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Wahyudi
Contact Email
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Journal Mail Official
wahyudi@for.upr.ac.id
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https://e-journal.upr.ac.id/index.php/JHT/DWR
Location
Kota palangkaraya,
Kalimantan tengah
INDONESIA
Journal Hutan Tropika
ISSN : 16937643     EISSN : 26569736     DOI : https://doi.org/10.36873/jht.v14i1.327
Core Subject : Agriculture,
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)
Articles 169 Documents
KEPADATAN POPULASI DAN JENIS PAKAN KELASI (PRESBYTIS RUBICUNDA MULLER 1838) DI KAWASAN ARBORETUM NYARU MENTENG, PALANGKA RAYA : FOUAD FAUZI, RENI RAHMAWATI, PENYANG JHT, Admin
HUTAN TROPIKA Vol. 22 No. 01 (2017): Jurnal Hutan Tropika Vol.XX No.01, Juni 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACK Nyaru Menteng arboretum is the genetics resources area that located at the Palangka Raya District, its wide namely 65.2 ha. In this area, there are many flora and fauna, including kelasi (Presbytis rubicunda), a species in danger that protected by law. At the Nyaru Menteng arboretum area, there are also the Re- introduction of Orang Utan Centre that managed by BOS. This research was aimed to know the kelasi population at the Nyaru Menteng arboretum area and to record some herbs and plants to be their foods. The research was conducted at the Nyaru Menteng arboretum area at 2017 using survey method to calculate the population of kelasi number and wide of their habitat. Research result showed that there one kelasi at January 2017 at three kelasi at April 2017 namely kelasi of male, female and young. Analysis result showed that the density of kelasi was 0.06 species ha-1. There is decrement kelasi at 2017 than 2007. Ten years ago, kelasi was detectabled namely 15 species with the density was 0.23 species ha-1. Some herbs and plants which to be food of kelasi i.e. jambuan (Syzgium cerinum), saga (Adenathera microsperma), singkong (Manihot utilisima), karet (Havea brasiliensis), nenas (Ananas comosus), kelakai (Stenochlaena ralustris), buah nangka (Artocarpus integra) and other fruits. Keywords: Density, food, kelasi, population
PENGARUH PUPUK ORGANIK CAIR PADA PERTUMBUHAN SEMAI JELUTUNG RAWA (DYERA POLYPHYLLA MIQ. STEENIS) (EFFECT OF APPLYING THE LIQUID ORGANIC FERTILIZER ON THE GROWTH OF DYERA POLYPHYLLA MIQ. STEENIS SEEDLING) : YUDHA, CHRISTOPHEROS, LIJAN VOLEXIUS GINTING JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT The aims of this study were to determine the effects of the use of liquid organic fertilizer on the growth of jelutung rawa (Dyera polyphylla Miq. Steenis ) seedling using five different treatments, namely treatment 1 (as control), treatment 2 (10 ml), treatment 3 (20 ml), treatment 4 (30 ml) , and treatment 5 (40 ml). This research used Completely Randomized Design (RAL) analysis with observation variables on hight, number of leaf, and diameter rates. Each treatment used 5 seedlings and 3 replications. This research was conducted at the nursery in Department of Forest, Palangka Raya University, and the period was from August 25 to November 3, 2017. The results showed that the treatments had only significant effect on the rate of leaf number but no significant effect to height and diameter rate, statistically, it was obtained that the best leaf number rate was the treatment 3 (three) with dose of 20 ml, i.e 7.6 leaf in average. Keywords: Liquid organic fertilizer, growth, Dyera polyphylla Miq. Steenis
KEANEKARAGAMAN JENIS TUMBUHAN OBAT DI TAMAN NASIONAL SEBANGAU (BIODIVERSITY OF MEDICINAL PLANTS AT THE SEBANGAU NATIONAL PARK) : CHRISTOPHEROS1, YUSINTHA TANDUH1, ANDRICO BUDI SAPUTRA PANJAITAN2 JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT Medicinal plants were used as medicine and traditional treatment since thousand years ago in Indonesia. Indonesia itself has more than 1000 species of plants which were used as raw material to produce natural medicinal plants by Industry of traditional medicine. When the number of population increased further, it was expected that use of medicinal plants supported medical treatment. The diversity of plants in Indonesia was one of natural wealth which need to be preserved since their role and benefits could bring advantages for society in form of treatment and health care. Sebangau National Park was object to study of medicinal