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ULIN: Jurnal Hutan Tropis

UJHT
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Published by Universitas Mulawarman

ISSN : 25991205 EISSN : 25991183 DOI : -

Core Subject : Social,

Environmental Science

ULIN: Jurnal Hutan Tropis published by Forestry Faculty of Mulawarman University, which is published twice a year in March and September with p-issn 2599-1205 and e-issn 2599-1183. It contains articles of research or study of literature in the field of Forest Management, Forest Conservation, Silviculture, and Forest Product. Language used for full article in this journal is Bahasa Indonesia, abstract in English and Bahasa Indonesia.

Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)

Articles 242 Documents

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ESTIMASI CADANGAN BIOMASSA PADA POHON GAHARU (Aquilaria malaccensis Lamk.) BERUMUR 14 TAHUN DI HUTAN PENDIDIKAN FAHUTAN UNMUL (HPFU) SAMARINDA KALIMANTAN TIMUR Mirna Mirna; Rita Diana; Deddy Hardiyanto; Sidraha Kawaqib Putra
ULIN: Jurnal Hutan Tropis Vol 3, No 2 (2019)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v3i2.2871

Agarwood Tree is one of the important species of tree that produces Gaharu resin. The aim of this research was to determine the tree physical condition, tree health, and its biomass value. The research was examined in Education Forest of Mulawarman University Samarinda East Borneo. The method used for this research was purposive sampling, which purposely chooses the tree (Aquilaria malaccensis Lamk) as much as 40 trees. Whereas biomass value using three Allometrik equations with different parameters, obtained with the biggest biomass value using tree diameter, wood density, and tree length. Furthermore, the second biggest biomass value using two parameters of tree diameter and wood density, while the smallest biomass value using one parameter equation which was tree diameter.

RANCANG BANGUN MESIN PELET BIOMASSA TERINTEGRASI DENGAN PENDEKATAN DIAGRAM FAST Gusti Hardiansyah; Ivan Sujana; Ratih Rahmahwati; M. Taufiqurrahman
ULIN: Jurnal Hutan Tropis Vol 4, No 1 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

The purpose of this research is to support and encourage the development of sustainable palm oil, reduce the environmental impact caused by the rehabilitation of oil palm plants that are not well managed by the managers of oil palm plantations and produce technological.Therefore, in-depth analysis is needed related to the innovation of biomass pellet printing machine (biopellet) technology using the diagram function Function Analysis and System Technique (FAST). Analysis is done by determining the critical functions that must be present in an integrated biomass pellet machine (biopellet) on the performance of a machine that can produce biomass pellets (biopellet) and is moveable. The results of the study using the FAST approach produce engine design that has the main function in a biopellet machine that is moveable by considering the critical functions such as the cutting function of waste palm stalks, enumeration functions, raw material mixing functions, pellet printing functions and skeleton holder functions that can integrate all functions engine by considering the moveable nature of the engine. It is hoped that this research can be developed even better starting from the quality of the cutting edge of the blade on the machine and the printing quality of the biopellet.

SEBARAN BASIS HUTAN RAKYAT DI KABUPATEN PANGANDARAN PROVINSI JAWA BARAT Suhartono Suhartono
ULIN: Jurnal Hutan Tropis Vol 4, No 1 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

The Pangandaran Regency's forestry sector has the potential to be a driving force in regional economic development. However, the development of the forestry sector, especially private forest, has not yet focused on locations of private forest bases so the utilization of available resource potentials has not been optimal so that an appropriate strategy is needed for its development. This study aims to determine the base of private forest in the Pangandaran Regency that potential to support regional economic development. The method used in this study is a desk study by utilizing secondary data on private forest area and area size in the Pangandaran Regency, which is published by the Central Statistics Agency. Data analysis was performed descriptively using the Location Quotient method approach to determine the areas that were the basis or non-basis of private forest. The results showed that 4 of 10 subdistricts in the Pangandaran Regency were included in the category of private forest base and could be a priority scale in development including Cigugur Subdistrict, Parigi Subdistrict, Sidamulih Subdistrict and Pangandaran Subdistrict with LQ value of 3.21; 1.78; 1.08 and 1.03

PENYUSUNAN RENCANA TATA RUANG DESA (RTRWDES) SECARA PARTISIPATIF DI DESA MUARA SIRAN DAN DESA LIANG BUAYA KECAMATAN MUARA KAMAN KABUPATEN KUTAI KARTANEGARA Saparwadi Saparwadi; Yohanes Budi Sulistioadi; Rujehan Rujehan
ULIN: Jurnal Hutan Tropis Vol 4, No 1 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

