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Inventarisasi Tumbuhan Obat di Hutan Lindung Kec. Ulu Pungkut, Kab. Mandailing Natal (Studi Kasus : Desa Alahankae, Hutanagodang, dan Simpang Banyak) Ardiansyah Muda Lubis; Siti Latifah; Yunus Afifuddin
Peronema Forestry Science Journal Vol 4, No 1 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The purpose of this research is to analyze species diversity and the use of  medicinal plants by the society aroud the protected forest Subdistrict Ulu Pungkut through species, how to use and part of  plants that use for medicine. The research was held at Alahankae, Hutanagodang, and Simpang Banyak villages, Mandailing Natal Regency, Nort Sumatera Province. The research used direct observation method by making sampling plot, literatur study, and identification of plants species. Inventory results in the field found 26 species of plants used as medicine. Most of medicinal plants that use by people was herb habitus. Leaves is the most part of medicinal plants that use by people for medicine. Eating is the general way of using medicinal plants. Cooking and grinding is the general threatment way before using the medicinal plants. Medicinal plants species diversity in protected forest area at Ulu Pungkut Subdistrict including moderate, aboundance of medicinal plant species classified as not much to rare, while the evenness index included to spread almost evenly.Keywords :  Inventory, Medicinal Plants, Reserve Forest, Bioiversity, Kecamatan Ulu Pungkut
Komposisi dan Stratifikasi Vegetasi Pohon di Hutan Pendidikan Universitas Sumatera Utara, Tongkoh, Kabupaten Karo, Provinsi Sumatera Utara Rehulina Rehulina; Agus Purwoko; Siti Latifah
Peronema Forestry Science Journal Vol 3, No 2 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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The purpose of this research is to know the composition and stratification of vegetation at Education Forest of North Sumatra University, Tongkoh, Karo District, North Sumatra Province. This research conducted from May to June 2013. Data collection was using “lines method”. The sample plot techniques was a Purposive Sampling method with random start. The plot size was 20 m x 100 m. The results showed that found 73 species of 31 Families of trees, in which 5 Families with the most species of trees which Lauraceae (9 species), Meliaceae (7 specie), Myrtaceae (6 species), Fagaceae (5 species), and the Guttiferae, Moraceae, and respective Sapotaceae (each are 4 species). Education Forest  of USU compiled by A stratum (62 individuals), stratum B (416 individuals), stratum C (2133 individuals), and stratum D (164 individuals) in a 2 ha area.Keywords: tforest compotiion, frest stratification, education forest of North Sumatra University (USU)
Pendugaan Biomassa Eucalyptus urograndis IND 47 di Estate A, Sektor Aek Nauli, PT Toba Pulp Lestari Tbk Rudianto Gurning; Siti Latifah; Kansih Sri Hartini
Peronema Forestry Science Journal Vol 3, No 2 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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The hybrid Eucalyptus urograndis IND 47 is a hybrid between Eucalyptus urophylla ST Blake and Eucalyptus grandis ex Maid W.Hill developed in operational scale in PT Toba Pulp Lestari Tbk (TPL). Therefore, a research had been  conducted on E. urograndis IND 47 in Estate A, sector of Aek Nauli, PT TPLTbk. The aim of this research was to predict biomass of E. urograndis IND 47. The results showed that the biomass of E.urograndis IND 47 in Estate A was 8,431.25 tons for total area of 367.38 ha compartment with an average biomass was 22.95 tons /ha with ages of 1-3.3 years. Biomass differences caused by differences in ages of trees, number of trees in each compartment and environmental factors.Keywords: biomass, Eucalyptus urograndis IND 47, PT Toba Pulp Lestari Tbk
Analisis Pendugaan Konsumsi Air dan Nilai Ekonomi Air Sungai Parsariran untuk Kebutuhan Sektor Rumah Tangga Aswin Pratama; Siti Latifah; Yunus Afifuddin
