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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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Chelnavia, Bambang Juniarto, Stefanus Sius Lara: TINGKAT PERUBAHAN STRUKTUR DAN KOMPOSISI VEGETASI HUTAN AKIBAT PEMANENAN DI PT. BINA MULTI ALAM LESTARI PROVINSI KALIMANTAN TENGAH (The Structure and Composition of Vegetations in the Logged Over Forest with Selective Cutting and Strips Planting Silvicultural System in PT Bina Multi Alam Lestari, Central Kalimantan Province)
Jurnal Hutan Tropika Vol. 16 No. 1 (): Vol. 16 No.1 / Juni 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i1.2971

Abstract

The Indonesian Selective Cutting and Planting Silvicultural System (ISCP) has beenapplied to manage natural production forests since 1989. This system was revised in1993 and 2009. This study aims to determine the condition of natural forests afterlogging at PT Bina Multi Alam Lestari, Central Kalimantan Province. The study wasconducted using the plotted plot method proportionally in P-8 Block of RKTUPHHKHA at 2021. The results showed that the structure and composition of the vegetation inthe forest after being harvested using the TPTI silvicultural system at PT Bina MultiAlam Lestari was still well maintained. The meranti tree group dominated the tree levelbefore and after harvesting with INPs of 141 and 135.56, respectively, as well as for thepole level with INPs of 108.56 and 106.33, respectively. Meanwhile, at the seedling andsapling levels, other commercial groups (non dipterocarps) were dominated. Speciesdiversity are high with a range of values of H' 3.1 to 3.3 and species richness rangedfrom moderate to high with a range of values from 3.94 to 6.68. The level of vegetationdensity is still well maintained and is above the standards set by the Ministry ofEnvironment and Forestry. The distribution of vegetation diameter in the forest beforeand after harvesting still resembles the condition of mixed natural forest (unaged standforest) with an inverted J pattern. Natural forest harvesting activities using the TPTIsilvicultural system at PT Bina Multi Alam Lestari in the RKTUPHHK-HA Block in2021 did not cause significant damage and environmental conditions are still wellmaintained.Keywords: Natural forest, Important Value Index, diversity, richness, density
Pebri Leonardo Tampubolon1* , Nuwa2 , Desy Natalia Koroh2 , Herwin Joni2 dan Yosep2: ANALISIS BIAYA PEMANFAATAN LIMBAH INDUSTRI MEBEL DI TIO ART COLLECTION KOTA PALANGKA RAYA (Cost Analysis of Utilization of Furniture Industry Waste at Tio Art Collection, Palangka Raya City) JHT, Admin
Jurnal Hutan Tropika Vol. 16 No. 1 (): Vol. 16 No.1 / Juni 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i1.2973

Abstract

This study aims to determine the total income, production costs, absolute profit, andbreak-even point from the business of utilizing wood waste, through analysis of RevenueCost Ratio (RCR) analysis at Tio Art Collection, Palangka Raya City in 2019. Theanalysis uses a quantitative descriptive method. The results of this study indicate that thewood waste used in Tio Art Collection is ironwood waste (Eusideroxylon zwageri T et B)and balangeran wood waste (Shorea laevis Ridl.). Tio Art Collection's wood craft businessis economically viable because it has an R/C ratio of 1.73.Keywords: Wood waste, R/C ratio, cost and income.
Cimi Trilia1* , Eritha K. Firdara2 dan Reri Yulianti2: IDENTIFIKASI JENIS HAMA DAN PENYAKIT TANAMAN MERANTI MERAH (Shorea leprosula Miq) DI AREAL KEBUN BENIH SEMAI UNIVERSITAS PALANGKA RAYA (Identification of Pest and Disease of Red Meranti (Shorea leprosula Mig) in the Seed Garden, Palangka Raya University) JHT, Admin
Jurnal Hutan Tropika Vol. 16 No. 1 (): Vol. 16 No.1 / Juni 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i1.2974

