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Jurnal Hutan Tropika
Published by Universitas Palangka Raya
ISSN : 16937643     EISSN : 26569736     DOI : https://doi.org/10.36873/jht.v14i1.327
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
adalah jurnal yang memiliki fokus dalam bidang ilmu dan teknologi kehutanan tropika serta semua aspek yang terkait dengan bidang ini. Jurnal ini memiliki ISSN: 1693-7643. Jurnal Hutan Tropika diikelola oleh jurusan Kehutanan, Fakultas Pertanian, Universitas Palangka Raya (Jurnal Hutan Tropika is a journal that focused on science and technology of tropical forestry and also all aspects concerned. This journal has ISSN: 1693-7643. Journal Hutan Tropika is managed by Forestry Department, Faculty of Agricultural, Universitas Palangka Raya)
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 359 Documents
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Hubungan Umur, pH, dan C-Organik Terhadap Kerusakan Eucalyptus sp Akibat Serangan Angin: The Relationship of Age, pH, and C-Organic to Eucalyptus sp Wind Damage Suhartati, Tatik; Maystang, Jeffry; Kusumaningsih, Karti Rahayu; Purwadi, Purwadi
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.v19i1.14254

Abstract

The planting process of Eucalyptus sp is susceptible to wind damage. Many factors cause trees to be damaged by wind. These factors include the condition of the stand and other factors. This study aims to determine the relationship between stand age, soil characteristics (pH and C-Organic) to the percentage of wind damage. A total of 179 permanent plots were sampled at three ages of 6, 18 and 30 months. Multiple linear regression backward elimination method was used to determine the relationship of age, pH and C-organic to the percentage of damage. The results showed that the older the age of the stand, the percentage of damage increased. Soil characteristics have not been able to explain their direct.
Potensi Serapan Karbon Hutan Mangrove Pesisir Sinjai Utara Kabupaten Sinjai: Carbon Absorption Potential Of Mangrove Forests North Sinjai Coast, Sinjai District Azizah, Rahmah; Alamsyah, Ridha; Mutahharah, Mutahharah; Akram, Akram; Nurhaliza, Nurhaliza; Maulana, Wahyu
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.v19i1.14262

Abstract

Mangroves play an important role in carbon storage and absorption. Mangrove ecosystems absorb carbon dioxide from the atmosphere through photosynthesis, converting it into biomass. Mangroves can store up to four times more carbon per unit area than tropical forests. This study aims to determine the density, stem diameter, basal area of ​​mangroves, biomass, content, and the ability of mangroves to absorb carbon in the air. The method used is the calculation of several ecological indices. While the carbon content and absorption use the allometric method to determine the biomass of mangrove species. Furthermore, the calculation of carbon content and carbon absorption capacity. The average density of mangroves obtained ranges from 0.24-0.55 ind / m2, while the average DBH is between 6.86-16.10 cm and the average basal area is 36.94-203.48 m2. The average biomass of mangrove trees is 13,311-98,752 kg / tree or 288,885 ± 96,957 tons / ha. The average carbon content is6,256-46,414 kg/tree or 107,576±45,570 tons/ha. The carbon absorption capacity of the coastal mangrove forests of North Sinjai is an average of 22,961-170,338 kg/tree or 394,803±167,241 tons/ha. Mangroves are one of the key components in climate change mitigation. Conservation and restoration of mangrove ecosystems are important strategies in efforts to mitigate global climate change and improve the sustainability of coastal environmental ecosystems.
Kombinasi Perlakuan Suhu, Lama Perendaman dan Jenis Air Terhadap Perkecambahan Benih Trembesi (Samanea saman (Jacq.) Merr.): Combination of temperature treatment, saoking time and water on Trembesi Seed (Samanea saman (Jacq.) Merr.) Germination Sudomo, Muhammad Fadhil Amiruddin; Dwiastuti, Rini; Madiyawati, Milad; Koroh, Desy Natalia; Tambun, Kesia Br Tarigan
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.v19i1.14274

