SILVIC CHARACTERISTICS OF Cinamomum parthenoxylon (Jack) Meisn IN QUANG NINH PROVINCE

Abstract

Cinnamomum parthenoxylon (Jack) Meisn, belonging to the Lauraceae family, has a relatively wide distribution, but the number of individuals remaining in the wild is very few. Investigation results in Quang Ninh province show that Cinnamomum parthenoxylon is distributed across six districts and cities in Quang Ninh province, including: Binh Lieu, Ba Che, Dong Trieu, Hai Ha, Tien Yen, Uong Bi City, and Van Don. Cinnamomum parthenoxylon primarily grows in areas with loamy soil, mainly Feralit soil ranging from light yellow to red-yellow, developed on claystone, limestone, or granite. The elevation of Cinnamomum parthenoxylon 's distribution varies greatly, from 30 m to 900 m above sea level; in various forest conditions, from degraded forests to rich forests. The density of trees ranges from 248 trees/ha to 1020 trees/ha. Volume fluctuates between 16.10 m³/ha to 290.89 m³/ha. The species composition in areas where Cinnamon is found is very diverse, but the number of Cinnamomum parthenoxylon) individuals is unevenly distributed; in some areas, it contributes to the community structure but does not play a key role in shaping the forest environment. Cinnamomum parthenoxylon regenerate naturally very little, with density ranging from 11 to 32 trees/ha, showing that Cinnamomum parthenoxylon is a species facing a high risk of being threatened.