Abstract

Seed gardens are one way to obtain quality seeds. Seed gardens are areas where certainplants are planted to produce seeds of superior genetic origin. The seed garden of TheUniversity of Palangkaraya in maintaining red meranti (Shorea leprosula Miq) plantsencountered several obstacles, one of which was pests and diseases. Identification of pestand disease attacks is basically the beginning to find out a plant needs special care orattention to improve the quality of the plant itself. This study aims to identify anddetermine the intensity of pest and disease attacks on red meranti (Shorea leprosula Miq)in the seed garden area of The University of Palangka Raya. Collecting data using thecircle plot method, a systematic random sampling technique. Based on the research, it wasfound that the types of pests and diseases that attack red meranti are fire caterpillar(Setothosea asigna), beetle (Mecynorrhina sp), leaf spot (Curvularia sp and Nigrosporasp). The frequency of pest attack is 7.52% and the intensity of attack is 0.75%, with acombination frequency of 1.50% and an attack intensity of 0.45%.Keywords: identification, pests, diseases, seed garden
Willingness to Pay For Mangroves Conservation By The Local Communities in Salut Mengkabong Lagoon, Tuaran Sabah Andy R Mojiol; Kuan Yen Hong; Ejria Saleh
HUTAN TROPIKA Vol 14 No 1 (2019): Volume 14 Nomor 1 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v14i1.310

Abstract

This research aimed to investigate the Willingness to Pay (WTP) for mangrove conservation of local communities at Salut Mengkabong Lagoon, Tuaran based on the amount of fees imposed on them. The content is based on questionnaire survey provided to local communities from Mangrove Forest Produce (MFP) to their perception in conservation programme. The survey was conducted with a priod of 7 month started from September 2016 until March 2017. Contingent Valuation Method (CVM) was used to calculate the Willingness to Pay (WTP) whereby 100 respondents were asked to complete the questionnaire. From the analysis, it showed that the WTP of local communities were affected by their monthly income. Regression model analysis with WTP = -0.087* (monthly income) + 1.789 has been formed. Whereas, the value of mangrove forest produce (MFP) in Salut Mengkabong Lagoon has been calculated with atotal of RM728 for the direct product while for the non-direct products such as crab, bivalves, seashells and fishes cost about RM721 to RM2472 in a year. The study documented mangrove forest contribution to local communities in Salut Mengkabong Lagoon such as timber; Rhizophora mucronata and Avicennia spp, Seafood; Scylla serrata, Geloina coaxans, various type of fishes and seashell. From the result, it was hope that this study can promote a win-win situation to both local community and stakeholders to come out with an effective supervision to ensure the long-lasting dependency of local communities to the mangrove forests without undermining their socio-economic wellbeing.
STRUCTURE AND COMPOSITION OF FLORAL AT MANGROVE FOREST IN PITAS SABAH MALAYSIA: Struktur dan Komposisi Bunga pada Hutan Mangrove di Pitas Sabah Malaysia Andy R. Mojiol; Audrey Eliseus; Wahyudi Wahyudi
HUTAN TROPIKA Vol 15 No 1 (2020): Volume 15 Nomor 1 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i1.1709

