Mangrove vegetation changes and shoreline erosion along the central coastline of Vietnam: A study from Quang Ngai province

IF 4.7 2区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Environmental Development Pub Date : 2024-09-19 DOI:10.1016/j.envdev.2024.101065
Bijeesh Kozhikkodan Veettil , Xuan-Linh Tran , Manoela Sacchis Lopes
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Abstract

Mangrove forests along the Vietnamese coastline provide multiple ecological, environmental, and economic services, including being a habitat for different flora and fauna, shoreline protection from erosion, storms, and waves, and providing several raw materials for industries. The coast of Quang Ngai province in Central Vietnam didn't get much attention from the research community, particularly on the mangrove reforestation programs and coastal environmental changes in the province. In the present study, we investigated the shoreline changes in Quang Ngai Province since the late 1980s, recent mangrove reforestation initiatives, and its progress in the area using medium-resolution Landsat imagery series and Sentinel-2 data. The results were compared with mangrove areas estimated from high-resolution RapidEye and PlanetScope imagery for accuracy analysis. There has been a slight increase in the area occupied by mangroves along the Quang Ngai coast between 2007 and 2022 compared to the area of mangrove patches in the 1980s. An increase in the area of inland mangroves offers various ecosystem services to the regional community, improvement in livelihood, and quality of environment. Our results indicated that the erosion-accretion changes along the coast of Quang Ngai were not unique and that some areas, such as the urbanized northern part, have eroded higher than southern areas except where sediment supply from larger rivers in the province is high. The mangroves planted in Bau Ca Cai wetlands indicated a success and such initiatives can be conducted throughout the south-central coast of Vietnam for long-term coastal protection.
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越南中部海岸线红树林植被变化与海岸线侵蚀:广义省研究
越南海岸线上的红树林提供了多种生态、环境和经济服务,包括不同动植物的栖息地,保护海岸线免受侵蚀、风暴和海浪的侵袭,以及为工业提供多种原材料。越南中部广义省的海岸并未受到研究界的广泛关注,尤其是该省的红树林造林计划和海岸环境变化。在本研究中,我们利用中分辨率 Landsat 影像系列和 Sentinel-2 数据调查了广义省自 20 世纪 80 年代末以来的海岸线变化、近期的红树林造林计划及其在该地区的进展情况。研究结果与根据高分辨率 RapidEye 和 PlanetScope 图像估算的红树林面积进行了比较,以进行精度分析。与 20 世纪 80 年代的红树林斑块面积相比,2007 年至 2022 年期间广义沿海地区的红树林面积略有增加。内陆红树林面积的增加为该地区社区提供了各种生态系统服务,改善了生计和环境质量。我们的研究结果表明,广义省沿海地区的侵蚀-增生变化并非独一无二,除了该省较大河流的泥沙供应量较高的地区外,一些地区(如城市化的北部地区)的侵蚀程度高于南部地区。在 Bau Ca Cai 湿地种植的红树林取得了成功,此类举措可在越南中南部沿海地区推广,以实现对海岸的长期保护。
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来源期刊
Environmental Development
Environmental Development Social Sciences-Geography, Planning and Development
CiteScore
8.40
自引率
1.90%
发文量
62
审稿时长
74 days
期刊介绍: Environmental Development provides a future oriented, pro-active, authoritative source of information and learning for researchers, postgraduate students, policymakers, and managers, and bridges the gap between fundamental research and the application in management and policy practices. It stimulates the exchange and coupling of traditional scientific knowledge on the environment, with the experiential knowledge among decision makers and other stakeholders and also connects natural sciences and social and behavioral sciences. Environmental Development includes and promotes scientific work from the non-western world, and also strengthens the collaboration between the developed and developing world. Further it links environmental research to broader issues of economic and social-cultural developments, and is intended to shorten the delays between research and publication, while ensuring thorough peer review. Environmental Development also creates a forum for transnational communication, discussion and global action. Environmental Development is open to a broad range of disciplines and authors. The journal welcomes, in particular, contributions from a younger generation of researchers, and papers expanding the frontiers of environmental sciences, pointing at new directions and innovative answers. All submissions to Environmental Development are reviewed using the general criteria of quality, originality, precision, importance of topic and insights, clarity of exposition, which are in keeping with the journal''s aims and scope.
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