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INDONESIA
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 400 Documents
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Makrofauna Tanah di Bawah Pohon Jelutung Rawa (Dyera polyphylla Miq) Di Kebun Benih Semai (KBS) Universitas Palangka Raya I.Y. Hutahean; Patricia Erosa Putir; Johanna Maria Rotinsulu; Penyang Penyang; Setiarno Setiarno
HUTAN TROPIKA Vol 18 No 1 (2023): Volume 18 Nomor 1 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i1.10000

Abstract

Decomposition of organic matter in the soil is closely related to the presence of soil macrofauna. The better the process of organic matter decomposition, the better the physical and chemical properties of the soil, which, of course, will support soil fertility in a land area. This research aims to determine the presence of soil macrofauna under Jelutung Rawa trees (Dyera polyphylla Miq) in the peatland of the Seedling Garden (KBS) at Palangka Raya University. The research method was conducted by sampling soil macrofauna through Hand sorting method at 25 observation points and Pittfall Trap method at 20 observation points. The observed and identified soil macrofauna were examined in the laboratory using identification guidelines and literature on macrofauna types. The data were analyzed using the Shannon-Wiener species diversity index formula, the Margalef species richness index, the Pielou evenness index, and the calculation of species presence frequency. The research findings revealed 24 species, 23 genera, 20 families, 7 classes, and 3 phyla of soil macrofauna, with a total of 3,579 individuals. The values of the species diversity index (H'), species richness index (Dmg), evenness index (E), and the frequency of soil macrofauna presence (F) at KBS, Palangka Raya University were as follows: H' = 2.303325269 (moderate category), Dmg = 2.810760521 (moderate category), E = 0.724759677 (fairly even category), and frequency of presence, F = 80% - 100%.
Kehadiran Rayap dan Tanda-Tanda Infestasinya pada Bangunan Rumah Di Kawasan ‘Kebun Karet’ Gundaling, Tamiang Layang, Barito Timur, Kalimantan Tengah Eva Oktoberyani Christy; Yosefin Ari Silvianingsih
HUTAN TROPIKA Vol 18 No 1 (2023): Volume 18 Nomor 1 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i1.10056

Abstract

Land clearing carried out in part or all of the ‘Rubber Garden’ area for settlement often leave stumps and branches that becomes food sources for termites and when the food sources is ran out, termites attack extends to the wooden structure of the house building and becomes a destructive pest. The aim of this research was to detect the presence of termites through signs of infestation on house building and yard located in the Gundaling ‘Rubber Garden’, Barito Timur Regency. Twenty house buildings were observed. Visual detection of termite infestation signs was conducted on house building and yard such as on wooden building components, fuel wood, stump, dead and living trees, and recording wooden building components damaged by termite infestation. Termites specimens were collected by directly capture termites from mud tubes and nests on the observed house buildings and yards. The results showed the presence of termites from the genus Nasutitermes on house buildings through signs of infestation in the form of mud tubes, carton nests, and damaged wooden building components. In the yard, the genus Nasutitermes was found through signs of infestation in the form of a mud tubes, arboreal carton nest, while the signs of termite infestation of genus Coptotermes was in the form of shelter tubes.
Indeks Kenyamanan Termal Di Universitas Mataram : Thermal Comfort Index at Mataram University Gozali, M. Rijalul; Latifah, Sitti; Aji, Irwan Mahakam Lesmono
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.v18i2.5487

Abstract

Green Open Space (RTH) is an open area with land use dominated by vegetation. Vegetation is able to provide comfort because it can affect the microclimate.This study aims to determine the thermal comfort index of Mataram University's green open space from microclimate conditions obtained from measurements of temperature, humidity, light intensity and perceptions of the Mataram University academic community. The research method used is descriptive research method with a quantitative approach. Measurements were made at 20 points in 10 zoning by purposive sampling based on the criteria for vegetated areas and open areas. The results showed that the green open space of Mataram University had a significant difference in the level of comfort at 3 (three) times of observation, with the average THI value in the morning 24.7 (comfortable), 28.4 (uncomfortable) in the afternoon and 26.6 in the afternoon (comfortable). While, the perception of the academic community regarding the comfortable conditions felt at green open space of the University of Mataram in the morning and afternoon felt comfortable with the morning being the most comfortable time, while during the daylight they felt uncomfortable. The level of comfort felt by each person is different which is influenced by many factors such as air temperature, wind movement, humidity, solar radiation. The higher humidity and the lower air temperature, then THI value level at the University of Mataram is categorized as comfortable.
Teknik Produksi dan Nilai Finansial Madu Hutan Sialang di Kelurahan Pelalawan Kecamatan Pelalawan Kabupaten Pelalawan: Production Techniques and Financial Value of Sialang Forest Honey in Pelalawan Village Pelalawan District Pelalawan Regency Airlangga, M Sadaad; Falah, M. Darul; Suwadji, Siman
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.v18i2.10551