Abstract

The aim of the study was to determined and record mangrove species composition anddiversity at Pitas mangrove forest, Sabah. Mangroves forest occurs in waterlogged, saltysoils of sheltered tropical and subtropical shores. It usually found along the coastlinesthroughout the world, usually between 25º N longitude and 25º S latitude. This study wasconducted in Pitas district (N 06?43’, E 117?4’) which is located at the northern tip ofSabah, Malaysia. Whereas, Pitas district has an approximately 38,564 ha of the mangrovearea. In this study, the mangrove location covered an area ranges from Malawali island(N 07?2.023', E 117?16.883'), Tobo island (N 07?01.070', E 117?19.008'), Layak-layakisland (N 06?56.587', E 117?14.323'), Mapan-mapan (N 06?51.608', E 117?14.861'), andJambongan island (N 06?45.016', E 117?25.816'). The random sampling method wasdone with simple plots sizes of 20m x 20m to determine the species’ biodiversity,composition and structure. As a result, 13 mangrove species have been identified in allstudy locations namely known as Sonneratia caseolaris, Ceriops tagal, Bruguieragymnorhiza, Rhizophora mucronata, Aegiceras corniculatum, Avicennia marina,Rhizophora apiculata, Sonneratia alba, Bruguiera cylindrica, Lumnitzera littorea,Pemphis acidula, Scyphiphora hydrophyllacea, and Scaevola taccada. The result showsthat the Shannon –Wiener biodiversity index (H’) at the island and disturbed mangroveareas is less diverse (H’ below than 1.5) compared to the undisturbed mainland areaswith (H’=1.95). Sonneratia caseolaris is the dominant mangrove species in the islandwith the highest value of Important Value Index (IVI) with 144.77% compared to allspecies in the study location. These areas show the importance of ecological aspectswithin the forest ecosystem. Therefore, the protection and conservation of this mangrovein this area is a necessity.Keywords: Mangrove, species composition, diversity, Important Value Index (IVI),island, mainland, disturbed, Pitas Sabah
KERAGAMAN FUNGI MIKORIZA ARBUSKULA (FMA) DI LAHAN GAMBUT KONVERSI HUTAN ALAM MENJADI PERKEBUNAN KELAPA SAWIT: Diversity of Arbuscular Mycorrhizal Fungi (FMA) in Peatland Conversion Forest Nature Become A Palm Oil Plantation Reni Rahmawati; Patricia E Putir; M. Damiri; Yusinta Tanduh; Nursiah
HUTAN TROPIKA Vol 15 No 1 (2020): Volume 15 Nomor 1 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i1.1710

Abstract

Tujuan penelitian ini adalah untuk mengetahui keragaman Fungi Mikoriza Arbuskula(FMA) lahan gambut konversi hutan alam menjadi perkebunan kelapa sawit diKotawaringin Timur. Penelitian dilaksanakan pada 4 (empat) lokasi di KabupatenKotawaringin Timur, yakni: (1) Hutan rawa gambut alami di Kecamatan Kota Besi (2)Lahan gambut untuk perkebunan kelapa sawit umur tanam kurang dari 4 tahun diKecamatan Parenggean; (3) Lahan gambut perkebunan kelapa sawit umur tanam 4-10tahun di Kecamatan Cempaga; dan (4) Lahan gambut perkebunan kelapa sawit umurtanam di atas 10 tahun di Kecamatan Mentawa Baru Ketapang. Pembuatan petakpengamatan ukuran 20 m x 20 m dibuat pada setiap lokasi sesuai metode ICRAF.Pengambilan sampel tanah dan akar secara komposit 5 (lima) titik pengambilan sampeltanah pada kedalaman 20 cm di masing-masing lokasi sekaligus sebagai ulangan. Berattanah sampel setiap titik sebanyak 500 gr, sehingga total sampel tanah tiap petakpengamatan adalah 2.500 gr. Sampel tanah tiap titik dalamsatu petak dicampur dalamsatu tempat hingga homogen untuk mewakili satu petak amatan, selanjutnya diambil 100g per titik. Analisis data dilakukan dengan metode deskriptif dan dibantu gambar, grafik,dan tabel. Hasil penelitian menunjukkan struktur infeksi yang membentuk struktur FMAberupa hifa dan vesikel, sedangkan struktur FMA berupa arbuskula tidak dijumpai.Kepadatan spora (100 g tanah gambut) tertinggi terjadi pada lahan gambut untukperkebunan kelapa sawit dengan usia tanam kurang dari 4 tahun (320,40), kelapa sawitusia antara 4-10 tahun (276,20), dan disusul tanaman kelapasawit usia di atas 10 tahun(211,20). Kepadatan spora terendah pada hutan gambut alami (152,20). Hasil identifikasispora FMA menemukan 12 (dua belas) spesies spora FMA genus Glomus sp. SporaFMA genus Glomus sp merupakan satu-satunya jenis spora FMA, baik pada hutangambut alami maupun lahan gambut untuk perkebunan kelapa sawit dengan berbagaiusia tanam. Rata-rata kelimpahan Spora FMA Genus Glomus sp (100 g tanah gambut)tertinggi pada lahan gambut untuk perkebunan kelapa sawit usia tanam kurang 4 tahun(112,80), disusul kelapa sawit usia tanam antara 4-10 tahun (104,10), dan hutan gambutalami (64,20). Rata-rata terendah pada lahan gambut untuk perkebunan kelapa sawit usiatanam di atas 10 tahun (47,40). Rata-rata kelimpahan relatif Spora FMA Genus Glomus sp (100 g tanah gambut) tertinggi pada hutan gambut alami (42,64%), kemudian lahan gambut untuk perkebunan kelapa sawit usia tanam antara 4-10 tahun (37,69%), kelapa sawit usia tanam kurang 4 tahun (35,34%). Rata-rata terendah pada lahan gambut untukperkebunan kelapa sawit usia tanam di atas 10 tahun (22,48%).Kata kunci : mikoriza, lahan gambut, kelapa sawit, identifikasi, struktur, kelimpahan
TREND SUBSEKTOR KEHUTANAN TERHADAP PDRB, KESEMPATAN KERJA DAN EKSPOR PULANG PISAU PROVINSI KALIMANTAN TENGAH: Trends of The Forestry Subsector on GRDP, Employment Opportunities and Exports of Pulang Pisau District Kalimantan Tengah Province Putra Agustinus Simarmata; Jumri Dulamin; M. Damiri
HUTAN TROPIKA Vol 15 No 1 (2020): Volume 15 Nomor 1 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i1.1711

