Eksplorasi Keanekaragaman Nepenthes spp di Cagar Alam Dolok Sibual-buali, Sumatera Utara

Abstract

NOVHA NURUL FADILLAH. Diversity of Nepenthes in Dolok Sibual-buali Nature Reserve, North Sumatra. Guided by PINDI PATANA and YUNASFI. Nepenthes is one of the few carnivorous plants which popular as ornamental plant. Sumatran has the richest Nepenthes flora after Borneo, with 29 species. This research was done in Dolok Sibual-buali Nature Reserve at May until June 2013. The purpose of this research is to identify the types of Nepenthes and to knows the dominance type of Nepenthes in Dolok Sibual-buali Nature Reserve. Research location determined by using cluster method at three diferent location, there are 1200 m a.s.l., 1400 m a.s.l., and 1500 m a.s.l.. Area size of observation was 0,6 Ha with 15 plot. The result of this research showed there are 6 species Nepenthes founded in this area, the species are N. bongso, N. ovata, N. reinwardtiana, N. rhombicaulis, N. sumatrana, dan N. tobaica. The N. reinwardtiana is the species with largest clump, that discover with 152 clumps/0,6 Ha (32,55%) and the lowest species is N. sumatrana with 22 clumps/0,6 Ha (4,71%). The highest index diversity of the Nepenthes spp. was discovered in location III (1500 m a.s.l.) with 1,59.