Abstract

Non-Timber Forest Products is currently a new prospect and hope that continues to increase, where HHBK is considered to be the core of the utilization of forest products that can simultaneously preserve forests in general. One of the Non-Timber Forest Products is honey, where honey can produce financial value so as to reduce the level of dependence of the community on forest products in the form of wood. The types of honey in the forest are very diverse, one type of honey that has a high economic value is sialang forest honey. To determine the economic value of sialang forest honey is necessary to do a financial analysis through the pattern of production conducted by the community in producing the product, so that it can be known whether the business is feasible or not to do this research was conducted in the District of Pelalawan, Pelalawan regency with qualitative methods consisting of interviews and direct observation in the field. Based on the results of the study, it was found that the financial value obtained by Sialang forest honey business owners in one year was Rp74, 905, 200.00., while the income Sialang Forest Honey Harvester in one year amounted to Rp86, 514, 000.00.
Pengaruh Kualitas Tempat Tumbuh Terhadap Pertumbuhan Cemara Udang (Casuarina equisetifolia L.) Di Pantai Cemara Tuban: The Effect of Site Quality on Growth of Beach She-Oak (Casuarina Equisetifolia) on Cemara Beach, Tuban. Istomo, Istomo; Susanti, Cindhy
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.v18i2.10583

Abstract

Beach she-oak (Casuarina equisetifolia) is the one of the most commonly she-oak species that found and planted in coastal areas. Research was conducted to determine the growth of C. equisetifolia, environmental conditions, and the effect. Data were collected by making 10 circlular plots with a radius of 17,8 m with an area of 0,1 ha and 5 subplots in each plot. The data analysis used was understorey vegetation analysis, soil analysis, and multiple linear regression models of stepwise procedure. The results showed that the species of C. equisetifolia found amounted to 486 ind/ha at various growth stages and 10 species of understorey. The basal area is determined by stand density. The greater stand density, the greater the total growth. The best site quality based on average dominant height and age is found in plot 9. Factors that influence C. equisetifolia basal areas are soil pH, N-total, C-organic, temperature and humidity with of 80,4%.
Analisis Kelas Kuat Papan Laminasi Kombinasi Kayu Sengon dan Bambu Petung: Analysis Of Strength Class of Laminated Board of Combination of Sengon Wood and Petung Bamboo Wulandari, Febriana; Amin, Radjali
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.v18i2.10675

Abstract

Fluctuations in raw wood supply from year to year can be a challenge for wood processing businesses. Sengon wood is one type of fast-growing wood that can be developed by the government as one of the solutions. Sengon wood is a fine to coarse wood with a specific gravity of 0.33 which is included in the light specific gravity range (0.29-0.56) and strength class III-IV. The sengon wood is laminated with bamboo laminate to strengthen the strength of the board. By testing the physical and mechanical properties of laminated boards made from sengon wood and petung bamboo, this study aims to determine whether there is an increase in strength class.  The research design used was an experimental factorial design with two components, four treatments, and three replications. Except for the MoE test, all tests evaluating the physical and mechanical characteristics of laminated boards made from sengon wood and petung bamboo were accepted under the JAS 234: 2007. After being converted into laminated boards, the strength class of sengon wood increased from strength class III-IV to strength class III. Sengon wood and petung bamboo can be combined to make laminated boards that can be used for heavy construction.
Pertumbuhan Semai Pelita (Eucalyptus pellita) pada Berbagai Perlakuan Dosis Pupuk Dasar NPK dengan Sistem Hidroponik NFT: Growth of Pelita (Eucalyptus pellita) Seeds in Various Dose Treatments of NPK Basic Fertilizer with NFT Hydroponic System Natashya, Ken Ghea; Andayani, Surodjo Taat; Yuslinawari, Yuslinawari
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.v18i2.10687

Abstract

This reasearch aims to determine the dose of NPK basic fertilizer that is good for the growth of lamp seedlings. This study used an experiment with one treatment factor, namely the effect of NPK fertilizer doses arranged in a Complete Randomized Design (RAL). Treatment of 5 doses of NPK fertilizer, namely fertilizer dose 0 kg/m³, fertilizer dose 1.25 kg/m³, fertilizer dose 2.50 kg/m³, fertilizer dose 3.75 kg/m³ and fertilizer dose 5.00 kg/m³. The parameters used are seedling life percentage, seedling height, seedling diameter, number of leaves, primary root length and seedling sturdiness index. The results showed the percentage of seedling life for all treatments was 100%. The dose treatment of NPK fertilizer had a significant effect on seedling height, number of leaves and seedling diameter, while it had no significant effect on primary root length and seedling sturdiness index. The dose of NPK basic fertilizer 5 kg/m3 results in good growth of lamp seedlings. Semai pelita in all NPK fertilizer dosage treatments meet the seedling quality criteria in SNI 8420 : 2018. KEYWORDS: Eucalyptus pellita, NPK fertilizer, seedling growth
Identifikasi Kesehatan Sungai Menggunakan Pemantauan Biologis Makroinvertebrata Di Sungai Pusur, Provinsi Jawa Tengah, Indonesia : River Health Identification using macroinvertebrate biological monitoring in the Pusur River, Central Java Province, Indonesia. Nugraha, Nanda Satya; Putra, Dian Pratama; Bimantio, Mohammad Prasanto; Ferhat, Amallia; Zakaria, Rama
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.v18i2.11162

