Jurnal Hutan Tropika https://e-journal.upr.ac.id/index.php/JHT <p><img src="https://e-journal.upr.ac.id/public/site/images/editorjht/JHT-DES_20171.jpg" width="120" height="170" /></p> <p><strong>Jurnal Hutan Tropika</strong> adalah jurnal yang memiliki fokus dalam bidang ilmu dan teknologi kehutanan tropika serta semua aspek yang terkait dengan bidang ini. Jurnal ini memiliki <a href="http://u.lipi.go.id/1180427939" target="_blank" rel="noopener">p- ISSN: 1693-7643</a>. Jurnal Hutan Tropika diikelola oleh jurusan Kehutanan, Fakultas Pertanian, Universitas Palangka Raya (Jurnal Hutan Tropika is a journal that focused on <em>science and technology of tropical forestry and also all aspects concerned. This journal has p-ISSN: 1693-7643. <a href="http://u.lipi.go.id/1555383188" target="_blank" rel="noopener">e-ISSN: 2656-9736</a> Journal Hutan Tropika is managed by Forestry Department, Faculty of Agricultural, Universitas Palangka Raya)</em></p> en-US jhtrop@upr.ac.id (Prof. Dr. Ir. Wahyudi, MP.,IPU) rinto.alexandro@fkip.upr.ac.id (Rinto Alexandro) Mon, 01 Jun 2020 00:00:00 +0000 OJS http://blogs.law.harvard.edu/tech/rss 60 PERAN TEGAKAN SENGON DI HUTAN TANAMAN INDUSTRI DALAM MITIGASI PERUBAHAN IKLIM GLOBAL (The Role of Sengon’s Stand at Forest Plantation in Global Climate Change Mitigation) https://e-journal.upr.ac.id/index.php/JHT/article/view/1149 <p>This research aims to estimate the biomass, carbon storage, carbon dioxide uptake and oxygen produced by sengon (Paraserianthes falcataria (L.) Nielsen) stand aged 9, 11 and 13 years in IUPHHK-HTI PT Parwata Rimba, Central Kalimantan. Estimated of biomass, carbon stock, CO2 uptake and Oxygen produced using allometric equations. The results showed that the storage of sengon standing biomass aged 9,11 and 13 years ranged from 110.71 to 200.94 tons/ha, carbon stock ranged from 52.03 to 94.44 tons C/ha, CO2 uptake ranged from 190.79 to 259.13 tons CO2/ha and Oxygen produced around 138.75 to 251.84 tons O2/ha. The total of biomass, carbon stock, CO2 uptake and Oxygen<br />produced by sengon stands at forest plantations are large enough to have an important role in global climate change mitigation in the forestry sector.<br /><br /></p> Ajun Junaedi, Moh Rizal Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1149 Thu, 18 Jun 2020 00:00:00 +0000 KELAS KUAT KAYU TUMIH (Combretocarpus rotundatus (Miq.) Danser) BERDASARKAN BAGIAN BATANG (The the physical and mechanical Properties of Tumih Wood Based on Section Stem) https://e-journal.upr.ac.id/index.php/JHT/article/view/1150 <p>Tumih wood (Combretocarpus rotundatus (Miq.) Danser) is classified as an unknown type of wood which is widely grown in peat swamp forests in Central Kalimantan. This study aims to analyze the physical properties and mechanical properties of wood in axial and radial directions so that they can be utilized properly. The results of the study resulted in fresh water content and dry air content of wood air, each of which was 71,58% and 19,33%, kiln dry weight 0,72, tangential shrinkage 9,68%, radial shrinkage 5,02% and longitudinal shrinkage 0,19%. Testing of mechanical properties resulted in a flexural firmness of 618,33 kg/cm2, compressive strength parallel to the fiber 333,27kg/cm2, shear constancy 92,02 kg/cm2, hardness 355,60 kg/cm2, and stiffness at 19,50kg/cm2. Based on the Indonesian Wood Construction Regulations Standard (PKKI) NI 5-1961 tumih wood is included as a strong class III of Indonesian wood, so it is quite well used for home building raw materials, beams, floor and wall boards, door/window frames, and furniture.