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Peronema Forestry Science Journal
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 25 Documents
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Search results for , issue "Vol 2, No 1 (2013): Peronema Forestry Science Journal" : 25 Documents clear
Pengawetan Kayu Karet (Hevea braziliensis MUELL Arg) Menggunakan Asam Borat (H3BO3) Dengan Metode Pengawetan Rendaman Panas Dingin Preserving of Rubber Wood (Hevea braziliensis MUELL Arg) Using Boric Acid (H3BO3) With Cold and Hot Soaking Preservation Nadya Putri; Evalina Herawati; Ridwanti Batubara
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The objectives of this research were to calculate the amount of retention and penetration scores and to examine the stability of dimension and strength of rubber wood after conserving with boric acid preservative (H3BO3). The method applied in this research was hot and cold soaking . After a test sample was preserved with boric acid, then its retention, penetration, and ASE scores were calculated, and the examination of MOE and MOR was conducted eventually. In this research, the best concentrate was gained at treated concentrate 3 % for the retention score, penetration and ASE scores are 1.39 kg/m2, 0.89 mm, and 2.65 %. While the highest MOE and MOR score was gained at 0% concentrate (controlled) with 17619 kg/m2 and 210 kg/m2. The retention and penetration scores increased as the concentrate increased. But the distribution the preservative was able to decrease the strength of wood. Keywords : preservation, rubber wood, boric Acid, MOE, MOR
Karakteristik Fisis dan Mekanis Papan Semen Bambu Hitam (Gigantochloa Atroviolacea Widjaja) dengan Dua Ukuran Partikel Physical and Mechanical Characteristics of Cement Board Bamboo Hitam (Gigantochloa atroviolacea Widjaja) Using Two Particle Sizes. Rini Armaya; Evalina Herawati; Tito Sucipto
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Cement boards was made ​​from bamboo hitam (Gigantochloa atroviolacea Wdjaja) using two particle sizes of 20 mesh and 40 mesh. The difference in particle size thought to affect the quality of the resulting cement board. The purpose of this study was to evaluate the physical and mechanical properties of cement board bamboo hitam using two  particle sizes.Boards were made ​​with size 25 cm x 25 cm x 1 cm with density of 1.2 gr/cm3 of two different particle size of 20 mesh and 40 mesh and each made ​​in three replications. Cement board was made with ratio of particles, cement and water in 1:3:2 and the addition of MgCl2 catalyst was 5%. In general, physical properties of  cement board had completed the standard JIS A 5417-1992, both cement board particle size 20 mesh and 40 mesh. Physical properties of  cement board using particle size of 40 mesh better than  cement board using particle size of 20 mesh. MOR value of  cement board using particle size of 20 mesh had met standard while the value of MOE did not complete the standard. Internal bond and screw holding strenght did not require in standard JIS A 5417-1992. Cement board using particle size of 20 mesh had better mechanical properties than cement board using particle size of 40 mesh. Keywords: bamboo hitam, particle size, cement board, physical properties, mechanical properties
Respon Eksplan Biji Gaharu (Aquilaria malaccensis Lamk.) Terhadap Pemberian 2,4-D Secara In Vitro (Effect of Plant Growth Regulator 2,4-D on Seed Explant A. malaccensis in vitro ) Itonamy Boru Tonga; Edy Batara Mulya Siregar; Nelly Anna
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

ITONAMY BORU TONGA. Effect of Plant Growth Regulator 2,4-D on  Seed Explant A. malaccensis in vitro. Guided by Dr. Ir.Edy Batara Muyla Siregar Ms. And Nelly Anna S. Hut. Msi. Aquilaria malaccensis Lamk. is one of the tree forest that are continuosly exploited. Currently, the Indonesian export of the agarwood was decreasing because its population was endangered by excessive logging. Agarwood propagation need technology for reproduction of agarwood multiplication. Research was undertaken to determine effect of plant growth regulator 2,4-D on seed explant A. malaccensisi in vitro has been performed. This research had purpose to determine  response of seed explant of gaharu by giving different cosentration 2,4-D and to measure growth and developtment result of seed explant of gaharu. This research used a complete Randomized Non Factorial Design with using MS as basic media by added 2 ppm of BAP. The treatment consisted of 2,4-D 2 ppm, 4 ppm, 6 ppm and 8 ppm. Observation made explants fourty two days after planting. The parameter observed were the emergence of callus, callus color and  texture of the callus.  The result showed that callus was obtained as response of A. malaccensis seed explant with 2,4 D and BAP. The concentration 2,4-D 2 ppm showed the best result for the emergence of callus. Callus color is dominate by white and a bit yellow or scoring 4, and the callus texture is dominate by compact callus and compact with node. Keywords: Effect, 2,4- D, in vitro, A. malaccensis Lamk.
