Xây dựng bản đồ hiện trạng rừng phòng hộ Núi Cậu - Dầu Tiếng, tỉnh Bình Dương=Forest status mapping in Nui Cau - Dau Tieng protection forest, Binh Phuoc province

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Thị Ngoan Trần, Minh Hoàn Võ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học và Công nghệ Lâm nghiệp, 2024

Mô tả vật lý: tr.93-104

Bộ sưu tập: Báo, Tạp chí

ID: 253103

Thêm vào giỏ

Bản đồ hiện trạng rừng là cơ sở dữ liệu quan trọng trong công tác theo dõi diễn biến rừng nói riêng và quản lý rừng nói chung. Khu vực rừng phòng hộ Núi Cậu - Dầu Tiếng có địa hình phức tạp với hệ sinh thái rừng đặc trưng trên núi đá, có giá trị phòng hộ đặc biệt quan trọng đối với lưu vực hồ Dầu Tiếng. Nghiên cứu sử dụng ảnh Sentinel 2A kết hợp với 110 mẫu khóa ảnh nhằm xây dựng bản đồ hiện trạng rừng và đất lâm nghiệp tại khu vực nghiên cứu. Phương pháp phân loại định hướng đối tượng và chỉ số khác biệt thực vật (NDVI) được áp dụng để phân loại bản đồ hiện trạng rừng, độ chính xác của bản đồ sau phân loại được xác định bằng hệ số Kappa và độ chính xác tổng thể. Kết quả chỉ ra 10 trạng thái rừng và đất lâm nghiệp trong đó diện tích có rừng với 1.475,1 ha (98,52%)
diện tích chưa có rừng là 22,2 ha (1,48%). Trạng thái rừng gỗ tự nhiên núi đá nghèo kiệt có diện tích lớn nhất chiếm 38,41% tổng diện tích đất lâm nghiệp. 100% diện tích rừng và đất lâm nghiệp thuộc rừng phòng hộ đầu nguồn. Rừng tự nhiên phân bố trên điều kiện lập địa núi đá khá khắc nghiệt, ảnh hưởng đến sinh trưởng và phát triển của cây rừng, do đó diện tích rừng có trữ lượng nghèo và nghèo kiệt chiếm 97,5%. Kết quả nghiên cứu này cung cấp cơ sở khoa học về công nghệ GIS và viễn thám và có ý nghĩa quan trọng trong công tác điều tra, quy hoạch và quản lý rừng bền vững.The current forest map serves as an important database for monitoring forest dynamics in particular and forest management in general. The Nui Cau-Dau Tieng protected forest area has a complex terrain with distinctive forest ecosystems on rocky mountains, which are of significant importance for the protection of the Dau Tieng reservoir basin. In this study, Sentinel 2A imagery combined with 110 sample images was utilized to develop a current forest and land-use map in the research area. The object-based classification method and the Normalized Difference Vegetation Index (NDVI) were applied to classify the forest map
the accuracy of the post-classification map was determined by the Kappa coefficient and overall accuracy. The results revealed 10 forest statuses and forest land, with a forest area of 1,475.1 hectares (98.52%) and a non-forest area of 22,2 hectares (1.48%). The state of natural forests on rocky mountain accounted for the largest area, representing 38.41% of the total area. 100% of the forest land area belonged to the protected forest at the headwaters. Natural forests were distributed under harsh rocky mountain conditions, which affected the growth and development of trees. Therefore, the forest area with poor and very poor timber reserves accounted for 97.5%. This research provides a scientific basis for GIS and remote sensing technologies play an intergrated role in forest investigation, planning, and sustainable management.

1. Đọc trực tuyến

1. Đọc trực tuyến

Tạo bộ sưu tập với mã QR