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Nuwa
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Agriculture, Biological Sciences & Forestry

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 1 
EVALUASI KESEHATAN POHON MENGGUNAKAN INDIKATOR FOREST HEALTH MONITORING PADA RUANG TERBUKA HIJAU UNIVERSITAS PALANGKA RAYA: Evaluation of Tree Health Using Forest Health Monitoring Indicators in Palangka Raya University Green Space Area Emirama Waruwu; Eritha Kristiana Firdara; Robby Octavianus; Nuwa; A. Triyadi
HUTAN TROPIKA Vol 16 No 1 (2021): Volume 16 Nomor 1 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i1.2964

Abstract

Palangka Raya University Campus is a form of urban Green Open Space (GOS) that hasecological, social, cultural and aesthetic benefits. It is assumed that many trees which arepart of the green open space on the Palangka Raya University campus are experiencingunfavorable conditions. To obtain this information, a study was conducted using the foresthealth monitoring (FHM) method. The purpose of this study was to obtain data on thelevel of tree damage and the form of pests and diseases as well as human disturbance inthe green open space area of Palangka Raya University
UJI AKTIVITAS ANTI BAKTERI MINYAK ATSIRI DAN AMPAS DARI KULIT KAYU Cinnamomum sintoc Blume TERHADAP BAKTERI Staphylococcus aureus: Anti-Bacterial Activity Testing of Essential Oil and Drugs of Wood Skin From Cinnamomum sintoc Blume Against Bacteria of Staphylococcus aureus Nasyiya; Renhart Jemi; Ahmad Mujaffar; Nuwa; Herianto
HUTAN TROPIKA Vol 16 No 1 (2021): Volume 16 Nomor 1 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i1.2965

Abstract

This study aims to determine the antibacterial activity of essential oils and residue fromthe distillation of Sintok bark (C. sintoc Blume) against S. aureus bacteria. The researchwas carried out by distillation of sintok bark and macerating the dregs. Furthermore, theessential oil and extract the dregs were tested for antibacterial activity against S. aureus.Inhibition zone data were tabulated and analyzed by simple linear regression. The resultsshowed that the essential oil with the highest inhibition zone at a concentration of 20,000mg / L was 11.10 mm, As well as the inhibition zone dregs extract of 6.57 mm. Inconclusion, sintok wood essential oil is more active than its pulp against S. aureus. Inconclusion, sintuk wood essential oil is more active than the dregs extract against S.aureusKeywords : Antibacterial, essential oil, Cinnamomum sintoc, Staphyloccocus aureus
ANALISIS BIAYA PEMANFAATAN LIMBAH INDUSTRI MEBEL DI TIO ART COLLECTION KOTA PALANGKA RAYA : Cost Analysis of Utilization of Furniture Industry Waste at Tio Art Collection, Palangka Raya City Pebri Leonardo Tampubolon; Nuwa; Desy Natalia Koroh; Herwin Joni; Yosep
HUTAN TROPIKA Vol 16 No 1 (2021): Volume 16 Nomor 1 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i1.2973

Abstract

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.
Aktivitas Toksisitas Minyak Atsiri Kulit Cinnamomum sintoc Blume Terhadap Larva Artemia salina Leach (Studi Pendahuluan Anti Kanker): Toxicity Activity of Essential Oil from Cinnamomum sintoc Blume bark Against Artemia salina Leach Larvae (Anti-Cancer Preliminary Study) Nuwa; Renhart Jemi; Hendra Toni; Antonius Triyadi
HUTAN TROPIKA Vol 16 No 2 (2021): Volume 16 Nomor 2 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i2.3580

Abstract

Tujuan penelitian untuk mengetahui aktivitas toksisitas minyak atsiri kulit kayu sintok (C. sintoc Blume) kondisi segar dan kering terhadap larva A. salina Leach. Menggunakan metode destilasi kulit kayu untuk mendapatkan minyak atsirinya, kemudian diuji toksisitasnya dengan larva menggunakan metode Brine Shrimp Lethality Test (BSLT), analisis senyawa menggunakan GC-MS. Kematian larva dianalisis dengan Regresi Probit. Hasil penelitian menunjukkan, minyak atsiri kulit kayu segar dan kering bersifat toksik. Minyak atsiri kulit kayu segar mengandung 11 senyawa, dan Minyak atsiri kulit kayu kering mengandung 13 senyawa. Diduga senyawa yang terkandung pada minyak atsiri kulit kayu C. sintoc Blume segar dan kering yang menyebabkan kematian larva A. salina Leach
Potensi Biomassa dan Karbon Vegetasi Hutan Rawa Gambut di Petak Ukur Permanen Hutan Pendidikan Hampangen Universitas Palanka Raya Kalimantan Tengah: Potency of Biomass and Carbon Vegetation of Peat Swamp Forest in The Permanent Sample Plot The Hampangen Educational Forest, Palangka Raya University, Central Kalimantan Johanna Maria Rotinsulu; Ajun Junaedi; Yanarita; Nuwa; Robby Octavianus
HUTAN TROPIKA Vol 16 No 2 (2021): Volume 16 Nomor 2 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i2.3593

Abstract

The purpose of this study (a) determine the composition and structure of vegetation based on the growth rate (tree, pole, sapling, seedling) in each Permanent Sample Plot (PSP); (b) to calculate the potency of biomass and carbon in vegetation trees level, poles and sapling on each PSP. The results showed that the number of vegetation species found in PSP-1 as many as 47 species with 28 family and PSP-2 of 33 species with 24 family. The vegetation of species that dominate based on the level of growth (tree, pole, sapling, seedling) in the PSP-1 consists of : Gerunggang (Cratoxylum arborescens (Vahl) Blume) and Jambu-jambu (Syzigium sp). In PSP-2 of vegetation species that dominance Tumih (Combretocarpus rotundatus (Miq.) Danser) and Jambu-jambu (Syzigium sp). The structure of the vegetation horizontally in the PSP-1 and PSP-2 dominated the vegetation of the small diameter and structure of the vegetation vertical in the dominance of vegetation including the stratum D. The average value the species diversity indexs vegetation tree level, pole, sapling and seedling in PSP-1 at 2.09 included in the category of “medium” and in PSP-2 of 1.83 which is included in the category of “low”. The potency vegetation biomass total in PSP-1 and PSP-2 respectively 152.69 tons/ha and 122.93 tons/ha as well as the potency carbon vegetation total in PSP-1 and PSP-2 respectively 71.76 tons/ha and 57.78 tons/ha.
Co-Authors A. Triyadi Ahmad Mujaffar Ajun Junaedi Antonius Triyadi Desy Natalia Koroh Emirama Waruwu Eritha Kristiana Firdara Hendra Toni Herianto Herwin Joni Johanna Maria Rotinsulu Nasyiya Octavianus, Robby Pebri Leonardo Tampubolon Renhart Jemi Yanarita Yosep