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Sumatera utara
INDONESIA
Peronema Forestry Science Journal
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 304 Documents
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Pendugaan Karbon Tersimpan di Berbagai Jalur Hijau Jalan Arteri Sekunder Kota Medan Bagian Tengah (Estimation of Carbon Stored in Different Green Line Arterial Road Secondary Central Part of Medan City) Elisa Manik; Siti Latifah; Pindi Patana
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Green belt is one of the green open spaces are quite effective in absorbing carbon emissions and pollutant gases around the highway in the city.  Plants were grown in a green belt has the ability to absorb carbon emissions. Because it is necessary to do the calculation of the carbon stored in various green belt in the secondary arterial roads Medan city. The purpose of this research was to calculate the potential carbon is stored in various green belt in the secondary arterial roads Medan. Sampling lines and plant samples was conducted using purposive sampling and census methods. Calculation data using allometric models. The results showed that there are 8 types of plants on the green belt of research of the kind that most dominating is Palem Raja (Oreodoxa regia). The highest value of carbon stored by type of plant found in plant angsana (Pterocarpus indicus) with a total value of carbon stored in the 8 green belt, namely 525,337 Ton/Ha, or an average of 65,67 Ton/Ha. The highest value of carbon stored by the green belt of research there is on the path to Balai Kota street, district of Medan Barat with a value of 274,985 Ton/Ha. Keywords: green belt, carbon stock, secondary arterial roads, allometric models.
Evaluation of Land Capability for Forest Trees Species and Multi Purpose Trees Species in Tuntungan Sub-distric, Medan City Elvira Sihotang; Rahmawaty Rahmawaty; Abdul Rauf
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Currently, there is a tendency to use the land for the benefit of the economy , which could increase income. Where, land use based-on market price, led to alternation of type of crops grown. Planning of the use of land should focus on balance and environmental sustainability. The purpose study was to evaluate the ability of a class of land for forest plants and multi trees species in the district multipurpose in Medan Tuntungan sub-distric. Matching method and Geographic Information Systems was used to evaluate the study. There were 9 unit of lands which the land capability classification was dominated by class I with a limiting factor to the erosion hazard, suggesting that it was necessary to the improvement of land that paralled to contour planting, terracing, and planting land cover . Land units VII and IX was the most land units inappropriate. This land units should be established as a natural protected area because the slopes are difficult to manage . Keywords: GI, Land capability, Medan Tuntungan Sub-distric
Pendugaan Cadangan Karbon Pada Tanaman Karet (Hevea brasiliensis Muell. Arg.) Umur 10 Tahun di Perkebunan Rakyat Desa Tarean, Kecamatan Silindak, Kabupaten Serdang Bedagai Evan Satria Saragih; Muhdi Muhdi; Diana Sofia Hanafiah
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The rate of change in forest area into plantations tend to be greatly improved from year to year. As a result of forest land will be increasingly threatened its existence as it is converted to plantations. For that to know how the ratio of the absorption of CO2 by growers compared with forests. The purpose of this research were to know the carbon content in each section rubber tree (Hevea brasiliensis Muell. Arg.) and to determine the potential of carbon reserves in the rubber tree (Hevea brasiliensis Muell. Arg.) age of 10 years in people plantation Serdang Bedagai. The method of estimaty carbon stocks  had done destructive ends. Selection of plant samples carried out with purposive sampling. The best equation for estimating biomass and carbon selected using allometric equations based on the value of the highest R-Sq and practicality aspect. The results showed that allometric models for biomass and carbon wasW=3.42 DBH1.153 and  C = 0.58 DBH 1,586 respectively. The potential of biomass and carbon in smallholder rubber plantations Tarean Village, District Silindak, Serdang Bedagai were 40.54 tons / ha and 20.58 tons C/ ha ,respectively. Keywords: rubber, Carbon stocks, biomass, allometric models
PENDUGAAN CADANGAN KARBON PADA TANAMAN KARET (Hevea brasiliensis Muell. Arg.) DI PERKEBUNAN RAKYAT DESA TAREAN KECAMATAN SILINDAK, KABUPATEN SERDANG BEDAGAI Frans R Sipayung; Muhdi Muhdi; Diana Sofia Hanafiah
