ANALISIS VEGETASI TUMBUHAN PAKU BERDASARKAN KETINGGIAN DI BUKIT SIMARSAYANG PADANG SIDIMPUAN

Siregar, Fadlila Yuhana (2014) ANALISIS VEGETASI TUMBUHAN PAKU BERDASARKAN KETINGGIAN DI BUKIT SIMARSAYANG PADANG SIDIMPUAN. Undergraduate thesis, UNIMED.

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Abstract

Penelitian analisis vegetasi ini bertujuan untuk mengetahui keanekaragaman, dominansi, pola distribusi, sifat fisika-kimia media tumbuh tumbuhan paku di Bukit Simarsayang Padangsidimpuan. Penelitian ini dilaksanakan dari bulan Desember 2013 sampai bulan Januari 2014. Penelitian ini menggunakan metode deskriptif dengan tehnik purposive sampling berdasarkan rona lingkungan. Petak contoh yang digunakan berukuran 5 x 5 m, masing-masing terdapat 10 di ketinggian I (385 – 443 m dpl) dan di ketinggian II ( 443 – 500 m dpl). Hasil penelitian menunjukkan bahwa di Bukit Simarsayang ditemukan 42 jenis tumbuhan paku yang tergolong kedalam 13 famili dengan total 2228 individu. Ketinggian I memiliki indeks keanekaragaman 2,706 dan ketinggian II memiliki indeks keanekaragaman 2,470 artinya indeks keanekaragaman masing-masing ketinggian termasuk kategori sedang. Ketinggian I didominasi oleh jenis Christella dentata sebanyak 175 individu dan ketinggian II didominasi oleh jenis Dicranopteris linearis sebanyak 271 individu. Terdapat 40 jenis tumbuhan paku yang memiliki pola distribusi berkelompok dan 2 jenis tumbuhan paku dengan pola distribusi acak ( Lepisorus longifolius dan Vittaria sp). Di ketinggian I frekuensi relatif terbesar terdapat pada jenis Davallia denticulata sebesar 8,1967%, kerapatan relatif terbesar pada jenis Christella dentata sebesar 17,694% dan indeks nilai penting (INP) terbesar pada jenis Christella dentata sebesar 42,0454%. Di ketinggian II frekuensi relatif terbesar terdapat pada tiga jenis yaitu Dicranopteris linearis, Selaginella plana dan Davallia denticulata sebesar 8,4746%, kerapatan relatif terbesar pada jenis Dicranopteris linearis sebesar 21,872% dan indeks nilai penting (INP) terbesar pada jenis Dicranopteris linearis sebesar 52,4446%. Bukit Simarsayang Padangsidimpuan memiliki suhu udara rata-rata 27-29 ºC, kelembaban udara 69-74%, suhu tanah 20,1- 21,7 ºC, pH tanah 6,34- 6,35, kelembaban tanah 20,5 - 23,3, intensitas cahaya matahari sebesar 135,9 - 160,4 lux.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorSuryani, Cicik196606101991032002
Call Number: 587.3 Sir a
Keywords: Habitat; Tumbuhan Paku; Morfologi; Reproduksi
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QK Botany
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Biologi
Depositing User: Mrs Desy Sry Yani
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/11941

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