Indonesian

Abstract

Frianto D, Novriyanti E. 2016. The distribution pattern and the density potential of Taxus sumatrana in Mount Tujuh, Kerinci District, Jambi. Pros Sem Nas Masy Biodiv Indon 2: 12-15. Taxus sumatrana is included in genus Taxus, family Taxaceae and subdivision Gymnospermae. Taxus is a source of paclitaxel (taxol), an anticancer substance. This study aimed to examine the distribution pattern and the density potential of T. sumatrana at Mount Tujuh, Kerinci District, Jambi Province. The research was conducted with a combination of transect and line compartment method. The observation was conducted at an elevation of 1.690-2.120 m asl. The collected data of distribution pattern were analyzed with Morisita Index. Further, the data was analyzed with Chi-square distribution to define grouped or ungrouped distribution pattern. Abiotic factors observed included soil temperature, soil pH, and light intensity. The results showed that the distribution pattern of T. sumatrana in Mount Tujuh based on Morisita Index was classified as grouped (1.21). Meanwhile, the results of further analysis of Chi-square distribution (155.49) showed the result that there was no significant difference with a grouped distribution pattern. In this study, Taxus was mostly found at ravine or cliff of river banks. Potential of the density of T. sumatrana was 10.19 trees/ha. The abiotic factors observed included soil temperature ranged between 20.9- 23.5oC, soil pH was about 6.8 and light intensity ranged between 257-639 Lux.