Identifikasi jenis tumbuhan sebagai pakan lebah kelulut (Trigona spp.) di KPHP Katingan Hulu Unit XVII. Tujuan penelitian adalah untuk mengidentifikasi jenis pakan Lebah Madu Kelulut (Trigona spp.) di KPHP Katingan Hulu Unit XVII dengan metode jalur/metode river survey. Jalur pengamatan ditentukan secara Purposive sampling sebanyak 4 jalur dengan panjang per jalur = 500 m dan jumlah luas jalur secara keseluruhan yaitu 2 Ha. Adapun jumlah seluruh plot pengamatan adalah 21 plot dengan perhitungan luas 21 plot x 400 m2 = 8.400 m2/10.000 m2 = 0,84 Ha dan ukuran plot yaitu 20 m x 20 m dengan jarak antar plot yaitu 100 m. Berdasarkan hasil pengamatan di lapangan didapatkan 25 jenis tanaman yang menjadi pakan lebah kelulut (Trigona spp.). Terdapat 14 jenis vegetasi tingkat semai dengan Indeks Nilai Penting (INP) tertinggi ada pada jenis karamunting (Rhodomyrtus tomentosa) dengan nilai 71,94% dan yang terendah ada pada jenis belimbing waluh (Averrhoa carambola) dengan nilai 4,81%, putri malu (Mimosa pudica) dengan nilai 4,81%, aster putih (Symphyotrichum ericoides) dengan nilai 4,81% dan bayam duri (Amaranthus spinosus) dengan nilai 4,81%. Pada vegetasi tingkat pancang terdapat 4 jenis tanaman dengan Indeks Nilai Penting (INP) tertinggi ada pada jenis mangga (Mangifera indica) dengan nilai 97,21% dan yang terendah ada pada jenis gaharu (Aquilaria malaccensis) dengan nilai 19,44%. Pada vegetasi tingkat tiang terdapat 6 jenis tanaman dengan Indeks Nilai Penting (INP) tertinggi ada pada jenis akasia (Acacia mangium) dengan nilai 95,81% dan yang terendah ada pada jenis mangga (Mangifera indica) dengan nilai 20,08%. Serta terdapat 10 jenis vegetasi tingkat pohon dengan Indeks Nilai Penting (INP) tertinggi ada pada jenis akasia (Acacia mangium) dengan nilai 110,91% dan yang terendah ada pada jenis johar (Senna siamea) dengan nilai 10,18%.
This study aims to determine the total income, production costs, absolute profit, andbreak-even point from the business of utilizing wood waste, through analysis of RevenueCost Ratio (RCR) analysis at Tio Art Collection, Palangka Raya City in 2019. Theanalysis uses a quantitative descriptive method. The results of this study indicate that thewood waste used in Tio Art Collection is ironwood waste (Eusideroxylon zwageri T et B)and balangeran wood waste (Shorea laevis Ridl.). Tio Art Collection's wood craft businessis economically viable because it has an R/C ratio of 1.73.Keywords: Wood waste, R/C ratio, cost and income.
The waste of wood processing industry such as the plywood, sawmill and woodworkingindustries give waste as form of end pieces, slash, peeling residue, scrap and sawdust.The wood waste is not utilized by the furniture industry. The solution of this problem isto process these wood waste into activated charcoal. Activated charcoal can be madefrom any material containing carbon, both organic and inorganic, provided that thematerial is porous.The first,the waste wood of Ulin, Benuas, and Agathis used asmaterials in this study were carbonized and then made into activated charcoal. Thequality test of activated charcoal were yield, moisture content, ash, volatile matter, fixedcarbon, absorption of benzene, absorption of iodine and absorption of methylene blue.Overall, not all research treatments on the quality of activated charcoal fulfill to SNI 06-3730-1995. The quality of Agathis wood activated charcoal has the best quality (520,83mg/g) from all treatments by the highest score of iodine absorption (Kimia Farma (KF)standard requires >426.5 mg/g). Based on the standar of drinking water quality No.416/Menkes/Per/IX/1990, activated charcoal of agathis wood can improve the quality ofbore well water except for turbidity.Keywords: Activated charcoal, ulin, benuas, agathis, bore well water
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