Abstract

This study aims to determine the effect of seed soaking temperature in room temperature water (240C) and (600C), determine the effect of soaking time at the level of 0 hours (control), 6 hours, 12 hours, 18 hours, determine the effect of the type of soaking water, namely Kahayan River water, Peat water, PDAM water, Aquades water, and determine the effect of all the best interactions on the germination of Trembesi tree seeds. The research method used a complete randomized design (CRD) Factorial A x B x C, each factor A = 2 levels namely A1 (240C) and A2 (600C), factor B = 4 levels namely B1 (0 hours) without control, B2 (6 hours), B3 (12 hours), B4 (18 hours), factor C = 4 levels namely C1 (khayan river water), C2 (peat water), C3 (PDAM water), C4 (distilled water) with 3 replicates. The results showed that water with a temperature of 600C for a soaking time of 6 hours and soaking in peat water produced the best germination of Trembesi tree seeds because the temperature can help the process of breaking down food reserves so that enzymes work well and soaking for 6 hours can absorb water so that the softening of the seed coat and the development of the seed coat and the soaking water used has a high content of organic matter and carbon substances that are acidic with a pH of 3.8 which can soften the seed coat so as to accelerate the germination process. The interaction factor of temperature, soaking time, and soaking water (AxBxC) at a temperature of (600C) for 6 hours using peat water produces the best germination of Trembesi tree seeds.
Sifat Fisika Dan Mekanika Papan Partikel Dari Kayu Durian (Durio zibethinus Murr): The Physical and Mechanical Properties of Particle Board from Durian Wood (Durio zibethinus Murr) Indrayanti, Lies; Siska, Grace; Wahyudi, Wahyudi; Setiarno, Setiarno; Sianipar, L.
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.v19i1.14275

Abstract

The studi aimed to determine the characteristics particle board of Durian Wood. The material used durian wood which is no longer productive. The adhesive used is PVAc adhesive. The research method used a Completely Randomized Design with a single factor, namely particle size with 3 levels, namely 4.5 and 6 mesh. The parameters tested, namely the physical and mechanical properties of the board, refer to the SNI 03-2105-2006 standard. The results showed that the average water content ranged from 16.94–17.25%, density 0.134–0.145 g.cm-3, water absorption capacity 2.09– 2.50%, thickness expansion 10.93–15.25% , while MoE 65629.90-79209.38 kgf.cm-2, MoR 267.86 – 431.33 kgf.cm-2, internal bond strength 0.08–0.15 kgf.cm-2, Screw holding strength 0.021 –0.035 kgf. Thickness development at the 5 mesh level, Modulus of Elasticity (MoE), and Modulus of Ropture (MoR) have met the SNI 04-2105-2006 standards, while the water content, density, water absorption capacity, internal adhesive strength and Screw holding strength still do not meet the standards set. The highest MoE reached 125,000 kgf.cm-2 and MoR reached 643 kgf.cm-2. The results of mechanical tests show that particle board of durian wood has the potential to be used as interiors construction.
Struktur Anatomi Kayu Meranti Tembaga (Shorea leprosula Miq.) pada PT. Dwima Jaya Utama: Anatomical Structure of Meranti Tembaga (Shorea leprosula Miq.) at PT. Dwima Jaya Utama Joni, Herwin; Wahyudi, Wahyudi; Sosilawaty, Sosilawaty; Santoso, Mahdi; Toni, Hendra; Triyadi, Antonius; Aguswan, Yusuf
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.v19i1.14289

Abstract

This study analyzes the quality of  meranti tembaga wood from natural forests with a maximum diameter of 50 cm as a material for the timber management industry. Furthermore, the study also examined the quality of meranti tembaga wood (Shorea leprosula Miq.) from silin engineering plants with diameters of 28 cm, 36 cm, 43 cm, and 51 cm.  This study also examines the diversification of the use of copper meranti wood from silin engineering plants to explore the potential applications of this wood in various industries. Meranti tembaga wood samples were taken from natural forests and plantation forests (intensive silviculture/silin) of PBPH PT Dwimajaya Utama, Central Kalimantan. Furthermore, wood anatomy testing was carried out at the Forest Hasi Technology Laboratory, Gadjah Mada University. The quality of Copper meranti wood from natural forests with a minimum diameter of 50 cm for the wood processing industry was studied. The results of the analysis of the quality of  meranti tembaga wood from Silin engineering plants showed significant variations based on diameter. For a diameter of 28 cm, the cell wall thickness is 1.675 and the lumen diameter is 22.752. For a diameter of 36 cm, the cell wall thickness is 1,633 and the lumen diameter is 20,739. For a diameter of 43 cm, the cell wall thickness is 1.592 and the lumen diameter is 2.268. For a diameter of 51 cm, the cell wall thickness is 1,738 and the lumen diameter is 21,066.
Karbon Tersimpan Analisis Komposisi Dan Potensi Cadangan Karbon Tersimpan Pada Vegetasi Penyusun Riparian Sungai Pusur Kabupaten Klaten: Analysis Of Composition and Potential Carbon Stock Stored in Riparian Vegetation Pusur River in Klaten District Woesono, Hastanto Bowo; Wahyudiono, Sugeng; Telaumbanua, Imelda Kristy
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.v19i1.14340