Abstract

This study is to analyze the magnitude of forestry subsector trends on the economy,especially on Gross Regional Domestic Revenue, Job Opportunities and Pulang PisauTotal Value. This study uses secondary data and is analyzed by Straight Line Equations.Research results obtained: 1. The contribution of the forestry sub-sector to the PulangPisau Regency economy began to decline in 2010-2018. Where the highest contributionwas in 2010 which was 2.27% with a value of Rp 43,927.30 while the lowest contributionvalue was in 2018 which was 1,44% with a value of Rp 70.494,50 with an averagegrowth of -5.45%. 2. The participation rate of Pulang Pisau Regency's employmentopportunities from 2010-2018 tends to decrease. For the highest contribution, there were73,12% in 2010, while the lowest contribution was in 2017 with a value of 46% with anaverage growth of 4,78%. 3. The Total Value of Forestry Subsector Exports in 2015-2019 increased from year to year from the analysis of the total value of total forestryexports in 2015-2019, the highest value was in 2018, namely USD 6,473,834.63 whilethe lowest was in 2015, which was USD 58,679 60Keywords: Gross Regional Domestic Revenue, Labor, Total Export Value
KUALITAS KAYU KAWUI (Vernonia arborea) YANG TUMBUH DI HUTAN GAMBUT: Quality of Kawui Wood (Vernonia Arborea) Growing in Peatland Forest Grace Siska; Lies Indrayanti
HUTAN TROPIKA Vol 15 No 1 (2020): Volume 15 Nomor 1 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i1.1712