NILAI EKONOMI DAN KONTRIBUSI HUTAN RAKYAT BAMBU (Bambusa sp) (Studi Kasus di Desa Telagah, Kecamatan Sei Bingai, Kabupaten Langkat) ECONOMIC VALUE AND CONTRIBUTION OF PEOPLE BAMBOO FOREST (Bambusa sp) (Case Study at Telagah Village, Sub District of Sei Ricardo Felixon Simatupang; Siti Latifah; Yunus Afifuddin
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Bamboo (Bambusa sp) is a forest plant that has many benefits but is not yet used by forest communities widely. This study aims to determine patterns of distribution, economic value and contribution of Bamboo.  This research was using purposive sampling technique. Based on research conducted bamboo evenly to the patterns of distribution and the dominant grows at an altitude of  700-1100 mdpl, while the highest economic value of bamboo is Rp. 9.450.000/year and the lowest economic value is Rp. 810.000/year, while the highest contribution of Bamboo to people’s income is 33,40% and the lowest contribution of Bamboo is 4,84%   Keywords: Bamboo, Distribution Pattern, economic value, contribution, income
Sebaran Daun Sang (Johannesteijsmannia altifrons) Berdasarkan Kelerengan dan Ketinggian Tempat / Distribution of Daun Sang (Johannesteijsmannia altifrons) Based on Slope and Altitude of Place Siti Harianti Manurung; Siti Latifah; Kansih Sri Hartini
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Daun Sang is an plant endemic of Sumatera. This plant only found in two places in Indonesia in Bukit Tigapuluh National Park and Gunung Leuser National Park. This research is important to rescue Daun Sang. Based on spatial analysis can provide important and accurate information about the habitat linkages of Daun Sang. Daun Sang of the components of a particular habitat, areas that may be used as habitat for Daun Sang, or they can be for the predict Daun Sang population in an area and view information about the condition of habitat at any given time. This study aims to map the distribution of Daun Sang and predict the level of habitat suitability based on altitude. Belt Transect used  for this research and overlap (overlay) to create a map of the distribution of Daun Sang. The results showed that Daun Sang were found scattered near each other between one individual with another individual on sloping land and grow in the shade of the trees. Daun Sang habitat suitability for altitude in the resort level Sei Betung is ≥ 60 masl and high suitability for level terrain is "very steep" (≥ 45%). Keywords: Daun Sang (Johannesteijsmannia altifrons), Spatial Analysis, Resort Sei Betung.
Pendugaan Cadangan Karbon Above Ground Biomass (AGB) pada Tegakan Sawit (Elaeis guineensis Jacq.) di Kabupaten Langkat / (The Estimate of Carbon Stocks Above Ground Biomass (AGB) on Palm (Elaeis guineensis Jacq.) Stands in Langkat District) Kepler Dopler Purba; Rahmawaty Rahmawaty; Riswan Riswan
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Palm Oil Plant a CO2 absorber as well as other crops such as forest plants. Langkat District is one of the areas that have a high oil commodity. Research on AGB estimates carbon stocks in standing palm (Elaeis guineensis Jacq) in Langkat conducted in July through September 2012. This study uses Allometric that calculate carbon stocks in standing palm (Elaeis guineensis Jacq.) Associated with the value of Normalized Difference Vegetation Index (NDVI).Largest carbon stocks contained in the 14-year-old stands of oil reserves by 68.84 tonnes carbon / ha and the smallest carbon stocks contained in the 3-year old palm stands by the number of carbon reserves 19.20 tonnes / ha. Vegetation index can be calculated by the model equation Y = 38.39 + 26.24 x NDVI on Landsat imagery. NDVI has a positive relationship with the value of the field in which the R ² of the resulting equation is equal to 49% of the stands of palm oil (Elaeis guineensis Jacq.). Keywords: Carbon stock estimate, Above Ground Biomass, Palm Stands, Elaeis guineensis Jacq.