This study aims to obtain information on plans and spatial use patterns and spatial structures in Muara Siran and Liang Buaya villages and compile information on land cover and socio-economic conditions of the community. Muara Siran Village Spatial Plan and Liang Buaya Village Spatial Plan are divided into 2 areas, namely the Cultivation Zone and the Protected Area. The preparation of the RTRW of Muara Siran Village and Liang Buaya Village is the first example for the Regency Government in the preparation of a participatory Village RTRW in the Kutai Kartanegara District environment. The people of Muara Siran Village and Liang Buaya Village are dominated by the Kutai tribe, most of whose livelihoods are fishing, farming and cage cultivation. So that village spatial planning becomes very important in the utilization and control of natural resources. With the implementation of the participatory village spatial planning concept, it needs to be replicated by other villages in Kutai Kartanegara Regency to support development as well as to protect the area through spatial planning so that in future development planning is in accordance with the potential of each village.

PERTUMBUHAN DAN MUTU FISIK BIBIT KAYU KUKU (Pericopsis mooniana) PADA MEDIA TANAM TAILING PERTAMBANGAN EMAS RAKYAT DENGAN PEMBERIAN AMELIORAN Rizal Adi Saputra; Meyla Riniarti
ULIN: Jurnal Hutan Tropis Vol 4, No 1 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

One of the strategies in rehabilitation of gold mining tailings is used pioneer trees. Pericopsis mooniana is one of pioneer types which capable to adapt to marginal and unproductivel lands. The objective of this research were to find out the growth and physical quality of P. mooniana seedling on artisanal gold mining tailings with the addition of compost elephant dung and humic acid. Growth observation and physical quality assessment were done to P. mooniana seedlings aged 3 months and 10 days, placed on polybag (15/7.5 cm x 20 cm). The experimental design used a completely randomized design with six growth media as treatments and five replications, (1) topsoil 100%, (2) talings 100%, (3) tailings 50% + elephant dungs 50%, (4) tailings 50% + elephant dungs 50% + humic acid (2,000 ppm), (5) tailings 75% + elephant dungs 25%,(6) tailings 75% + elephant dungs 25% + (humic acid (2,000 ppm). Data were analyzed statistically using analysis of variance followed with a Least Significant Difference test. The stages of the research were: seedling activity, growth observations and physical quality assessment seedlings. The parameter observed were percentage of life, increment height and diameter, number of leaf, leaf area, number of nodules, total dry weight, robustness, ratio of leaves and roots, and seed quality index. The result showed that P. mooniana seedlings were able to grow and adapt to artisanal gold mining tailings with a seedlings quality indexs value of more than (0.09), but the addition of ameliorant did not have any impact yet.

KEHADIRAN JENIS AMFIBI ORDO ANURA PADA AREAL REKLAMASI PASCA TAMBANG PT. KELIAN EQUATORIAL MINING KABUPATEN KUTAI BARAT Mochamad Syoim
ULIN: Jurnal Hutan Tropis Vol 4, No 1 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

PT Kelian Equatorial Mining (KEM) applied the open pit mining practice in its production phase in the past. The barred land was formed not only by the excavation and digging processes, but also formed by the dumping of the waste rocks. These processes were assumed as the factor the biodiversity decline or loss. The performance of completed and ongoing reclamation efforts, which refer to the most current regulation and law, is solely defined through the quantitative assessment on the survival of the planted tress on the reclamation site, on the other hand, despite very important, no such assessment is undertaken to examine the ecological recovery of the biodiversity on that site. Hence, this research aims at (1) identifying the presence of amphibians from the order of anura (frog and toad) in the reclamation sites of post open pit mining area, (2) identifying the dynamic of the presence of such amphibians during a 5 year time series. The research identified 13 species of amphibians, which categorized into 6 families. Most of the observed location are still dominated by the common species, which could be encountered in very common open area habitat.

PEMODELAN HIDROLOGI DENGAN HEC-HMS DI SUB-DAS KARANGMUMUS SAMARINDA Rachmad Mulyadi; Yohanes Budi Sulistioadi; Ali Suhardiman
ULIN: Jurnal Hutan Tropis Vol 4, No 1 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Hydrological Modeling with HEC-HMS in the Karangmumus Sub-watershed Samarinda. The HEC-HMS is used to develop a model of water flow in the Karangmumus which can be used as an alternative for flooding problem. The purpose of this study is to determine the amount of flow discharge generated from rainfall that enters the Karangmumus using the HEC-HMS and to determine the effect of rain parameters on the HEC-HMS to make an hydrological model simulation.For simulation using daily rainfall and water level data, curve number, percentage of watertight, amount of initial absorption and the time needed to reach the peak discharge in the sub-watersheds obtained from the river model created. The highest rainfall Karangmumus Sub-watershed that is 84,4 mm produces a discharge of 211 m3/sec and at the lowest rainfall of 1,05 mm produces a discharge of 3,4 m3/sec. Hydrological modeling of the simulation results has the same hydrograph with the rainfall data but not the discharge data calculated with the rating curve. The validation of observing the debit data of the efficiency value (NSE) <0,36 which means that the data used are not satisfactory or invalid.

