Indeks Nilai Penting Jenis Tingkat Tiang Area X 100

9 1

j. Indeks Nilai Penting Jenis Tingkat Tiang Area X

No Famili Spesies Jumlah K KR F FR LBD D DR INP 1 Bombacaceae Neseria sp. 2 66.67 15.38 0.33 8.33 0.029 0.958 11.93 35.65 2 Fagaceae Lithocarpus elegans 1 33.33 7.69 0.33 8.33 0.027 0.893 11.12 27.14 3 Hypericaceae Cratoxylum sumatranum 1 33.33 7.69 0.33 8.33 0.026 0.862 10.74 26.76 4 Fagaceae Castanopsis sp. 1 33.33 7.69 0.33 8.33 0.025 0.823 10.25 26.28 5 Guttiferae Calophyllum floribundum 1 33.33 7.69 0.33 8.33 0.024 0.812 10.11 26.13 6 Sapindaceae Guioa sp. 1 33.33 7.69 0.33 8.33 0.019 0.642 8.00 24.03 7 Myrtaceae Syzygium sp. 1 33.33 7.69 0.33 8.33 0.017 0.580 7.22 23.24 8 Lauraceae Eucalyptus sp. 1 33.33 7.69 0.33 8.33 0.016 0.549 6.84 22.87 9 Anacardiaceae Gluta renghas 1 33.33 7.69 0.33 8.33 0.016 0.537 6.69 22.72 10 Crypteroniaceae Dactyloclaudus stenostachys 1 33.33 7.69 0.33 8.33 0.014 0.468 5.83 21.86 11 Olacaceae Scorodocarpus sp. 1 33.33 7.69 0.33 8.33 0.014 0.468 5.83 21.85 12 Lauraceae Cryptocarya temenesia 1 33.33 7.69 0.33 8.33 0.013 0.437 5.45 21.47 Total 13 433.33 100

3.5 100

0.025 0.833 100 300 Universitas Sumatera Utara 9 2 Lampiran 8. Analisis Vegetasi Tingkat Pohon di Kawasan Hutan Gunung Sibuatan Kabupaten Karo Sumatera Utara a. Indeks Nilai Penting Jenis Tingkat Pohon Area I No Famili Spesies Jumlah K KR F FR LBD D DR INP 1 Fagaceae Quercus sp. 3 25.00 14.29 0.67 12.50 2.692 22.433 55.02 81.80 2 Fagaceae Castanopsis tunggurut 3 25.00 14.29 0.67 12.50 0.284 2.371 5.81 32.60 3 Euphorbiaceae Blumeodendron tokbrai 3 25.00 14.29 0.33 6.25 0.539 4.490 11.01 31.55 4 Guttiferae Mesua lepitoda 2 16.67 9.52 0.67 12.50 0.203 1.694 4.16 26.18 5 Fagaceae Castanopsis sp. 2 16.67 9.52 0.67 12.50 0.159 1.328 3.26 25.28 6 Moraceae Arthocarpus hispidus 2 16.67 9.52 0.33 6.25 0.183 1.522 3.73 19.51 7 Myrtaceae Eugenia ridleyi 1 8.33 4.76 0.33 6.25 0.287 2.392 5.87 16.88 8 Tiliaceae Pentace floribunda 1 8.33 4.76 0.33 6.25 0.281 2.342 5.74 16.75 9 Moraceae Ficus sp. 1 8.33 4.76 0.33 6.25 0.102 0.850 2.08 13.10 10 Ebenaceae Diospyros areolata 1 8.33 4.76 0.33 6.25 0.066 0.550 1.35 12.36 11 Euphorbiaceae Macaranga constricta 1 8.33 4.76 0.33 6.25 0.054 0.452 1.11 12.12 12 Annonaceae Xylopia fusca 1 8.33 4.76 0.33 6.25 0.042 0.350 0.86 11.87 Total 21 175 100