KOMPOSISI DAN STRUKTUR RERUMPUTAN DI KAWASAN DANAU TOBA DESA TOGU DOMU NAULI KECAMATAN DOLOK PARDAMEAN KABUPATEN SIMALUNGUN SUMATERA UTARA
Abstract: The composition and
structure of grasses in Toba Lake Area
Togu Domu Nauli Village, Dolok Pardamean Subdistrict, Simalungun Regency, North
Sumatra has been studied from March to June 2012. The study site is determined
by purposive sampling method and it is divided three locations based on
altitude with 20 plots of 1 x 1 m size
for each area. There are 21 species of grasses that belong to two families
found at three study sites. The first area was dominated by Imperata
cylindrica, the second was dominated by Leersia hexandra, and the
third was dominated by Imperata cylindrica with importance
values are 58.408 %, 72.202
%, and 81.316 %, respectively. The
diversity index (H’) of grasses are 1.826, 1.432, 1.010 at area I, II, and III,
respectively and equitability index (E) of grasses are 0.658, 0.597, 0.519 at
area I,
II, and III, respectively. The
Similarity index of grasses ranges from 46.91% to 62.56%, with the highest
similarity index is 62.56% that is found
between area II and III.
Keyword: Composition, grasses,
Simalungun, structure
Penulis: Pinta Omas Pasaribu,
M.Zaidun Sofyan, Nursahara Pasaribu
Kode Jurnal: jpbiologidd130034
