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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
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Search results for , issue "Vol 4, No 2 (2020)" : 6 Documents clear
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (741.915 KB) | DOI: 10.32522/ujht.v4i2.4251

Abstract

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.
Produktivitas Usahatani Jamur Tiram Putih Berdasarkan Segmentasi Usaha Di Kabupaten Ciamis, Jawa Barat Eli Ukiwa; Suhartono Suhartono
ULIN: Jurnal Hutan Tropis Vol 4, No 2 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (510.573 KB) | DOI: 10.32522/ujht.v4i2.4256

Abstract

White oyster mushroom cultivation has been widely recognized by the people in Ciamis Regency on a small or large scale. However, this farming phenomenon experienced many ups and downs. Though the need for mushroom consumption by the market is still quite high. This study aims to determine the extent to which the productivity differences of white oyster mushroom farming are cultivated by farmers in three different business segments and how is the business feasibility. The method used in this study is a survey method. Data were collected through interviews with purposive sampling to mushroom farmers. To find out the productivity and feasibility of farming, a cost, and income analysis approach and R/C. Then a different test is conducted to determine the differences in income between business segments. The results showed that the farming of white oyster mushrooms in the three business segments can generate different incomes. The business segment from baglog to harvest has the highest productivity (R/C 1,16). However, the highest income is generated by white oyster mushroom farming in the baglog manufacturing segment. Financially the three segments of white oyster mushroom farming are feasible because they can generate positive income and R/C>1  
Menyelaraskan Kebijakan dan Sistem Manajemen Hutan Ramin (Gonystylus spp.) untuk Perbaikan Ekosistem Rawa Gambut di Indonesia Marcellinus Mandira Budi Utomo
ULIN: Jurnal Hutan Tropis Vol 4, No 2 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (118.789 KB) | DOI: 10.32522/ujht.v4i2.3900

Abstract

Recently, Indonesian peatland has become global attention regarding several forest fire events, which are seemingly caused by the improper ecosystem management system. Through literature review, this paper discusses one of specific forest formations in peat swamp, namely ramin forest (Gonystylus spp.). An assessment is performed for ramin forest management system from time to time using a framework developed by Indonesian Eco-Labelling Organisation. The criteria applied are sustainability of production, ecological, and social functions. Several recommendation to refine ramin forests are (1) assure new concession permit in any peat swamp areas stops and (2) hasten the implementation of one-map policy as a baseline for further planning and calculating current potency of ramin. For the new regulation, activities can be carried out are (1) to rehabilitate the degraded peat-peat swamp forests, (2) to strictly protect the last pristine ramin forests, (3) to establish seed orchard from seed resources to conserve the germ plasma, (4) to support research into ramin degraded forest restoration and the ecological relationship in pristine ramin forests to better understand how the system works, (5) to recalculate the current diameter increment and to use that to calculate the harvesting rotation, and (6) to uphold forestry law more firmly.
Kajian Kesehatan Hutan dalam Pengelolaan Hutan Konservasi Rahmat Safe'i; Hari Kaskoyo; Arief Darmawan; Yullia Indriani
ULIN: Jurnal Hutan Tropis Vol 4, No 2 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (79.243 KB) | DOI: 10.32522/ujht.v4i2.4323

Abstract

Conservation forests must maintain the function and quality of their forests so that the preservation of the living natural resources therein is not damaged and the balance of the ecosystem is well ordered. The benefits of a conservation forest can be felt by the people who live around the forest such as carbon, water sources, non-timber forest products so that the community can prosper. Forest health monitoring is an activity designed to monitor the condition of forest health based on the results of measurable ecological indicators for forest management decision making. The purpose of this study is to determine the value of conservation forest health status and identify internal and external factors of conservation forest health. The method used is Forest Health Monitoring for assessing forest health status and Statistical Product and Service Solutions 20. software for determining the relationship of internal factors with external forest health. The results showed the health status of the conservation forest included in the management area of the Sustainable Peoples Forest System Farmer Group in the Teluk Pandan sub-district of Pesawaran District included in the medium category (3,20) . Internal factors that affect the health of conservation forests are biodiversity and tree damage while external factors that affect the health of conservation forests are the level of farmers' knowledge, farmer participation and farmer motivation.
KEMATIAN TANAMAN GAHARU AKIBAT SERANGAN Heortia vitessoides Moore DI MUARA KEMBANG, KUTAI KERTANEGARA Ngatiman Ngatiman; Erwin Erwin
ULIN: Jurnal Hutan Tropis Vol 4, No 2 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.224 KB) | DOI: 10.32522/ujht.v4i2.4452

Abstract

Gaharu (Aquilara microcarpa Baill) planted in monoculture in 2008 at Muara Kembang, Kutai Kartanegara was attacked by Heortia vitessoides Moore which resulted in the death of the plant. To explain the phenomenon of plant death, this research was conducted by observing the frequency and intensity of attacks, the effect of spacing, and pattern of pests as well. Observations were made on a 100 x 50 m striped plot with two spacing arrangements of 3 x 2 m and 2 x 2.5 m. The difference in attack frequency of H. vitessoides between the two spacing was analyzed statistically using t-test. Plant mortality with a high frequency and intensity of pest attack occurred in the 3 x 2 m spacing of the area with a monoculture planting system. Monoculture planting systems triggered patterns of attack and behavior of pests attacking throughout the year with a large number of larvae so they can eat all plant leaves. It is recommended that a mixed planting system be applied to gaharu with other useful plant species as well as to prevent and control it early if H. vitessoides pests are found before it spreads that cause plant death.
Kualitas Air pada DAS Bugis dan DAS Wain di Kawasan Hutan Lindung Sungai Wain Balikpapan Sri Sarminah; Dyna Raya Anugerah; Marlon Ivanhoe Aipassa; Agus din
ULIN: Jurnal Hutan Tropis Vol 4, No 2 (2020)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (685.018 KB) | DOI: 10.32522/ujht.v4i2.4224

Abstract

 This study aims to determine the latest water quality conditions in terms of physical, chemical and biological properties in the DAS Bugis and DAS Wain. Analysis of water sample was conducted at the Water Quality Laboratory of the Department of Aquatic Resources and Fisheries and Marine Sciences, Mulawarman University, Samarinda. Data analysis refers to the Water Quality Standards based on East Kalimantan Regional Government Regulation No. 02/2011 about Management of Water Quality and Water Pollution Control. The results showed that the parameters of temperature, colour, TSS, TDS, BOD5, SO4 and NO3 were included in the Class I water quality standards that can be used as drinking water or for other consumption purposes. COD parameters (in the Right River Basin), DO and NH3 (in the River Basin) were included in Class II water quality standards, which can be used for water recreation infrastructure / facilities, freshwater fish farming, animal husbandry and plants irrigation. The pH parameters in the DAS Bugis were included in class IV water quality standards that can only be used to irrigate plants. Pollutant loads that contribute a lot to enter were agricultural and agricultural waste and domestic waste originating from community forest areas.

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