Study on biological traits of Cinnamomum parthenoxylon (Jack) Meisn. at Hon Ba Nature Reserve, Khanh Hoa province for conservation and development genetic resources

Abstract

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.