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Global warming is causing an increase in temperature of the earth's atmosphere, climate change, resulting in the dry season and rising temperatures. Efforts to control global warming is with the plant the absorption of carbon. One of which is rubber plant that has a high potential carbon reserve. The purpose of this research want to know the carbon content in each section rubber tree (Hevea brasiliensis Muell. Arg.) and determine the potential of carbon reserves in the rubber tree (Hevea brasiliensis Muell. Arg.) Age of 5 years in people plantation Serdang Bedagai. The method of estimaty carbon stocks done destructive and selection of plant samples carried out with purposive sampling. The carbon content in each section rubber trees (Hevea brasiliensis Muell. Arg.) 5 years of age is different is stem 50.37%, 40.58% branches and leaves 21.68%. The results showed that allometric models for biomass and carbon has W = 3.425 DBH1.153 and C = 0.582 DBH 1.586 , respectively. The potential of biomass and carbon in smallholder rubber plantations Tarean Village, District Silindak, Serdang Bedagai were 2.71 tons / ha and 1.18 tons C / ha, respectively. Keywords: Karet (Hevea brasiliensis Muell. Arg), carbon stocks, biomass measurement, allometric models.
PENDUGAAN CADANGAN KARBON PADA TANAMAN BAMBU TALANG (Schizostachyum brachycladum Kurz.) DI HUTAN RAKYAT BAMBU DESA PERTUMBUKAN KECAMATAN WAMPU KABUPATEN LANGKAT Hafizah Arinah; Muhdi Muhdi; Irawati Azhar
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The Chlorophyll vegetation is able to absorb CO2 from the atmosphere through photosynthesis, as well as the bamboo talang does. The purpose of this research was to account the carbon content in each section of bamboo talang (Schizostachyum brachycladum kurz.) and to determine the best allometric model to estimate the potential of carbon reserves in the bamboo talang in harvested-over areas in people forest bamboo, Village Pertumbukan. The research was carried out in two stages, namely the first stage was to take the data in the field and the second stage was to analyze the carbon content in each section of bamboo talang in the laboratory. The results showed that the best allometric model for estimating biomass and carbon mass of bamboo talang was W = 44.614-14.047D+1.26D2 and C = 20.159-6.390D+0.585D2. Biomass and carbon mass off bamboo talang in People Forest Bamboo Pertumbukan Village, District Wampu, Langkat were 5.85 ton/ha and 2.82 ton C/ha, respectively. Keywords: Bambu talang (Schizostachyum brachycladum Kurz)., community forest, carbon stock, allometric models
ANALISIS KELAYAKAN FINANSIAL AGROFORESTRI SUREN (Toona sureni Merr.) DAN KOPI ARABIKA (Coffea arabica L.) Hana C. Situmeang; Siti Latifah; Alfonsus H. Harianja
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The research is purposed to assess the financial feasibility of agroforestry system which consisted of “suren” (Toona sureni Merr.) and arabica coffee (Coffea arabica L.) in Aek Nauli and Sipolha Horizon Village, North Sumatra. The data was collected from farmers in both villages from March up to July 2015, then analysed using financial feasibility parameters such as NPV, BCR, and IRR. The results shows that this farming system is financially feasible at the interest rates of 5,65% for the average farming scale amounted to 0,22 hectares per 15 years cycle. This system emerges NPV value IDR. 166.792.215,73/cycle/farm, BCR value is 22,80, and IRR is 38,90%. Based on these findings it is needed to compensate additional input for the farmers who can’t harvest their suren which is located on the buffer zone because the stands are utilized to conserve the vulnerable site. Keywords: financial feasibility, agroforestry, intercropping, arabica coffee, suren (Toona sureni)
PENDUGAAN CADANGAN KARBON TUMBUHAN BAWAH PADA TEGAKAN MINDI (Melia azedarach) DAN MAHONI (Swietenia macrophylla) Immanuel Sihaloho; Muhdi Muhdi; Siti Latifah
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Measurement of carbon stock is very important to know how much carbon that can be absorbed by plants. Object of this research was the understorey on stands Mindi (Melia azedarach) and Mahoni (Swietenia macrophylla). The method of measurement used is the destructive sampling method that is the way to harvest the entire understorey which is at 1m x 1m sample plots.  The results of this study indicate that the type of stands under the influence of the composition of the existing understorey under the stand so that the carbon content in the understorey was different. The average of carbon understorey on the second stands is 1.08 tons/ ha. Keywords: understorey, Mindi (Melia azedarach) Mahoni (Swietenia macrophylla), carbon stock.