Abstract

The quantity of biomass in the forest is the result of the difference between production through photosynthesis and consumption by respiration and harvesting processes. This study aims to determine the types of vegetation, vegetation composition and potential carbon stocks at various altitudes. This study used a quantitative survey method, to obtain and collect vegetation information data along the riparian of the pusur river. The conclusion of the types of vegetation that make up the Pusur River Riparian is 36 types of understory plants, 8 types of seedlings with a diameter of less than 5 cm, 17 types of trees with a diameter of 5-20 cm, 21 types of trees with a diameter of 20-50 cm, 7 types of trees with a diameter above 50 cm. The composition of vegetation types that make up the Pusur River Riparian is 1,239 individual understory plants, 33 seedlings less than 5 cm in diameter, 85 trees 5-20 cm in diameter, 104 trees 20-50 cm in diameter, and 14 trees above 50 cm in diameter. The potential carbon stock stored in the vegetation that makes up the Pusur River Riparian is in block 1 upland as much as 395.24 tons, block 2 middle land as much as 309.36 tons and block 3 lowland as much as 360.98 tons, with a total along 26 km of 1,065.57 tons, and for those that are likely to be lost due to commercial timber species is 701.63 tons or equivalent to 65.85% of the total carbon.
Produksi dan Kontribusi Pemanfaatan Arang Alaban (Vitex pubescens) pada Pendapatan Masyarakat Desa Gohong Kabupaten Pulang Pisau: Production And Contribution of Charcoal Utilization Alaban (Vitex pubescens) On Income of Gohong Village Community in Pulang Pisau Regency Nursiah, Nursiah; Rosdiana, Rosdiana; Rahmawati, Reni; Kahayani, Wayan Dini Apri
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.v19i1.14446

Abstract

Charcoal is one solution to minimize dependence on fossil fuel use, as charcoal is considered cheaper and can be continuously produced because its raw materials come from renewable wood. One type of wood used to make charcoal is Alaban wood (Vitex pubescens). The aim of this study is to analyze the production and utilization of Alaban charcoal used by the people of Gohong Village and to analyze the income level and contribution of Alaban charcoal to the income of the people of Gohong Village. The necessary data includes production, utilization, production costs, total receipts from Alaban charcoal production, selling price, income from Alaban charcoal production, and income from other than Alaban charcoal production. The results of the study showed that the total production of Alaban charcoal was 8,016 sacks/year with a weight of 25 kg/sack. The total income from Alaban charcoal production was Rp 138,884,000/year with an average respondent income of Rp 10,683,385/year. The contribution of Alaban charcoal production to the respondents' income was in the small income contribution category, which was 36.11%, so the average production of Alaban charcoal was used as a side job by respondents for additional income. This Alaban charcoal business can create jobs if done regularly.
Potensi Pertumbuhan Tanaman Jelutung Rawa di Kecamatan Jabiren Raya Kabupaten Pulang Pisau : Potential Growth of Swamp Jelutung Plants in Jabiren Raya District, Pulang Pisau Regency Gaman, Sampang; Rotinsulu, Johanna Maria; Sukarna, Raden Mas; Penyang, Penyang; Nuwa, Nuwa
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.v19i1.14448

