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All Journal Agrienvi : Jurnal Ilmu Pertanian Journal Hutan Tropika
Ajun Junaedi
Universitas Palangka Raya
Agriculture, Biological Sciences & Forestry

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PERAN TEGAKAN SENGON DI HUTAN TANAMAN INDUSTRI DALAM MITIGASI PERUBAHAN IKLIM GLOBAL (The Role of Sengon’s Stand at Forest Plantation in Global Climate Change Mitigation) Ajun Junaedi; Moh Rizal
HUTAN TROPIKA Vol 14 No 2 (2019): Volume 14 Nomor 2 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (391.495 KB) | DOI: 10.36873/jht.v14i2.1149

Abstract

This research aims to estimate the biomass, carbon storage, carbon dioxide uptake and oxygen produced by sengon (Paraserianthes falcataria (L.) Nielsen) stand aged 9, 11 and 13 years in IUPHHK-HTI PT Parwata Rimba, Central Kalimantan. Estimated of biomass, carbon stock, CO2 uptake and Oxygen produced using allometric equations. The results showed that the storage of sengon standing biomass aged 9,11 and 13 years ranged from 110.71 to 200.94 tons/ha, carbon stock ranged from 52.03 to 94.44 tons C/ha, CO2 uptake ranged from 190.79 to 259.13 tons CO2/ha and Oxygen produced around 138.75 to 251.84 tons O2/ha. The total of biomass, carbon stock, CO2 uptake and Oxygenproduced by sengon stands at forest plantations are large enough to have an important role in global climate change mitigation in the forestry sector.
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.
Karakteristik Jaringan Jalan dan Keterbukaan Tanah Hutan Akibat Kegiatan Pembukaan Wilayah Hutan (Studi Kasus di IUPHHK-HA PT Sindo Lumber Kalimantan Tengah): Characteristics of The Roads Network and Openness Forest Land Due to Activity Forest Opening Area-Case Study at IUPHHK-HA PT Sindo Lumber Central Kalimantan Ajun Junaedi; I Nyoman Surasana; Mohammad Rizal; Santa Tri Dwi Sartika Waruwu
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.v16i2.3594

Abstract

The purpose of this study: a) to determine the characteristic parameters the forest roads network, such as: density forest roads, spacing forest roads, average distance skid trails, correction factor and quality forest opening area; (b) calculate the percent openness forest land due to activities making main roads network, branch roads, skid trail and TPn. The location research in block harvesting RKT 2018 at IUPHHK-HA PT Sindo Lumber Central Kalimantan. The results showed density the forest roads network ranged between 7.96 – 17.66 m/ha, 1256.28 m main road spacing, 1097.69 m branch road spacing, 566.25 m skid trail spacing, 146.5 m average distance skid theoritical (REo), 186.83 m REm and 252.30 m REt. The correction factor value of the roads network (Vcorr), Tcorr and the correction factor forest opening area (KG) respectively by 1.27, 1.35 and 1.71 with the quality forest opening area included in the category of “very good”. While the percent of the openness forest land due to making main roads network, branch roads, skid trail and TPn respectively by 0.87%, 0.73%, 3% and 0.53%.
ANALISIS KETERBUKAAN TANAH HUTAN AKIBAT KEGIATAN PEMBUKAAN WILAYAH HUTAN DI HUTAN ALAM PRODUKSI Ajun Junaedi; I Nyoman Surasana; Moh Rizal; Gery Lineker Barus
Agrienvi: Jurnal Ilmu Pertanian Vol. 17 No. 01 (2023): Juni 2023 : Agrienvi : Jurnal Ilmu Pertanian
Publisher : Agrienvi: Jurnal Ilmu Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/aev.v17i01.8687

Abstract

Terjadinya keterbukaan tanah hutan dalam kegiatan pengelolaan hutan, salah satunya disebabkan kegiatan pembukaan wilayah hutan, seperti: pembuatan jaringan jalan hutan (jalan utama, jalan cabang, jalan sarad), TPn, TPK, base camp dan lain sebagainya. Penelitian ini bertujuan  (a) menghitung kerapatan jaringan jalan hutan, meliputi: jalan utama, jalan cabang dan jalan sarad; (b) menghitung persen keterbukaan tanah hutan akibat kegiatan pembukaan wilayah hutan (pembuatan jalan utama, jalan cabang, jalan sarad dan TPn. Lokasi penelitian di IUPHHK-HA PT Bumimas Abadi Kalimantan Tengah. Hasil penelitian menunjukkan bahwa kerapatan jaringan jalan hutan berkisar 3,54 – 36,48 m/ha. Persen keterbukaan tanah hutan akibat kegiatan pembukaan wilayah hutan (pembuatan jalan utama, jalan cabang, jalan sarad dan TPn) berkisar 0,42 – 10,21%. Jalan sarad memiliki kerapatan jaringan jalan hutan dan persen keterbukaan tanah hutan yang paling tinggi dibandingkan dengan jalan utama dan jalan cabang.
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.  
Co-Authors Gery Lineker Barus I Nyoman Surasana I Nyoman Surasana Jenifer Aruan Johanna Maria Rotinsulu Moh Rizal Moh Rizal Mukhamad Najib Nuwa Octavianus, Robby Penyang Penyang Santa Tri Dwi Sartika Waruwu Yanarita Yosep Yosep