ANALISIS EKONOMI PADA KAWASAN KONSERVASI EKS-SITU TAMAN HEWAN PEMATANG SIANTAR Johanna Philip Siagian; Muhdi Muhdi; Kansih Sri Hartini
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Ex-situ conservation is the preservation of plant species and wildlife are carried out outside the habitat. Animal park Pematangsiantar is one of conservation organizations in North Sumatra, which is engaged in the utilization of fauna to maintain the continuity of existing species therein. This study aimed to: (1) analyze the economic value of conservation areas Animal Park Pematangsiantar (THPS) based on the travel cost method, (2) analyzing the intensity of the visit in THPS, (3) analyze the factors that affect the intensity of visits to THPS. The samples used in this study was 100 respondents, while the sampling technique used was purposive sampling.  Based on the result of the analysis carried out that the quantity of the economic value of conservation areas THPS with travel cost method was Rp41.534.982.240,-/year. THPS is the intensity of visits to as many as three visits, whereas the factors that affect the intensity of the visit is the length of journey. Keywords: ex-situ conservation, Pematangsiantar Animal Park, economic value, travel cost method, visitation intensity
APLIKASI SISTEM INFORMASI GEOGRAFIS (SIG) UNTUK PEMETAAN SEDIMENTASI SEBAGAI SALAH SATU UPAYA PELESTARIAN DAS WAMPU BAGIAN TENGAH DI PROVINSI SUMATERA UTARA Marisi Intan Retno Widia Siahaan; Rahmawaty Rahmawaty; Abdul Rauf
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Wampu Watershed is defined as the restored watershed carrying capacity according to Regulation of the Minister of Forestry of the Republic of Indonesia Number P.60 / Menhut-II / 2012. The land use for intensive agriculture is very dominant in Wampu watershed and increase the damage which is now often felt by the public. For that reason, that’s done a research for counting the suspended load that occured in Middle-stream of Wampu Watershed. The research was conducted on May up to September 2014 in Bahorok, Salapian, Kuala, and Selesai, by using survey method with taking sample randomly and continued by calculated of suspended load with United State Beureu Reclamation (USBR) method. Data processing used ArcView GIS 3.3. The results of this research showed that the highest suspended sediment discharged in middle-stream of Wampu watershed is 1.501.227,19 grams/second in Tanjung Lenggang, 324.625,29 grams/second in Empus, and 2.572,58 grams/second in Tanjung Keriahen. Therefore it’s necessary to control by doing an appropriate conservation measures to suppress the larger possibility of sedimentation. Keywords : Wampu watershed, Watershed conservation,  sedimentation, USLE method,   GIS
Perencanaan Penghijauan dengan Menggunakan Aplikasi Sistem Informasi Geografis (SIG) (Studi kasus di Kecamatan Medan Tuntungan, Kota Medan) Muara Tarigan; Siti Latifah; Rahmawaty Rahmawaty
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Urban reforestation is one of the efforts made to bring the city into an residential area that  environmentally insights with a beautiful atmosphere, harmonious and cool which can be done in many ways. Many urban lands were converted into residential functioned and shops. This research aimed to determine which area has the potential to be developed into a reforestation area. The method was divided into two phases of data collection and data processing stage. The results of this study indicated that the Medan Tuntungan district level has a greenish relatively balanced with data showing the percentage of green open space of 25.27%. Areas that could potentially be used as the location of the greening plan were Simpang Selayang Village, Tanjung Selamat Village, Lau Cih Village, Namu Gajah Village and Kemenangan Tani Village. Keywords:   Reboisation Planning, Geographic Information Systems (GIS), Medan Tuntungan District, Planning.

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