Abstract

Biological assessment is an option in determining river quality, in this case related to river health. The biological assessment indicators used aquatic macroinvertebrates with research sites in the Pusur River which are located in Boyolali and Klaten Regencies, Central Java Province, Indonesia. The use of macroinvetebrata as an indicator because they are very sensitive to changes in water quality, one of which is the EPT group (Ephemeroptera, Plecoptera, and Trichoptera). Sources of river pollution will affect the existence of EPT and there are macroinvertebrates that are adaptive to contamination. This study was conducted at three monitoring stations located in the Pusur River, namely in the upstream, middle and downstream sections where each station had 6 repetitions in sampling followed by calculating the macroinvertebrate assessment index value. The results of the study show that the upstream station has an index value of 2.11 which means it is moderately polluted, the middle station has an index value of 2.40 which means it is moderately polluted and the downstream station has a value of 2.35 which means it is moderately polluted. From these results it is indicated that contamination into the river has started from the upstream area where the contamination originates from the disposal of unprocessed cow manure into river bodies, while in the middle and downstream areas the contamination that occurs is caused by dumping garbage, household waste and the use of pesticides and chemical fertilizers in agricultural ecosystem.
Kandungan Senyawa Oleoserin Baeckea. frutescens L Pada Beberapa Pelarut: Compound Content in Baeckea oleoserin. frutescens L On Some Solvents Jemi, Renhart; Nuwa, Nuwa; Sitorus, Lamboris Rianto
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.v18i2.11165

Abstract

The aim of the research is to analyze the compounds contained in Baeckea oleoresin. frutescens L which is soluble in n-hexane, chloroform and ethyl acetate. B. frutescens L oleoresin resulting from multilevel fractionation with n-hexane, chloroform and ethyl acetate solvents was analyzed using GCMS (Gas Chromatography-Mass Spectrometry). Then analyze the content. As a result, the solvent was able to dissolve many oleoresis compounds, namely n-hexane dissolving 7-Hydroxy-7-phenyl-3,9-diisopropyl-2,10-dic, chloroform solution; chloroform solvent dissolves Acetic acid ethyl ester; while ethyl acetate dissolves 1-Heptan-1,1-D2-OL. all three solvents were able to dissolve 1,8-Cineol. The conclusion is that oleoresin resulting from multilevel fractionation is able to dissolve aromatic group compounds, carboxylic acids, seikuiterpenes and monoterpenes. KEY WORD : oloeresin, Baeckea. frutescens L, fractionation, GCMS, 1,8-cineol,
Pemupukan Jelutung Rawa (Dyera pollyphylla Miq. Steenis) dengan Menggunakan Pupuk Dari Ekskresi Walet: Fertilization of Swamp Jelutung (Dyera pollyphylla Miq. Steenis) Using Fertilizer from Swallow Excrement Lendra, Kristova; Rosdiana, Rosdiana; Tanduh, Yusintha; Dwiastuti, Rini; Nursiah, Nursiah
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.v18i2.11880

Abstract

This research aims to analyze the application of swallow excrement fertilizer on the growth of swamp jelutung (Dyera pollyphylla (Miq.) Steenis) and determine the optimal dosage of swallow excrement fertilizer for swamp jelutung (Dyera pollyphylla (Miq.) Steenis). The study was conducted in 2021, observing plant height, diameter, and leaf count over a period of 2 months. The research design method used was a Randomized Complete Block Design (RCBD). The study took place in the Green Campus area of UPR, located on Yos Sudarso Street, as part of the Seedling Garden (Kebun Benih Semai or KBS) planting area, in collaboration with BPDAS-HL Kahayan and Palangka Raya University. The results of the research indicate that the growth of swamp jelutung plants in the open area (Y3 - 100 gr/plant) showed the highest average growth, while in the closed area, the highest average growth was observed in treatment Y4 (150 gr/plant) with an average height of 31.20 cm. The increase in the diameter of swamp jelutung plants in the open area with treatment Y4 (150 gr/plant) showed the largest average value, which is 14.3 cm. Similarly, in the closed area with the same treatment (Y4 - 150 gr/plant), the average diameter was 14.4 cm. The increase in the number of leaves in the open area with treatment Y150 showed an average value of 1857 leaves, while in the closed area with the same treatment (Y150), the average number of leaves was 2136

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