Struktur dan Komposisi Vegetasi Pohon dan Potensi Karbon Tersimpan di Kawasan Hutan Gunung Sibuatan Kecamatan Merek Kabupaten Karo

Abstract

Research on the structure and composition of vegetation Trees and Potential Carbon Stored in Forest Areas Mount Sibuatan Sub Brand Karo district of North Sumatra Province was held in December 2014 to May 2015. This research aims to determine the structure and composition as well as the potential of carbon stored in the forests of Mount Sibuatan. The research location is identified by purposive sampling method based on 4 height which starts from an altitude of 1500 masl to 1900 m asl. Observations were made using squares method. From the results found the tree composition consists of 69 species from 26 families. The highest value on the horizontal structure of Fagaceae family with a value of 29,85 m2 , while the highest vertical structure in stratum A with the average of high value is 32.15 m from 25 individuals. The highest IVI value on the type of Syzygium sp1 around 27.5% and the lowest on the type of Diospyros sp. around 0.41%. Location I have the highest diversity index as well as uniformity index around 3.35 and 0.91, respectively. The highest potential of carbon stored in the second location is 516.1 tons/ha while the smallest obtained at location 1 is 193.6 tons/ha.