Pola Aktivitas Orangutan Sumatera (Pongo abelii) Pada Struktur dan Komposisi Vegetasi Hutan di Pusat Pengamatan Orangutan Sumatera Taman Nasional Gunung Leuser (Activity pattern of Sumatran Orangutan (Pongo abelii) in the Structure and Composition of For Reza Rangkuti; Pindi Patana; Siti Latifah
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Forest act as a habitat which is one of the main elemen in orangutan lives. Increasing rate of forest degradation in recent years considerable influence on the orangutan population growth, its looks from the orangutan population decline significantly in recent years. Therefore, it is necessary to the preservation of orangutans through habitat management, and ecological and quantitative aspect of orangutan become interest of this study. The methodology which used in this research are the direct observation of daily activities orangutan’s and vegetation analysis in the forest spots that have been passed by the orangutan. The result of this research shows that orangutan average active starting at 07.33 WIB and start to make a nest for sleep approximately at 18.15 WIB with an average length of daily activity orangutan approximately 10 hours 42 minutes. Daily activity averange of orangutan for proportion duration are 15,03% for feeding, 36,59% for moving, 44,82 % for resting, and 3,56% for nesting and for frequencies are 24,09% for feeding, 32,95% for moving, 37,76% for resting, and 5,2%% for nesting. The composition of forest vegetation consists of 24 species of trees, 15 species of poles, and 20 species of saplings which identified overall approximately 88,53% of food plants. PPOS forest area has an index of species diversity (Sannon Wiener index) 2.717 species of trees, 2,235 species of poles, and 2,554 species of saplings. Keywords: Sumatran Orangutan, Population, Structure and composition of forest vegetation, Sumatran Orangutan Observation Center Gunung Leuser National Park
PERSEPSI MASYARAKAT TERHADAP PENGEMBANGAN EKOWISATA DI DESA HUTA GINJANG, KECAMATAN SIANJUR MULA-MULA, KABUPATEN SAMOSIR, PROVINSI SUMATERA UTARA (PUBLIC PERCEPTION OF ECOTOURISM DEVELOPMENT IN HUTA GINJANG VILLAGE, SIANJUR MULA-MULA SUB-DISTRICT,SAMOSIR Benmart E. Manalu; Siti Latifah; Pindi Patana
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This research aimed to examine the potential of ecotourism and public perception of ecotourism development in the village of Huta Ginjang, District Sianjur Early, Samosir Regency. To assess the potential of ecotourism is done by observation. While the public perception through questionnaires and interviews. The results showed that the village of Huta Ginjang has natural and cultural potency that can be developed as ecotourism appeal. It is also supported by the public perception that states that peoples agree on the development of ecotourism in the village of Huta Ginjang. Keywords: ecotourism, public perceptions of ecotourism development, Huta Ginjang Village.
ANALISIS PEMASARAN KEMIRI RAKYAT DI DESA PERBULAN, KECAMATAN LAUBALENG, KABUPATEN KARO (Marketing Analysis of Private Candlenut in Perbulan Village, Laubaleng Subdistrict, Karo District) Silvi Yulia Br Singarimbun; Agus Purwoko; Oding affandi
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Candlenut is the non-timber forest product, that seeds are used as an oil source and spices. This study aims to determine the candlenut marketing channels, marketing margin and marketing efficiency levels candlenut Perbulan Village, Laubaleng Subdistrict, Karo District. The method used in this research was purposive sampling and snowball sampling method to determine the flow of marketing. The results showed that there are four candlenut marketing channels. The average marketing margin earned by farmers is 69,75%, the traders paring receives an average marketing margin 17,21%, traders village receives an average marketing margin 1,90%, average marketing margin earned by district collector is 5,16% and the dealer receive marketing margin 5,43%. Candlenut marketing that took place in the Perbulan village generally efficient. The most efficient marketing channel is a marketing channel II with the marketing efficiency of  2,34%. Keywords: marketing efficiency, candlenut, marketing chain, marketing margin
Penilaian dan Pengembangan Potensi Objek dan Daya Tarik Wisata Alam di Taman Wisata Alam (TWA) Sibolangit (Assessment and Development of Object Potency and Pull Factor of Ecotourism at Sibolangit Recreational Park) Irena Astria Ginting; Pindi Patana; Rahmawaty Rahmawaty
Peronema Forestry Science Journal Vol 2, No 1 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Sibolangit Recreational Park is an areal that has many tourism potency so that suitable as an ecotourism destination, in spite of actually this location is rarely visited of tourist. The purpose of this research is to estimate tourism potency which there are over there and to find the strategy could be done related to its development. The estimation of ecotourism in this place used guidance of ADO-ODTWA by Dirjen PHKA 2003 that had been modified. Development strategy was got by identification of strength, weakness, opportunity, and threatment at ecotourism area and then analyzed by using SWOT matriks. Result of this research showed that Sibolangit Recreational Park has ecotourism potency proper to develop with properness 69,23 % and present in the first quadran SWOT analyze. It  means that Sibolangit Recreational Park exist in favorable condition because of having internal strength and external opportunity. Keywords: Ecotourism valuation and development, tourism pull factor, Tourism Potency, Sibolangit Recreational Park

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