, and proposing effective protection measures to limit erosion.
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| ISSN: | 2500-1019 2413-1830 |