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All Journal Agrienvi : Jurnal Ilmu Pertanian Jurnal Hutan Tropika JURNAL HUTAN TROPIS
Ajun Junaedi
Jurusan Kehutanan Fakultas Pertanian Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

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Keanekaragaman Jenis Mamalia Besar di Kawasan UPT. Laboratorium Alam Hutan Gambut (LAHG) Sebangau Kalimantan Tengah: Diversity of Large Mammal Species in the UPT Peat Swamp Forest Nature Laboratory (LAHG) Sebangau, Central Kalimantan Milad Madiyawati; Moh. Rizal; Gabriella SN Nababan; Ajun Junaedi; Ahmad Mujaffar; Hendra Toni
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.11970

Abstract

Kalimantan has 222 species of mammals and 44 of them are endemic. This study aims to calculate the diversity and determine the number of large mammal species that exist in the UPT area. Natural Laboratory of Peat Forest (LAHG) Sebangau University of Palangka Raya, Central Kalimantan. The results of the research are There are 5 types of large mammals found through observation and interviews, namely Gibbon (Hylobates albibarbis), Classi (Presbytis baricunda), Orangutan (Pongo pygmaeus), Wild boar (Sus barbatus) and Sun Bear (Helarctos malayanus). Diversity Index of large mammal species in the UPT Area. Large mammal species diversity index in the UPT area. The Sebangau Peat Forest Nature Laboratory (LAHG) showed that it was classified as low, namely 0.97, the species richness index of large mammals in the UPT area. The Sebangau Peat Forest Nature Laboratory (LAHG) is classified as low, namely 0.96. The low number of individuals found in swamp and lowland habitats is related to the insufficient availability of feed in these habitats. This is caused by environmental conditions, namely peat swamps which are always wet and stagnant. And the index of evenness of large mammal species in the UPT area. The Sebangau Peat Forest Nature Laboratory (LAHG) is classified as high, namely 0.88. This has caused the discovery of mammals in the LAHG area to appear evenly distributed because there is no dominance between each species in the community.
Keanekaragaman Jenis Tumbuhan dan Status Konservasi Tumbuhan di Kebun Raya Katingan : Plant Species Diversity and Conservation Status in Katingan Botanical Garden Setiarno Setiarno; Nurmila Sari; Sosilawaty Sosilawaty; Nisfiatul Hidayat; Ajun Junaedi
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.12013

Abstract

The existence of the Katingan Botanical Garden which will collect various plants (fruits, orchids, and various types of forest vegetation typical of Kalimantan) will be utilized and developed for research, education, cultivation, conservation, tourism, and environmental services. This study aims to analyze the diversity and reveal the rarity status of plant species in the Katingan Botanical Garden area, Katingan Regency, Central Kalimantan Province. The method used to collect vegetation data is the plot method in the form of quadratic transects. The size of the observation plot transect is 20 m x 500 m with 2 (two) transects. The research object is seedling, sapling, pole, and tree-stage vegetation. The composition of vegetation species found in the community unit (2,0 ha) is 28 species belonging to 17 tribes, in this, there are 2 individuals that have not been identified. Akasia (Acacia mangium), Tumih (Cambretocarpus rotundatus), and Gerunggang (Cratoxylum arborescent BI.) dominated at all growth stages. The biodiversity indices (diversity, richness, and evenness indices) are classified as medium, low, and high, respectively. There are 3 (three) plant species classified as IUCN status, namely Pulai (Alstonia scholaris) with Least Concern (LC) or low-risk criteria, Jelutung (Dyera lowii) with Vulnerable (VU) or vulnerable criteria, Kempas (Koompassia malaccensis) with Vulnerable (VU) or vulnerable criteria, and 1 (one) plant species including protected, namely Kempas (Koompassia malaccensis).
Komposisi Jenis, Serapan Karbon Dioksida dan Produksi Oksigen Vegetasi Berkayu di Hutan Kemasyarakatan Batu Bulan Kabupaten Gunung Mas Kalimantan Tengah: Species Composition, Carbon Dioxide Uptake and Oxygen Production of Woody Vegetation in The Batu Bulan Community Forest Gunung Mas District, Central Kalimantan Ajun Junaedi; Jenifer Aruan; Yosep Yosep; Penyang Penyang; I Nyoman Surasana; Moh Rizal
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.v19i1.13188

