TƯƠNG QUAN GIỮA SINH TRƯỞNG VÀ MỘT SỐ TÍNH CHẤT GỖ KEO TAI TƯỢNG (Acacia mangium) TRỒNG TẠI TỈNH QUẢNG TRỊ, VIỆT NAM

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Tác giả: Văn Đoàn Dương, Ngọc Sơn Hồ, Thu Phương La, Công Hoan Nguyễn, Thị Thu Hoàn Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2022

Mô tả vật lý: tr.208-214

Bộ sưu tập: Metadata

ID: 332171

Thêm vào giỏ Liên kết toàn văn

Mối liên quan giữa sinh trưởng và chất lượng gỗ luôn được người trồng rừng cũng như các nhà chế biến gỗ quan tâm, đặc biệt ở các loài sinh trưởng nhanh. Nghiên cứu này được thực hiện nhằm mục tiêu kiểm tra tương quan giữa các chỉ số sinh trưởng và một số tính chất gỗ chủ yếu ở Keo tai tượng, bao gồm: khối lượng thể tích (AD), độ bền uốn tĩnh (MOR), mô đun đàn hồi uốn tĩnh (MOE), và độ bền nén dọc thớ (CS). Kết quả nghiên cứu đã chỉ ra rằng, đường kính ngang ngực có tương quan thuận rất cao với thể tích gỗ (r = 0,99
P <
0,001), trong khi đó chiều cao cây không có tương quan rõ ràng với thể tích thân cây. Hệ số tương quan rất thấp và không có ý nghĩa thống kê (P >
0,05) được tìm thấy giữa các chỉ số sinh trưởng với AD, MOR, MOE và CS. Kết quả nghiên cứu này gợi ý rằng việc cải thiện sinh trưởng có thể không làm giảm chất lượng gỗ ở Keo tai tượng.The relationships between growth characteristics and wood quality has always been of interest to forest growers as well as wood processors, especially in fast-growing species. This study was conducted to examine the correlation between growth indexes and some wood properties in Acacia mangium including air-dry density (AD), modulus of rupture (MOR), modulus of elasticity (MOE), and compressive strength (CS). The results of the present study showed that diameter at breast height had a high positive significant correlation (r = 0.99
P <
0.001) with stem volume. In contrast, no significant relationship was found between tree height and stem volume. Weak cofficients of corrleration and no statistic significance (P >
0.05) were found between growth indexes with AD, MOR, MOE, and CS. The results suggests that Acacia mangium trees with faster gowth characteristics do not always produce wood of lower quality.

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