Keanekaragaman Nepenthes di Hutan Wisata Alam Taman Eden Seratus Desa Lumbun Rang Kecamatan Lumban Julu Kabupaten Toba Samosir

Abstract

This research aims to know types of Nepenthes the in area of Gardens forests Eden Kabupaten Toba Samosir. This research has been executed in December 2008 until Februari 2009. Research location determined by using Method Purposive, Sampling, in intake of data applied by Quadrat Method at three locations with different height (1.100-1.300 m, 1.300-1.500 m, and 1.500-1.750 m) of the size check of 5 m x 5 m and total number of sample plot 60. From this research obtained nine type Nepenthes spp three type between his (its of natural hybrids), nine type Nepenthes spp is Nepenthes reinwardtiana Miq., Nepenthes tobaica Danser., Nepenthes spectabilis Danser., Nepenthes rhombicaulis Sk I flattened, Nepenthes ovata Nerz & Wistuba., Nepenthes reinwardtiana x Nepenthes spectabilis and Nepenthes tobaica x Nepenthes reinwardtiana., Nepenthes rhombicaulis x Nepenthes ovata. Plant predominating at all of height in research location is Nepenthes tobaica with Important Value Index at height of 1.100-1.300 m to sea level equal to 127, 78'1/4, at height of 1.300-1.500 m to sea level equal to 161,36%, and at height of 1.500-1.750 m to sea level equal to 83,95%. Highest diversity index there are at height of 1.500-1. 750 m to sea level equal to 1.33 and lndeks Keseragaman is highest there are at height of 1.300-1.500 m to sea level equal to 0, 68.