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INDONESIA
ULIN: Jurnal Hutan Tropis
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 6 Documents
 1 
Search results for , issue "Vol 4, No 1 (2020)" : 6 Documents clear
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (403.401 KB) | DOI: 10.32522/ujht.v4i1.3603

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (197.697 KB) | DOI: 10.32522/ujht.v4i1.3585

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1436.614 KB) | DOI: 10.32522/ujht.v4i1.3528

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.176 KB) | DOI: 10.32522/ujht.v4i1.3652

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (822.078 KB) | DOI: 10.32522/ujht.v4i1.3529

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (482.655 KB) | DOI: 10.32522/ujht.v4i1.3527

Abstract

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.

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