<br /><br /></p> Gimson Luhan, Herwin Joni, Johansyah, Yanciluk, Ahmad Mujaffar Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1150 Tue, 02 Jun 2020 00:00:00 +0000 POLA DEGRADASI DAN DEFORESTASI DI KESATUAN HIDROLOGIS GAMBUT (KHG) PROVINSI KALIMANTAN TENGAH TAHUN 2016 - 2017 (Degradation and Deforestation Pattern at the Peat Hydrological Unit (PMU) in Central Kalimantan Province at 2016-2017) https://e-journal.upr.ac.id/index.php/JHT/article/view/1151 <p>Deforestation rates on Kalimantan Island from 1990 to 2014 were recorded at 1.12% (± 0.36 million hectares) each year. Central Kalimantan has a forest decline rate of 1.36%. Land cover changes are important information in the management of forest areas. Changes in land cover are important information in the management of forest areas. This study was carried out throughout the Peat Hydrological Unit (PMU) in Central Kalimantan Province as many as 35 PMU with an area of 4,671,558 Ha. The method used is a quantitative method using ArcGIS 10.1 and Microsoft Excel software for data<br />analysis. The data used are Land Cover Map Data in Central Kalimantan in 2016-2017, City/District Administration Area Map and Central Kalimantan Provincial Spatial Planning Map. The results obtained are Deforestation and Degradation in 2016 - 2017 occurred in 75% of the Peat Hydrological Unit Area in Central Kalimantan, in all spatial patterns in the PMU and in all district / city administrative areas<br /><br /></p> Yusuf Aguswan Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1151 Tue, 02 Jun 2020 00:00:00 +0000 PERTUMBUHAN TANAMAN JELUTUNG RAWA (Diera lowii) DI LAHAN RAWA GAMBUT KABUPATEN PULANG PISAU, KALIMANTAN TENGAH (Growth of Jelutung rawa (Diera lowii) at the Peat Swamp Land in Pulang Pisau District, Cetral Kalimantan) https://e-journal.upr.ac.id/index.php/JHT/article/view/1152 <p>Plantation of jelutung rawa (Diera lowii) project has been conducted by many local peoples, aspecialy at the Pulang Pisau District, Central Kalimantan. The purpose of this research was to analyze the growth of Jelutung rawa (Diera lowii) at the Peat Swamp Land in Pulang Pisau District, Cetral Kalimantan. The research was conducted at Jabiren Village, Pulang Pisau Disttrict, Central Kalimantan start from July to September 2019. Researct result showed that mean annual increment (MAI)-diameters of jelutung rawa at 4, 6, 7, 10, 12 dan 13 years old namely 2.52 cm-2, 2.52 cm-2, 2.80 cm-2, 2.22 cm2 , 2,14 cm-2 and 2,02 cm-2 respectively. Meanwhile, at the same of ages, height of jelutung rawa namely 4.88 m, 6.50 m, 10.84 m, 11.29 m, 16.17 m, and 19.30 m respectively. Polynomial growth model of jelutung rawa for their diameter and height are y = - 3.825941 + 4.1244995x + (-0.140316) x 2 and y = 3.562047 + 0.212857x + 0.72187x2 respectively with coefficient of determination namely 62% and 82% respectively.<br /><br /></p> Wahyudi, Antonius Triyadi Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1152 Tue, 02 Jun 2020 00:00:00 +0000 VALUASI TANAMAN OBAT DI DESA PETUK BUKIT KECAMATAN RAKUMPIT KOTA PALANGKA RAYA, KALIMANTAN TENGAH (Medical Plant Valuation at Petuk Bukit Village, Rakumpit Sub District, Palangka Raya City, Central Kalimantan) https://e-journal.upr.ac.id/index.php/JHT/article/view/1153 <p>The aim of this study to analyze the economic value of medical plants at Petuk Bukit Village, Rakumpit Sub District, Palangka Raya City, Central Kalimantan. This research was conducted from June to August 2019 in the Rakumpit sub-district of Central Kalimantan, precisely in Petuk Bukit village. The primary data were collected using an survey method. Data analyze to predicted the economic value, income levels, and welfare level. The result showed that there are 12 types of medical plants that potentialy have economic value. The income of Petuk Bukit Village from medical plants and nonmedical plants business were obtained Rp. 3.342.420.000/year. The correlation of spearman is 0.45. The income level from medical plants is moderat to the welfare of society.