Ciri Makroskopis, Kekerasan dan Berat Jenis Fosil Kayu Asal Desa Purwajaya Kutai Kartanegara Robin Sulistyo; Nani Husien; Erwin Erwin; Agus Sulistyo Budi
ULIN: Jurnal Hutan Tropis Vol 5, No 1 (2021)
Publisher : Fakultas Kehutanan Universitas Mulawarman

The results showed that macroscopically the studied wood fossils had brick red, gray, yellow, brown, and black in the first sample (FKA), and the second sample (FKB) had white, gray, and light brown colors, which this color difference was probably due to the cells being mixed with other inorganic elements even though they were found in adjacent locations. Another observation of the macroscopic features of the two samples indicated that cells were still obviously visible as on normal wood, such as pores, rays, and axial intercellular canal. Based on the characteristics of AIC, it was found to have general features that were often found in several types of wood in the Dipterocarpaceae family. The results of measuring the hardness value, the two fossil samples have the same hardness value, namely 4 Mohs scale. For the meantime, the specific gravity of the FKA and FKB samples were 2.54 and 2.35, respectively.

Uji Ketahanan Api Kayu Sengon (Paraserianthes falcataria (L.) Nielsen) yang Diawetkan dengan Bahan Pengawet Natrium Silikat (Na2SiO3) Zainul Arifin; Irvin Dayadi; Cristianus Renaldy
ULIN: Jurnal Hutan Tropis Vol 4, No 2 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

The results of this study indicate that the average value of air dry moisture content of sengon wood is 14.081%, the air dry density is 0.326 g/m3 and oven dry density is 0.295 g/m3. The highest average retention value was at 3 days immersion with a concentration of 7% i.e. 16.161 kg/m3 and the lowest was at 1 day immersion with a concentration of 3% i.e. 5.161 kg/m3. The highest value of burn intensity at 2 days immersion with a 3% concentration i.e. 16.249% and the lowest at 1 day immersion with a concentration of 7% i.e. 6.025%. Preservation of sengon wood using natrium silicate at a concentration of 3%, 5% and 7% and immersion for 1 day, 2 days and 3 days is less effective in holding the fire rate, because the value is still below the ASTM E69 standard (2002) i.e. 7.5. The effective test of preservative (W) obtained the highest value of burn intensity at 1 day immersion with a concentration of 7% i.e. 7,490 and the lowest value at 2 days of immersion with a concentration of 3%, i.e. 3,231. The maximum temperature ranges from 206.0-291.2°C and the cooking time ranges from 206.1-607.8 seconds.

Karakteristik Minyak Atsiri Daun Melaleuca leucadendra L. dari Empat Lokasi yang Berbeda Di Kabupaten Paser Kalimantan Timur Agmi Bagus Kartiko; Harlinda Kuspradini; Enih Rosamah
ULIN: Jurnal Hutan Tropis Vol 5, No 2 (2021)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Cajuput oil, which comes from the Melaleuca, is one of the NTFPs that is widely used for various health or pharmaceutical products so that it is a product that is in great demand. This study aimed to measure the yield and analyze the physical properties of M. leucadendra L. essential oil which comes from Paser, East Kalimantan. Samples were taken from 4 different locations, namely Rantau Panjang, Jone, Padang Pangrapat and Pondong Baru. Essential oils were obtained from distillation process using the water and steam method. The physical characteristics of essential oils were analyzed including visual color and refractive index using a hand refractometer. The results of M. leucadendra L. oil distillation from 4 locations, namely Rantau Panjang, Jone, Padang Pangrapat and Pondong Baru. showed the various yields, among others, 0.030%, 0.066%, 0.104% and 0.031%. The color of the essential oil observed also varied from yellow to orange and the refractive index range obtained was 1,429-1,450. The results of this study have the potential as a new source of cajuput oil originating from East Kalimantan, however further research is needed to find out about the appropriate distillation technique in order to increase the yield of M. leucadendra essential oil.

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Rachmad Mulyadi

Contact Email -

Phone 0541-6525067

Journal Mail Official ulin.jhuttrop@fahutan.unmul.ac.id

Editorial Address Jl. Penajam Kampus Gunung Kelua PO. Box 1013

Location Kota samarinda, Kalimantan timur INDONESIA

Abstract

Abstract

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Rachmad Mulyadi

Contact Email
-

Phone
0541-6525067

Journal Mail Official
ulin.jhuttrop@fahutan.unmul.ac.id

Editorial Address
Jl. Penajam Kampus Gunung Kelua PO. Box 1013

Location
Kota samarinda,

Kalimantan timur

INDONESIA