plants. This study was aimed to find out the diversity of medicinal plants species from level of seedling, sapling, poles and tree at around Tumbang Bulan, Teluk Beruang River, and Sebangau National Park in Katingan Regency, Central Kalimantan Province. The determination of sample plot was conducted using purposive sampling in areas of 2 ha. The observation was conducted in two lines. Every growth level of underground plant, seedling, sapling, poles and tree was made within 50 sub sample plots, afterward the data was collected and analyzed to find out Important Value Index (IVI), Species Diversity Index (H?), Species Richness Index (R), and Homogenous Index (E). Research result showed that there are 13 species medicinal plants that founded in research location, i.e. asam-asam, akar kuning, akar kalalawit, belawan merah, gemor, jinjit, kapur naga, kantong semar, kemuning, keripak, mangkinang tikus, meranti and terentang. Each growth level was dominated by jinjit. Value of species diversity index (H?) for level of seedling was 1.98, meanwhile the values of sapling, poles and tree were about 2.05 to 2.24 which included in moderate category. Value of species richness index (R) was dominated by growth level of seedling namely 1.68, meanwhile at the growth level of sapling, pole and tree were 1.54, 1.56, and 1.59 respectively. Value of homogenous index (E) for all growth levels were in high category, namely within range 0.80 to 0.97. Keywords: Important value index, purposive sampling species diversity
IDENTIFIKASI JENIS POHON SARANG DAN PAKAN ORANGUTAN (PONGO PYGMAEUS) DI ARBORETUM NYARU MENTENG, PALANGKA RAYA (IDENTIFICATION OF TREES AS NEST AND FOOD OF ORANGUTAN (PONGO PYGMAEUS) AT THE ARBORETUM OF NYARU MENTENG, PALANGKA RAYA) : FOUAD FAUZI1,2, PENYANG1,2, NISFIATUL HIDAYAT1 JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT This research was aimed to know some trees that used to nest and food of orang utan (Pongo pygmaeus) at the arboretum of Nyaru Menteng in Palangka Raya City. Analysis of vegetation using Point Centered Quarter Method with 23 sample points at the field. Collected data at the August 2017 were founded 25 species of trees, from16 family, whereas 17 trees were used as nest and food and 8 trees were used as nest only. The distance between each tree to measuring point was 3,71 m. Density of the trees namely 726 trees ha-1, with domination namely 28.37, frequency namely 3.48. The important value index of hangkang (Palaquium leiocarpum) was highest, namely 51.91%. Summed dominance ratio namely 17.3 %. Diversity index was moderate with value namely 2.81. Evenness index was high with value namely 0.87. Keywords: Food, nest, Nyaru Menteng, Pongo pygmaeus
PERBANDINGAN HASIL GETAH ANTARA JELUTUNG KAPUR (DYERA LOWII HOOK.F) DAN JELUTUNG SANAMAN (DYERA COSTULATA) DI HUTAN RAWA GAMBUT KALAMPANGAN (COMPARISON THE LATEX YIELDS BETWEEN JELUTUNG KAPUR (DYERA LOWII HOOK.F) AND JELUTUNG SANAMAN (DYERA COSTULATA): LIES INDRAYANTI AND NURSIAH JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT Jelutung kapur (Dyera lowii Hock) and jelutung sanaman (Dyera costulata) are species that grow well at the peat swamp forest in Canal of Taruna, Kalampangan, Palangka Raya City. Aim of this research was to compare the latex yield between jelutung kapur (Dyera lowii Hock) and jelutung sanaman (Dyera costulata) at the peat swamp forest in Kalampangan. The research was done using factorial design with two factors, i.e. peat thickness (4 m and 5 m) and diameter class of the trees. Variables of the research were diameter (dbh) and height of 24 jelutung kapur and 18 jelutung sanaman. Data were collected each month as long as 11 months with considering the weather condition, i.e. precipitation and temperature. Research result show that there is irreversibility between precipitation vs temperature to latex yield. The more of precipitation so the higher of temperature that cause the reduction of latex yield. According BNT test, the highest latex yield is gotten from jelutung kapur with diameter class of >24 cm that grow at the site with the thickness of 4 m, meanwhile the lowest latex yield is gotten from jelutung sanaman with diameter class of < 24 cm that grow at the site with the thickness of 5 m. Average latex yield of jelutung kapur is 363,63 ml/extract/tree/month. Keywords: Diameter class, latex yield, peat thickness, precipitation, temperature.
