Changes in mangrove areas and quality in Tien Yen district, Quang Ninh province between 2000 and 2020 were evaluated by using remote sensing and GIS with Landsat data. The study results showed that the total mangrove area in Tien Yen district decreased by 89.4 ha from 2000 to 2020, of which 47.6 ha of mangrove forest were lost in 2010 - 2020. Mangrove quality had also substantially degraded in Tien Yen district, especially in Dong Ngu commune with the highest mangrove degradation rate (46 %). Hai Lang, Dong Hai and Tien Lang communes had mangrove degradation rates of 27.2 %, 23.6 % and 16.5 %, respectively. Dong Rui commune had the lowest mangrove degradation rate (16.2 %). The major reason for the degradation of mangrove areas and quality in Tien Yen district was the conversion of mangroves to aquaculture, agriculture and infrastructure. Hence, comprehensive socio - economic and technological solutions are required to preserve and develop mangrove forests there. Plans for mangrove conservation must be integrated with those for regional socio - economic development.
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. Gorelick N., Hancher M., Dixon M et al. (2017). Google Earth Engine: Planetary - scale geospatial analysis for everyone. Remote Sens Environ 202:18 - 27.
. Hạt kiểm lâm huyện Tiên Yên (2019). Báo cáo công tác kiểm kê rừng huyện Tiên Yên, tỉnh Quảng Ninh từ năm 2000 đến năm 2019.
. Meneses - Tovar C. L. (2011). NDVI as indicator of degradation. Unasylva 238, Vol. 62, 2011/2.
. Nguyễn Hải Hòa (2016). Ứng dụng viễn thám Landsat đa thời gian và GIS đánh giá biến động diện tích rừng ngập mặn ven biển huyện Tiên Yên, tỉnh Quảng Ninh giai đoạn 1994 - 2015. Tạp chí Khoa học Lâm nghiệp 1/2016: 4208 - 4217.
. Tinh P. H., MacKenzie R. A., Hung T. D et al. (2022). Distribution and drivers of Vietnam mangrove deforestation from 2000 to 2020. Mitig Adapt Strateg Glob Change 27: 29.