Ứng dụng công nghệ bay không người lái để quản lý rừng ngập mặn, nghiên cứu cụ thể tại vườn quốc gia Xuân Thủy, Nam Định=Application of unmanned aerial vehicle to mangrove forest management, a case study in Xuan Thuy national park, Nam Dinh

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Tác giả: Huy Hoàng Nguyễn, Thị Xuân Thắng Nguyễn, Tiến Dũng Phạm, Thị Mai Sen Trần

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Kỹ thuật Thủy lợi và Môi trường, 2020

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ID: 471248

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Bài báo này sẽ trình bày nghiên cứu áp dụng công nghệ bay không người lái (UAV) tại Vườn Quốc Gia Xuân Thủy, Nam Định để đánh giá khả năng áp dụng công nghệ mới này trong quản lý lớp phủ thảm thực vật rừng ngập mặn. Dữ liệu UAV được thu thập vào đợt bay các tháng 3/2018 và 3/2019, tập trung vào khu vực rừng tự nhiên gần chòi canh, ven cửa sông và rừng trồng Bãi Trong. Phần mềm mã nguồn mở OpenDroneMap được sử dụng để xử lý hình ảnh UAV. Kết quả cho thấy rừng tự nhiên sinh trưởng tốt trong khi rừng trồng tại Bãi Trong (chủ yếu là rừng Trang) có hiện tượng suy giảm chất lượng. Đường bay với chiều cao bay, khoảng cách giữa hai tuyến bay, thời gian chụp ảnh hưởng lớn đến mức độ thành công của quá trình xử lý hình ảnh cây rừng. UAV thực sự là công cụ hỗ trợ hiệu quả cho người quản lý, giúp đánh giá nhanh, kịp thời chất lượng RNM, đặc biệt tại các khu vực xa xôi, biệt lập, khó tiếp cận so với phương pháp truyền thống. Từ khóa Thiết bị bay không người lái (Unmanned Aerial Vehicle- UAV), Rừng ngập mặn (RNM), Vườn Quốc Gia Xuân Thủy (VQGXT)This research article employed unmanned aerial vehicle (UAV) to map the mangrove cover management in Xuan Thuy National Park. UAV data was collected in March 2018 and 2019, focusing on buffer areas of the natural mangrove forests adjacent to the guarding, along the estuary and planted mangrove forests in Bai Trong. OpenDroneMap- as open source software- was used to mapping UAV images. Research results showed that se-lected areas of the natural mangrove forests that have grown healthy while the area of the planted mangrove forest in Bai Trong appeared to decrease quality, mainly occurred in Kandelia obovata. UAV routes, including height, distance between two Z turn-routes, shooting time that have remarkable influences on the success of the images mapping out of se-lected mangrove forests. Therefore, UAV is applied as an effective tool support for managers, helping to quickly and precisely assess mangrove cover, especially in remote, isolated and hard-to-access areas compared to conventional field study approach. Keywords Unmanned Aerial Vehicle- UAV, Mangrove forests, Xuan Thuy National Park.

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