Nghiên cứu một số đặc điểm sinh học của loài Re hương (Cinnamomum parthenoxylon (Jack) Meisn.) ở Khu Bảo tồn Thiên nhiên Hòn Bà, tỉnh Khánh Hòa phục vụ bảo tồn và phát triển nguồn gen=Study on biological traits of cinnamomum parthenoxylon (jack) meisn. at hon ba nature reserve, khanh hoa province for conservation and development genetic resources

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Tác giả: Việt Hùng Đặng, Quốc Cường Nguyễn, Cao Hoàng Lộc Võ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Nông nghiệp và Phát triển nông thôn, 2024

Mô tả vật lý: tr.68-77

Bộ sưu tập: Metadata

ID: 475997

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Nghiên cứu được thực hiện tại Khu Bảo tồn Thiên nhiên (BTTN) Hòn Bà, tỉnh Khánh Hòa. Đây là Khu BTTN rất quan trọng và là một trong 5 trung tâm đa dạng sinh học chính của Việt Nam. Nghiên cứu nhằm mục đích cung cấp thêm các đặc điểm sinh học của loài cây Re hương có phân bố tự nhiên tại Khu BTTN Hòn Bà. Các phương pháp điều tra truyền thống đã được sử dụng và phân tích số liệu thu thập. Re hương thường phân bố trong kiểu rừng kín lá rộng thường xanh mưa mùa nhiệt đới núi thấp. Re hương chỉ phân bố ở sườn đồi các dông núi có độ cao 296 - 610 m, ở trạng thái rừng phục hồi thân cây thường có đường kính nhỏ từ 8 - 31 cm, chiều cao từ 6 - 21 m. Tại khu vực điều tra nghiên cứu thì tiểu khu 234 ở độ cao 534 m có Re hương phân bố nhiều nhất với mật độ 40 cây/ha. Đường kính bình quân của Re hương trong khu vực dao động 14,5 - 26 cm, chiều cao dao động 11 - 18 m. Tỷ lệ cây Re hương tái sinh trong các trạng thái rừng điều tra có chất lượng tốt và trung bình đạt trên 96%. Đối với loài Re hương tại khu vực xuất hiện cả 2 hình thức tái sinh hạt và tái sinh chồi. Kết quả của nghiên cứu này góp phần cung cấp cơ sở khoa học và thực tiễn để bảo tồn và phát triển bền vững loài Re hương trong tương lai, hướng tới việc bảo tồn và gây trồng phát triển quần thể loài Re hương.The research was conducted at Hon Ba Nature Reserve, Khanh Hoa province, which is a very important nature reserve and one of the five main biodiversity centers of Vietnam. The study aims to provide additional biological characteristics of Cinnamomum parthenoxylon tree species naturally distributed in Hon Ba Nature Reserve. Traditional survey methods were used and the collected data analyzed. Cinnamomum parthenoxylon is often distributed in closed, broad - leaved evergreen tropical rainy season lowland forests. Cinnamomum parthenoxylon is only distributed on the hillsides of mountains with altitudes of 296 - 610 m. In forest status, the tree trunk usually has a small diameter of 8 - 31 cm, height of 6 - 21 m. In the research area, sub - area 234 at an altitude of 534 m has the most distributed Cinnamomum parthenoxylon with a density of 40 trees/ha. The average diameter of Cinnamomum parthenoxylon in the area ranges from 14.5 - 26 cm, height ranges from 11 - 18 m. The good quality regeneration rate of Cinnamomum parthenoxylon trees in the evaluated forest status is extremely high (over 96%). Cinnamomum parthenoxylon species in the area exhibited both seed regeneration and shoot regeneration. The findings of this study offered a scientific and practical foundation for the future conservation and sustainable development of Cinnamomum parthenoxylon species, as well as ensuring the preservation and cultivation of Cinnamomum parthenoxylon population.

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