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All Journal Daun: Jurnal Ilmiah Pertanian dan Kehutanan Jurnal Jejaring Matematika dan Sains Jurnal Hutan Tropika JURNAL HUTAN TROPIS
Robby Octavianus
Jurusan Kehutanan Fakultas Pertanian Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Mathematics Physics

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Inventarisasi Jenis Dan Indeks Ekologi Amfibi (Ordo Anura) Di Kawasan Konservasi Bukit Tangkiling Palangka Raya: Inventory and Ecological Index of Amphibian (Ordo Anura) in the Tangkiling Hill Conservation Area, Palangka Raya Octavianus, Robby; Hastari, Belinda; Saputra, Aji Eka
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14087

Abstract

The purpose of this study (a) inventory and identify the composition of amphibians of the Anura order in the Tangkiling Hill Conservation Area, Palangka Raya City; and (b) calculate the ecological index of the Anura order amphibians in the Tangkiling Hill Conservation Area, Palangka Raya City. The results showed that the number of individuals of the amphibians of Anura order found in the research location was 234 individuals consisting of 18 species from 5 families, with the number of amphibian species found in water was 69.23% while in land 30.76%. Based on the calculation of the ecological index, it was found that the value of the species diversity index (H') was around 1.16 – 2.26 which categorized as "low" to "medium". The value of the species evenness index (E') was found to be 0.5 - 0.75, which is included in the "medium" to "high" category. The abundance index value (D) was found to be around 1.41 – 39.66. Meanwhile, the calculation of the important value index obtained an index value around 3.87 – 23.99 with Limnonectes finchi  having the highest value and Bufo juxtasper, Bufo quadriporcatus, Pseudobufo subasper, and Rana chalconota having the lowest value.
Keanekaragaman Jenis dan Kepadatan Burung Di Kawasan Taman Hutan Raya Lapak Jaru Kabupaten Gunung Mas Provinsi Kalimantan Tengah: Species Diversity and Density of Birds in Lapak Jaru Forest Park Area, Gunung Mas Regency, Central Kalimantan Province Wulandary, Pratiwi Putri; Hidayat, Nisfiatul; Octavianus, Robby; Putir, Patricia Erosa; Yulianto, Santosa
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to determine the diversity of species and population density of birds in the Lapak Jaru Forest Park (Tahura) Area. The method used is the Rapid Assessment method and a combination method between the Point Count method and Line Transect. Data analysis uses the Species Richness Index, Species Diversity Index, Evenness Index and Population Density. The research results showed that the number of bird species at the research location is 28 bird species with a total number of 238 individuals. The Species Richness Index obtained is 4,93, the Species Diversity Index is 2,96, and the Evenness Index is 0,89. The bird population density at the research location is 2,701.11 individuals/km2, and the five types of birds with the highest density are Cinenen Belukar (306,68 individuals/km2), Pentis Kalimantan (271,29 individuals/km2), Cucak Kelabu (235,9 individuals/km2), Asi Topi-Sisik (235,9 individuals/km2) and Jingjing Batu (176,93 individuals/km2)
Kualitas Produk Sumpit Dari Limbah Kayu Pada UD. Akselerasi Palangka Raya : Quality of Chopstick Products Made from Wood Waste at UD. Akselerasi Palangka Raya Nuwa, Nuwa; Nursiah, Nursiah; Octavianus, Robby; Augent, Ryandi
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.18596

Abstract

This study aims to determine the quality of chopstick products and to understand the objectives and quantity of products marketed by UD. Akselerasi. The research was conducted in the city of Palangkaraya. Data collection techniques in this study included interviews, observations, and documentation. The data analysis used a qualitative descriptive analysis technique. There are several steps in analyzing the data: data reduction, data presentation, and conclusion drawing. The results of this study show that the production process carried out by UD. Akselerasi maintains the quality of chopsticks through a strict series of processes, starting from the selection of raw materials to the finishing stage. White Meranti wood was chosen as the main material due to its suitability for chopstick production. Defective products are sorted and not shipped, and there is a replacement policy for products found to be defective after shipment. This reflects the company's commitment to quality and customer satisfaction. UD. Akselerasi primarily focuses on chopstick production, with 99% of the total production being exported to Japan. This demonstrates the company's specialization in meeting international market demand, particularly Japan, which is known for its high-quality standards. An effective marketing strategy through social media, exhibitions, and direct visits from buyers also supports strong international market penetration.
Co-Authors A. Triyadi Adya Putri Ajun Junaedi Augent, Ryandi Belinda Hastari Chartina Pidjath Edy Subahani Emirama Waruwu F Fauzi Fauzi, Fouad Gimson Luhan Herianto Herianto Hidayat, Nisfiatul Johanna Maria Rotinsulu Junaedi, Ajun K. Firdara, Eritha Madiyawati, Milad Manurung, Polman Moh. Rizal, Moh. N Hidayat N. Hidayat, N. Nursiah Nursiah, Nursiah Nuwa Nuwa, Nuwa Patricia Erosa Putir, Patricia Erosa Pidjat, Chartina Rizal, Moh Saputra, Aji Eka Simbolon, Lilis S. Sinaga, Fani Delima Sari Siti Aisyah Surasana, I Nyoman Tanduh, Yusintha Wulandary, Pratiwi Putri Yanarita Yanarita, Yanarita Yulianto, Santosa Yusuf Aguswan