EFEKTIVITAS MICROCIDE 100/100 EC TERHADAP SERANGAN JAMUR BIRU PADA KAYU KARET (HEVEA BRASILIENSIS MUELL.ARG.) (EFFECTIVENESS OF MICROCIDE 100/100 EC TO RESTRAIN BLUE MUSHROOM ATTACK ON THE RUBBER WOOD (HEVEA BRASILIENSIS MUELL.ARG.): GIMSON LUHAN, M. DAMIRI, JOHN F. GUSTAF DAN MARTHINUS LAMBUNG JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT The objectives of this research are to know the value of adsorption and the influence of microcide using dyeing method against the intensity of blue mushroom attack on the rubber wood (Hevea brasiliensis Muell.Arg.) in the axial direction, the base (P), the middle (T) and the end (U). The expected benefit is to be an input in finding alternative use of preservative composition that is able to suppress the growth rate of blue mushroom so as to improve the quality of rubber wood usage. The results showed that the value of microcide preservative adsorption on wood has a tendency of increasing value with increasing concentration of microcide preservative and largest in the concentration of 1% Microcide preservative by 2.11 g/cm2. The calculation result of the intensity of blue mushroom attack on rubber wood at Microcide concentration of 1% is 5,53% including the classification is not meaningful, so it is effective to prevent blue fungus attack. The result of the measurement of the decrease of the rubber wood water content per week has a tendency of decreasing value from week I to week V. The decrease of the water content of timber that occurs almost uniformly for each level of Microcide concentration per week, so that in week V the water content of wood ranges from 18% - 19, 73%. The fresh water content of rubber wood used in this research ranged 61.34% - 84.67%, with the condition of the water content allows the fungal attack on rubber wood. The intensity of blue mushroom attack between week I - IV at moisture content between 69,16% - 27,50% shows optimum blue fungus growth, while under condition of fiber saturation point entering week V (18,86%) mushroom growth value is very small. Further research on the preservation of rubber wood by dipping method using Microcide EC preservative on wood resistance to other types of fungi. Keywords: Adsorption value, attack intensity, microcide, rubber wood.
PENGEMBANGAN KAWASAN AIR TERJUN BATU MAHASUR SEBAGAI EKOWISATA UNGGULAN DI KABUPATEN GUNUNG MAS (DEVELOPING WATERFALL OF BATU MAHASUR AS ECOTOURISM AT THE GUNUNG MAS REGENCY) : I NYOMAN SURASANA1, ROSDIANA1, YETRI 2 JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT Batu Mahasur waterfall area is a tourist attraction in Gunung Mas Regency, which had been utilized by the community as a place for bathing and recreation relish the waterfall environment. The management of the area has not managed well so have not been able to bring a large number of tourists, especially tourists from outside the region. The research was conducted to find out the response of the community regarding the development of Batu Mahasur waterfall area became the flagship of ecotourism object in Gunung Mas Regency. Data were collected through direct interviews with the publics (respondents) that guided by questionnaire and field survey to the waterfall area. Data analysis using Guttman scale. The results showed that community support in the development of Batu Mahasur Waterfall area became the flagship of ecotourism object in Gunung MasRegency with reaching value namely 84%. Keywords: Batu Mahasur waterfall, ecotourism, Guttman scale.
KERAGAMAN FLORISTIK DAN STATUS KETERANCAMAN KEPUNAHAN JENIS TUMBUHAN DI KAWASAN AIR TERJUN BUNBUN KABUPATEN MURUNG RAYA (FLORISTIC DIVERSITY AND EXTINCTION THREAT STATUS OF PLANTS AT THE BUNBUN WATERFALL REGION, MURUNG RAYA REGENCY) : SETIARNO JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT This research is concerning the floristic diversity and status of extinction threat of class of plants at the Bunbun Waterfall region, Uut Murung sub Regency, Murung Raya Regency, Central Kalimantan Province. The purpose of this research was intended to find out the composition, diversity, and threat status of plants based on Government Regulation (PP) Nomor 7/1999 about Indonesia Scarce Plants and IUCN Global Red List. The research was using combination between the way of path and the way of blocked path. The research result showed that there are 42 kinds of trees, whereas six of which are assigned into critically endangered category of IUCN, like as gaharu (Aquilaria beccariana), keruing (Dipterocarpus cornutus), meranti kuning (Shorea macroptera), meranti merah (Shorea leprosula), meranti putih (Shorea lamellata) and ulin (Eusideroxylon zwageri). Shorea macroptera is assigned into endangered category, meanwhile Eusideroxylon zwageri and Aquilaria beccariana are assigned into vulnerable category based on IUCN. Shorea leprosula is a class which has the greatest essential value in whole growth stage, whereas Eugenia europholia, Shorea uliginosa and Shorea leprosula are dominant classes at each stage of growth. The index of tree diversity is classified into moderate category. Keywords: Floristic diversity, extinction threat status of plants, IUCN.