Abstract

Community Forestry is one of the schemes in provides access to forest management legally to the community, so community forestry has a role in supporting the sustainability of forest functions. In line with the principles of sustainable forest management, community forestry management is required to maintain a balance of ecological, economic, and social aspects. The purpose of the study was to identify the species composition and estimate the potential biomass reserves, carbon, carbon dioxide (CO2) absorption, and oxygen (O2) production of woody vegetation in the Batu Bulan Community Forest, Tusang Raya Village, West Rungan District, Gunung Mas Regency, Central Kalimantan Province. Vegetation data collection with vegetation analysis techniques using the plot line method. Data from the analysis of woody vegetation was then calculated for the number of species, Shannon Wienner species diversity index (H'), vegetation density, and Important Value Index (IVI). Calculation of vegetation biomass using destructive and non-destructive methods. While the calculation of carbon, CO2 uptake, and O2 production of woody vegetation were each calculated using SNI 7724 (2019), IPCC (2006), and Nowak et. al (2007). The results showed that the number of woody vegetation species found was 31 species included in 19 families with a Shannon Wienner species diversity index value of 2.81 ("medium" category). Tree and pole-level woody vegetation was dominated by Laban (Vitex pubescens Vahl.), while sapling and seedling levels were dominated by Rubber (Hevea brasiliensis) and Palasit (Canarium sp), respectively. The potential reserves of biomass, carbon, CO2 uptake, and O2 production of woody vegetation were 70.12 tons/ha, 32.81 tonsC/ha, 120.96 tonsCO2/ha, and 88.01 tonsO2/ha, respectively.  
Struktur Komunitas Vegetasi Pada Blok Perlindungan di Kawasan Taman Hutan Raya Lapak Jaru Kabupaten Gunung Mas: Vegetation Community Structure in Protection Block in The Lapak Jaru Highway Forest Park Area Gunung Mas District Setiarno Setiarno; Sopya Sopya; Yusinta Tanduh; Ajun Junaedi; Reri Yulianti
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.v19i1.14243

Abstract

Botanical Forest Park (Tahura) is very important to support human life and the environment. The purpose of the study was to analyze the structure of the vegetation community, including the level of diversity, and the similarity of the vegetation community. The research method follows the sampling technique procedure with the plot method. Data were analyzed using the Index of Important Value to test the mastery of the species, the Shannon-Wiener Index to test the level of diversity of vegetation species, and community stability, community similarity index to test the similarity between flora communities. The results obtained are the value of the species diversity index, in general, is included in the medium category, which means that productivity is sufficient, ecosystem conditions are quite balanced, and ecological pressure is moderate. The species evenness index is high, the species richness index is in the medium category, and the similarity index between plant communities is very high.
Co-Authors Ahmad Mujaffar Amelia Noviyanti Christopheros Esti Munthe Fani Delima Sari Sinaga Gabriella SN Nababan Gery Lineker Barus Gimson Luhan Hendra Toni I Nyoman Surasana I Nyoman Surasana Jenifer Aruan Johanna Maria Rotinsulu Milad Madiyawati Moh Rizal Moh Rizal Moh. Rizal Mukhamad Najib Nisfiatul Hidayat Nisfiatul Hidayat Nisfiatul Hidayat Nurmila Sari Nuwa Penyang, Penyang Reri Yulianti Robby Octavianus Rosdiana Rosdiana Santa Tri Dwi Sartika Waruwu Setiarno Setiarno Setiarno Setiarno Sopya Sopya Sosilawaty Sosilawaty Tioliliani Lubis Wahyu Supriyati Yanarita Yosep Yosep Yusinta Tanduh