STUDI KEBERADAAN LICHENES SEBAGAI BIOINDIKATOR PENCEMARAN UDARA DI KOTA MEDAN

Sitorus, Jendro Mangiring (2014) STUDI KEBERADAAN LICHENES SEBAGAI BIOINDIKATOR PENCEMARAN UDARA DI KOTA MEDAN. Undergraduate thesis, UNIMED.

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Abstract

Penelitian ini bertujuan untuk mengetahui keberadaan lichenes sebagai bioindikator pencemaran udara berdasarkan tingkat kepadatan lalu lintas di Kota Medan. Penelitian dilaksanakan di tiga lokasi pengamatan, yaitu Jl. T. Cik Ditiro, Jl. Sudirman dan Jl. Yos Sudarso selama satu tahun (Juli 2013-Juli 2014). Penelitian ini bersifat deskriptif dengan metode survei eksploratif dan inventarisasi. Tegakan pohon yang diamati yaitu Swetenia mahagoni, ditentukan secara Purpossive sampling. Hasil penelitian menunjukkan keberadaan lichenes sebagai bioindikator pencemaran udara, dilihat dari jumlah dan jenis lichenes, morfologi (bentuk, warna, luas, dan tipe talus) lichenes. Jenis lichenes yang ditemukan pada ketiga lokasi penelitian sebanyak 8 jenis dari 5 genus. Pada Jl. T. Cik Ditiro (kepadatan lalu lintas rendah) ditemukan 6 jenis, pada Jl. Yos Sudarso (kepadatan lalu lintas sedang) ditemukan 3 jenis, dan pada Jl. Yos Sudarso (kepadatan lalu lintas tinggi) ditemukan 8 jenis. Tipe talus dari delapan jenis lichenes yang ditemukan yaitu crustose dan foliose. Tipe talus crustose lebih banyak daripada foliose. Luas keseluruhan talus lichenes paling kecil terdapat di Jl. Sudirman, yaitu 234,09 cm2. Kandungan CO dan CO2 tertinggi ditemukan di Jl. Yos Sudarso berturut-turut 14 ppm dan 3.300 ppm, kandungan NO2 dan SO2 tertinggi ditemukan di Jl. Sudirman berturut-turut 32,17 µg/m3 dan 32,38 µg/m3. Keanekaragaman lichenes di Jl. T. Cik Ditiro dan Jl. Sudirman tergolong sedang, di Jl. Yos Sudarso tergolong rendah. Seluruh jenis lichenes memiliki pola distribusi berkelompok. Jenis Lepraria incana di Jl. T. Cik Ditiro ditemukan paling berkelompok (32,76). Analisis Korelasi Pearson antara volume kendaraan (kepadatan lalu lintas) dengan luas lichenes menunjukkan korelasi negatif dan tidak signifikan, artinya jika volume

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorHasairin, Ashar19630614 199003 1 0010
Call Number: 581.1 Sit s
Keywords: Lichenes; Talus Lichenis; Reproduksi; Habitat; Kualitas Udara
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QH Natural history > QH301 Biology
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Biologi
Depositing User: Mr Muhammad Iqbal
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/11893

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