Abstract

Kayu kawui adalah salah satu lesser known species yang belum banyak diketahui sifat-sifatkayunya. Tujuan penelitian ini adalah untuk mengetahui sifat fisika dan mekanika kayukawui. Bahan penelitian dua pohon kawui berdiameter 28,34 cm dan 34,74 cm diambil darihutan alam. Bahan dipotong menjadi tiga bagian yaitu pangkal, tengah dan ujung,pengujian mengikuti standar DIN. Penelitian menggunakan Rancangan Acak Lengkapdengan satu faktor yaitu letak pada batang dengan tiga aras yaitu pangkal-tengah dan ujung,seluruhnya dilakukan tiga ulangan. Hasil penelitian kadar air basah dan kering udara pohonkesatu lebih besar dari pohon kedua. Berat jenis kering udara dan kering tanur keduanyasama besar. Modulus elastis, modulus patah, keteguhan geser sejajar serat, keteguhan tekansejajar serat, keteguhan pukul pohon kesatu lebih kecil dari pohon kedua. Kekerasanterendah sampai tertinggi adalah pada bidang tangensial, bidang radial dan bidangtransversal. Perlakuan arah aksial kadar air dan berat jenis tidak berpengaruh nyata, ujiketeguhan geser sejajar serat, kekerasan bidang tangensial, radial serta keteguhan lengkungstatis berpengaruh nyata. Hasil uji Beda Nyata Jujur perlakuan terbaik untuk keteguhangeser sejajar serat pada bagian tengah, kekerasan bidang radial pada pangkal, kekerasanbidang tangensial dan keteguhan lengkung statis pada bagian ujung. Berat Jenis kayu kawuimasuk kelas kuat III, MoE masuk dalam kelas kuat II-IV, MoR dan keteguhan tekan sejajarserat masuk kelas kuat II. Kayu kawui cocok untuk penggunaan bahan bangunan, plywood,meubel, lantai, dinding, bantalan, kusen-kusen dan kapal.Kata kunci: Kawui, sifat fisika, sifat mekanika, kelas kuat II dan III.
DISTRIBUSI DIAMETER TANAMAN SENGON (Paraserianthes falcataria) SEBAGAI INDIKATOR PERTUMBUHAN NORMAL: Sengon Plant Diameter Distribution (Paraserianthes falcataria) as Normal Growth Indicators Bela Safitri; Wahyudi Wahyudi; Christopheros
HUTAN TROPIKA Vol 15 No 1 (2020): Volume 15 Nomor 1 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i1.1713

Abstract

Sengon (Paraserianthes falcataria (L) Nielsen) is one of some exotic plants, so that it issuitable for planting on mounds of peat-swamp land in support of revegetation andreforestation, and also to develop plantation forest. This plant have the short rotation,high economic and ecologically value. The aims of research was to know the diameterdistribution of sengon to detect normal growth as well as they were planted on themounds of peat-swamp land and on the traditionaly peat swamp land that floodingperiodically. Data were analized using polynomial equations to form the distributiongraphs. Based on result, at the 4.5 years old of sengon planted on the the mounds ofpeat-swamp land and on the traditionaly peat swamp land indicated the normal graph andabnormal graph respectively. Sengon that planted on the mounds of peat swamp landformed the polynomial equation Y= -35,4 + 47,043X – 6,7857 X2 with coefficient ofdetermination (R2) namely 90.41%, meanwhile Sengon that planted on the traditionalypeat swamp land formed the polynomial equation Y= -10 + 53,643X – 17,571 X2+ 1,5X3 with coefficient of determination (R2) namely (R2) namely 85.99%. Therefore,sengon that planted on the mounds of peat swamp land growth better than sengon thatplanted on the traditionaly of peat swamp landKeywords: Growth, polynomial, sengon, peat swamp land
UJI KESEHATAN BENIH KENANGA YLANG-YLANG: Cananga odorata Lam. Hook.f. & Thomson) forma genuina (Health test of Kenaga Ylang-Ylang Seed (Cananga odorata Lam. Hook.f. & Thomson) forma genuina) Yunik Istikorini; Arum Sekar Wulandari; Wahyu Krisna
HUTAN TROPIKA Vol 15 No 2 (2020): Volume 15 Nomor 2 Tahun 2020
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v15i2.2159

Abstract

Ylang-ylang (Cananga odorata Hook.F.& Thomson) is one of the defense plants with various benefits and advantages. One of the hallenges in ylang-ylang Cananga cultivation is the contribution of high-quality seed. The study aimed to determine the health of seeds and identify fungi carried by ylang-ylang seeds. The seed health test used an incubation method on potato dextrose agar (PDA) media. Results showed that ylangylang seeds associated with five fungal for 11 months of age and newly harvested seedswere the same fungal. Those isolated fungal were Aspergillus niger, A. flavus, Penicillium sp., Botryodiplodia sp. and Paecilomyces sp. The fungus A. niger is the dominant fungus. Fungi Paecilomyces sp. and Botryodiplodia sp. The fungus A. niger identified most frequently. Fungi Paecilomyces sp. and Botryodiplodia sp. had a fast growth rate, whereas Penicillium sp. had slower growth compared with other isolates. Keywords: Fungus, seed health, ylang-ylang seeds

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