<br /><br /></p> Kartono Aprilianto, sari Mayawati, Nuwa Nuwa Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1153 Tue, 02 Jun 2020 00:00:00 +0000 KARAKTERISTIK ARANG AKTIF AKASIA (ACACIA MANGIUM WILLD) YANG DIAPLIKASIKAN SEBAGAI BAHAN UNTUK MENINGKATKAN KUALITAS AIR https://e-journal.upr.ac.id/index.php/JHT/article/view/1154 <p>The production volume or amount of Acacia wood used is generally low compared to the volume of wood harvested. Not a few woods that are cut cause wood harvesting waste such as branches and twigs. One of the uses is processing the waste into activated charcoal. Activated charcoal is charcoal whose cavities or pores are cleaned from other compounds so that the adsorption power of liquids and gases increases. This research uses the Acacia wood of the stem, branches and twigs which is first through the carbonization process and then used as activated charcoal. The active charcoal tests<br />include yield, moisture content, volatile matter content, ash content, carbon bound content, absorption of benzene, absorption of iodine and absorption of methylene blue. Acacia quality test results of the stem, branches and twigs show that the activated charcoal of the stem has better quality than the active charcoal of branches and twigs. Overall the results of testing the quality of activated charcoal not all treatments meet the requirements of SNI 06-3730-1995, but when compared with the requirements of the quality of pharmaceutical chemistry, all tests for each treatment meet the quality standard requirements. The application of activated charcoal to drilled well water does not all improve water quality but still qualifies the drinking water quality standards Minister of Health Regulation No: 416/Menkes/Per/IX /1990.<br /><br /></p> Elma Wona Purba, Alpian, Yanciluk, Wahyu Supriyati Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1154 Tue, 02 Jun 2020 00:00:00 +0000 PENGGUNAAN MEDIA TANAH PADA PROSES PEWARNAAN ALAMI TERHADAP ROTAN UNTUK KERAJINAN https://e-journal.upr.ac.id/index.php/JHT/article/view/1155 <p>Proses pewarnaan rotan dilakukan dengan menggunakan dua jenis tanah sebagai media perendaman yaitu tanah lempung yang diperoleh dari desa Gohong Kabupaten Kahayan Hilir dan tanah berpasir yang ada di kota Palangka Raya. Pengenalan daun tepanggang sebagai pewarna alami yang aman bagi kesehatan dan lingkungan, mampu memberikan variasi warna yang menarik untuk mengembangkan berbagai motif desain anyaman rotan terutama bagi perajin anyaman rotan yang dijadikan mitra yaitu Duta Dare. Tujuan penulisan ini adalah membandingkan dua jenis tanah yaitu lempung dan pasir sebagai media perendaman rotan yang terlebih dahulu direbus dengan daun tepanggang, sehingga menghasilkan produk yang mampu bersaing dengan berbagai modifikasi tren warna masa kini dengan nilai jual yang tinggi. Metode pelaksanaan melalui penyampaian materi, Tanya jawab, praktek langsung bersama mitra, dan melakukan evaluasi terhadap hasil kegiatan. Pewarnaan rotan direndam dengan tanah lempung menghasilkan warna hitam mengkilap, sedangkan perlakuan dengan tanah pasir menghasilkan rotan dengan warna abu-abu yang tidak menarik.<br />Kata Kunci: Tanah, pewarnaan rotan, anyaman rotan</p> Antonius Triyadi, Prihanika Prihanika; Nuwa Nuwa Copyright (c) 2020 HUTAN TROPIKA https://e-journal.upr.ac.id/index.php/JHT/article/view/1155 Tue, 02 Jun 2020 00:00:00 +0000