MANGROVE FOREST IN KUDAT, SABAH MALAYSIA: CHALLENGES OF THE MANGROVE CONSERVATION (HUTAN MANGROVE DI KUDAT, SABAH, MALAYSIA: TANTANGAN DALAM KONSERVASI MANGROVE) : ANDY R. MOJIOL¹, MUSRI ISMENYAH¹, WALTER J. LINTANGAH¹, BACHO PENDRONGI¹ AND WAHYUDI² JHT, Admin
HUTAN TROPIKA Vol. 22 No. 02 (2017): Jurnal Hutan Tropika Vol.XX No.02, Desember 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACT Kudat is located in the North part of the island of Borneo, with land area of 1,287.2 km2 or 130,787 ha. Out of the overall total area, 25% or 33,307 ha of area are gazetted under Forest Reserve. Most of the Kudat coastline area is patches of mangrove forest. A total of 19,507 hectares of the total mangroves in the Kudat district have been gazetted as permanent forest reserve under class-V Mangrove Forest Reserve. Mangroves play many important functions such as physical protection to the coastline, important breeding ground of marine life and nurseries, source of socio-economy activity to the local people, natural habitat for the living organisms, home to wide range of flora and fauna. Another function is they provide opportunities for the development for eco-tourism. Some locations in Kudat, which are of high potential for tourism development, are Kg. Sikuati, Simpang Mangayau, Sg. Ranggu, Pulau Banggi, Pulau Malawali and Pulau Balembangan. In 2005, about 2,440 ha or 0.8% of the Mangrove forest reserve in Sabah has been lost mainly due to land conversion for people?s settlement. As for Kudat, exploited area recorded are as follow; settlement/urban development (500 ha), aquaculture (15 ha), agriculture and infrastructure (13 ha) - power supply way leave, pipeline, and common tower. Illegal squatters involved about 2 ha and land use conflict of mangrove forest reserve in Kudat were lost to agricultural conversion due to uncoordinated and technical discrepancies of boundaries on the ground. Some challenges in mangrove conservation are, currently there is no management plan prepared for the management of mangroves in Kudat. The management of mangrove area thus far is focusing on protecting the gazetted area under permanent forest reserve under Class V ? mangrove forest, gradually by the forest district. Apart from mangroves in PFR, there are also some scattered Stateland mangroves which are not quantified, monitored and protected under any legislation. Considering their locations, roles and functions, steps must be taken to gazette existing mangroves inside estuaries and lagoons as Permanent Forest Reserve (PFR). The apparent of boundaries between state land and Mangrove Forest on the ground are vital to be carried out by the authority. Important effort to better manage the Kudat mangroves is carrying out nourishment and planting activities in existing mangroves. Other challenges are to involve the local communities to conserve mangroves areas, especially thus living nearby the mangrove forest. This paper highlights the status of mangrove, to emphasize the important function of mangrove, and to distinguish the threat and challenge of mangrove conservation in Kudat district. Keywords: Mangrove forest, status and function, threat and challenges, conservation, Kudat.
KARAKTERISTIK DAN ANALISIS FITOKIMIA TUMBUHAN OBAT DARI DESA NATAI SEDAWAK KABUPATEN SUKAMARA KALIMANTAN TENGAH : MILAD MADIYAWATI, FOUAD FAUJI, I NYOMAN SURASANA JHT, Admin
HUTAN TROPIKA Vol. 22 No. 01 (2017): Jurnal Hutan Tropika Vol.XX No.01, Juni 2017
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

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Abstract

ABSTRACK Patterns of community life tend to back to nature including the drugs utilization. They generally use medicinal plants (roots, stems, leaves, flowers, fruits and seeds) without knowing its active chemical compounds and partly morphologically unfamiliar also. This research was conducted to identify the characteristics of medicinal plants (general, environment, habitat and morphology of medicinal plants) through observation in the field and to know the content of active compounds (secondary metabolites) prosfective medicinal plants that be used by the community of Natai Sedawak Village by doing phytochemical testing in laboratory. Data analysis is done descriptively qualitative and quantitative in the form of tabulation and picture. The results of observation showed that the characteristics of medicinal plants in Natai Sedawak village are tree, shrub, herb (terna) and liana, with single and compound leaf composition, cylindrical trunks except tapus and Loranthus sp. They grow in swamp forest with altitude namely 17 to 25 meters above sea level and soil pH between 2.60 to 3.85. Based on the results of phytochemical analysis, medicinal plants contained secondary metabolite compounds that consisting tannin (polifenol), alkaloid, saponin, flavonoids, steroids and terpenoids that scattered in plant organs as at the roots, stems, leaves, and fruit. Keywords : Drug growth, phytochemical analysis, Natai Sedawak Village.

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