Vegetasi Komunitas Nepenthes Spp. di Kawasan Hutan Kampus Institut Agama Islam Negeri Sulthan Thaha Saifuddin Jambi

Nepenthes spp. memiliki nilai ekologi, ekonomi dan ekslusifitas bagi masyarakat pada umumnya, namun eksistensi di habitat alaminya setiap tahunnya semakin terancam. Hal ini disebabkan oleh konversi lahan hutan, semak belukar menjadi kawasan pemukiman, perladangan, perkebunan, pembalakan hutan, degradasi hutan, dan eksploitasi liar, sehingga preservasinya cenderung terabaikan. Penelitian bertujuan mempertelakan secara ilmiah deskripsi dan eksplorasi vegetasi komunitas Nepenthes spp., nilai penting dan indeks keanekaragaman tumbuhan dalam komunitasnya. Metode yang digunakan dalam penelitian adalah metode survei dan teknik pengambilan data mengikuti prosedur kerja ekologi, obervasi, koleksi secara langsung pada sejumlah sampel, serta dokumentasi. Hasil penelitian ditemukan Nepenthes mirabilis dan N. gracilis. Komposisi tumbuhan dalam komunitas Nepenthes spp. tercatat 43 spesies termasuk ke dalam 25 famili. Nilai kepentingan tertinggi adalah Stenoclaena palustris (14,65%), Dicronapteris linearis (17,74%), dan Lygodium microphyllum (12,10%). Indeks keanekaragaman spesies berdasarkan Shannon-Wiener tergolong rendah (1,86). Rendahnya nilai indeks keanekaragaman spesies dalam suatu komunitas dipengaruhi oleh interaksi yang terjadi dalam komunitas tersebut kecil dan gangguan lingkungan alami ataupun kegiatan aktivitas manusia

Simulasi Tingkat Kebisingan Dan Kadar Polutan Sebagai Akibat Aktivitas Transportasi Pada Kawasan Perdagangan Di Kota Kendari (Studi Kasus: Kawasan Perdagangan Jalan Mt. Haryono Kec. Wua-wua Kota Kendari)

The rapid economic activity in Kendari is indicated by development of central business Lippo Plaza in MT.Haryono Roads Kendari. However, the consequences of the development of the central business LippoPlaza have affected on the environment in the form of increased noise and air pollution. The aim of thisstudy was to determine the level of noise and air pollution in the existing conditions, and to determine thelevel of noise simulation. The method used in this study for the noise calculations was based on " The Bookof Calculation of Road Traffic Noise " published by the Department of Transport , Welsh Office , HMSO(1988), and the method of calculation of pollutant concentration used an equation developed by SitiMalkamah. The results of this study showed that the highest noise levels occur on Holidays / Saturday in Segment 2 (front Jl.MT.Haryono Lippo Plaza ) of 70.11 dB ( A ), this value is above the noise quality standardssuggested by No. KepMenLH . 48 in 1996 , which is 70 dB ( A ). In addition, the value also has exceeded ofthe maximum allowed for trade in the region ( Zone C ) Regulation of the Minister of HealthNo.718/Men/Kes/XI/1987. Variables such as traffic volume is high and a large reflection angle, couldincrease noise, while low-speed, high barrier width and spacing can reduce the noise level. For pollutantlevels, the value of 4065.33 μg/nm3 content of CO, NOx at 200-300 μg/nm3 , μg/nm3 PM at 0.0097 , stillbelow the National Ambient Air Quality Standards ( PP RI 41, 1999 ) , namely 30000 μg/nm3 , 400 and 150μg/nm3 μg/nm3. While the HC 400 and 700 μg/nm3 μg/nm3 has exceeded the standard of 160 μg/nm3 .Recommendation suggested to address the noise problem at Jl.MT . Haryono is the adoption of the CoreStrategy, which is the application of one direction on one arm of the intersection at peak hours , thusresulting intersection service level increases from E to C