Abstract

The cultivation of swamp jelutong plants on peat swamp land has been widely practiced by communities in Central Kalimantan Province. However, jelutong cultivation efforts are prone to failure due to various factors such as land fires and other factors. The Indonesian government through the Ministry of Forestry in 2003-2005 carried out the Forest and Land Rehabilitation Movement, which involved planting unproductive land in state forest areas and community forests with local species such as jelutong, pulai, balangeran and other species. After almost 20 years of planting Jelutung, information related to the growth and sap potential of Jelutung swamp is not yet available. The purpose of the study was to analyze the potential growth of diameter and height of jelutong plants. This research was conducted for 3 months from October-December 2023. The location of the research was specifically carried out in Jabiren Raya Sub-district (Jelutung plantation of Mr. Margo) and (Jelutung plantation in Jabiren) Pulang Pisau District. The method used to study the dynamics of jelutong plant growth and sap potential was purposive sampling, by selecting and determining jelutong plants based on the age class of jelutong plants with a sampling intensity of ± 5% of the area, the measurement results were analyzed through correlation regression tests in the form of tables and graphs. The results of research conducted in 2 locations show the results of measurements of diameter and height growth of jelutong plants.
Rancangan Teknik Konservasi Tanah dan Air Pada Berbagai Tipe Penggunaan Lahan untuk Mitigasi Bencana Longsor di DTA Giritengah: Design Of Soil and Water Conservation Techniques on Different Types of Land Use for Landslide Mitigation in Giritengah Catchmen Area Saputro, Supriyanto
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.v19i2.15014

Abstract

ABSTRACTS Abstracts Landslides in the Giritengah Watershed are influenced by geological conditions, rainfall, geomorphology, soil types, and inappropriate land use practices. This study analyzes landslide vulnerability, assesses land use impact on this vulnerability, and designs soil and water conservation structures for the area. Using GIS analysis and overlay scoring of thematic maps, the study evaluates rainfall, slope steepness, geology, and land use to determine landslide vulnerability. Overlay analysis of land use and landslide vulnerability maps assesses how land use types influence landslide risk. The findings reveal that high landslide vulnerability characterizes 44.02% of the watershed, spanning 158.69 hectares, while very low vulnerability covers only 0.12% (0.79 hectares). Land use changes significantly impact landslide vulnerability, particularly slope stability and surface runoff rates. GIS is used to determine suitable soil and water conservation techniques (SWCT), considering land use parameters, land function, land criticality levels, groundwater recharge criticality, and landslide vulnerability. In high-susceptibility areas, both vegetative and civil engineering approaches are employed. Vegetative measures include environmental greening in village settlements (38.51 hectares), intensive community forests (0.13 hectares), and mixed garden agroforestry (218.48 hectares). In protected areas, similar activities cover 18.6 hectares, 12.92 hectares, and 30.10 hectares, respectively. Civil engineering SWCT in protected areas involve constructing 3 Dam Retainers and 2 Gully Plugs, while in cultivation areas, 15 Gully Plugs are constructed. KEYWORDS: Watershed Area, Landslide, Land Use, Soil and Water Conservation Techniques.
Pemetaan Sebaran Spasial Pohon di Areal Blok Miniatur PT.Timberdana Kecamatan Damai Kabupaten Kutai Barat: Mapping of the Spatial Distribution of Trees in the Miniature Blok Area of PT.Timberdana Damai District, West Kutai District Kardika, Adelia Juli; Aldi, Muhammad; Malaysia, Emi; Fathirizki Agsa Kamarati, Kiamah
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.v19i2.15109

Abstract

This research is motivated by the fact that the natural forest in the miniature block area of PT. Timberdana is covered with various types of vegetation which is used as an educational forest area, research and a place for sustainable development. This area does not yet have a tree distribution map which can later be used as information for sustainable management. So the aim of this research is to identify the type, number of trees, coordinate the trees, and create a map of the distribution of trees in the PT miniature block area. Timberdana and identify its spatial distribution patterns. The research method involves field surveys to identify tree types, coordinate trees, and collect data on trees in the miniature block area. Measurement and identification of tree species is done with the help of botanists and appropriate reference guides. The collected data was analyzed using spatial analysis and mapping techniques using GIS (Geographic information system) software for data processing to visualize the distribution of tree species and identify their spatial distribution patterns. The results of the research show that there are many species of natural forest trees that are quite tall in the PT miniature block. Timberdana. The trees in the block area consist of 17 types with a total of 401 trees from 7 families. Based on the results of mapping the distribution of trees in the miniature block area of PT. Timberdana's spatial distribution pattern is random. This shows that random distribution patterns tend to be safer for plant management efforts

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