Peronema Forestry Science Journal Vol 3, No 2 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Water is the most essential need for human and people will pay no matter how to get it, so that the water can be said a non economic good. The forest as the main function of the Hydrological cycle which is a unified system that can’t be separated, but the people in Hapesong Baru village still not understand the value of economic benefits available from water in the Parsariran River. This study aimed to determine the economic value of water in quantitative household in subdistrict of Batang Toru and to determine the economic value estimate household water needs from Parsariran River. This study conducted on August 1 to September 7, 2013, using the model cuantitative collecting data through interviews with respondents. The result showed that the value of the benefits of total household water is Rp. 28,482,522,- - in one year, with an average value of benefits domestic water obtained is Rp. 418 860 , - in one year/household. The model estimates the economic value of water equal to the household sector is Y = 19,86 X1-0,0618. The results can be seen that the value of the economic benefits of domestic water has contributed greatly to the needs of the community .Keywords: Water Consumption Prediction, Economic value of water, Parsariran River
Pendugaan Emisi CO2 dan Kebutuhan O2 Serta Daya Serap CO2 dan Penghasil O2 Pada Taman Kota dan Jalur Hijau di Kota Medan Ahmad Rivai; Pindi Patana; Siti Latifah
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Carbondioxide (CO2) produced by the fumes and industrial activities can harm humans if there are no trees or urban forests that can absorb CO2 and emissions resulting from human activities. Therefore, an effort to reduce air pollutants such as CO2 gas in urban areas, especially the city of Medan is a way to build a green open space in the form of urban forests. This study aimed to calculate the amount of CO2 emitted and the amount of O2 required in Medan based emissions from motor vehicles, human respiratory and industry and widely suspected optimal urban forest based on the function of absorbing CO2 and producing O2. Estimation results indicate that the total CO2 emissions in the city of Medan in 2014 amounted to 2,659,091.01 tons while demand for O2 in Medan in 2014 amounted to 2,430,843.07 tons . So the ability of the urban forest in the form of urban parks and green line in absorbing CO2 14683.84 tons and the capability of producing O2 amounted to 5551.2 tons .Keywords : CO2 emissions , O2 Demand, CO2 Absorbance, O2 Production, city park, green belt.
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.
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.
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.
ANALISIS PENDAPATAN PETANI SILVOPASTURA DI DESA AMAN DAMAI, KECAMATAN SIRAPIT, KABUPATEN LANGKAT Sahroni Lubis; Siti Latifah; Tri Martial
Peronema Forestry Science Journal Vol 5, No 2 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Forest land use to agriculture recognized cause problems such as decreased soil fertility, erosion, extinction of flora and fauna, floods, droughts and even global environmental change. One land management system to tackle this problem is the model of agroforestry. Silvopastura management in the village of Aman Damai is still underdeveloped, and the lack of research related to land management system with silvopastura. Based on this, the study aims to identify the components of silvopastura, to know silvopastura practice contributes to the household income, and analyze factors that affect the income of silvopastura farmers in the Aman Damai of village. This research was done in May 2015. Sampling was done by purposive and methods used in the form of multiple linear regression analysis. The research showed that Component of silvopastura In Aman Damai village include component (wood plants) in the form of multipurpose tree species (MPTs) with the components of the farm (pasture). Multipurpose tree species that was developed is avocado, star fruit, durian, guava, citrus, cocoa, rubber, kuini, olive, mango, jackfruit, petai, Rambe, rambutan, and sapodilla. While the type of pasture being developed are chickens, goats, buffaloes, and cows. Silvopastura practices contribute to the household income of Rp. 397. 368. 000 (52.56%), greater than the contribution of farming to household income is Rp. 358.800.000 (47, 44%). The independent variables that significantly affect the dependent variable is a variable number of pasture and land ownership. Keywords : Farmers income, Silvopastoral, Multipurpose trees species (MPTS), Aman Damai Village.
Co-Authors Agus Purwoko Ahmad Rivai Alfonsus H. Harianja Andika Fera Waty Harahap Anna O Simalango Ardiansyah Muda Lubis Arie Yerikho Ginting Aswin Pratama Dadang Rahman Munandar Dayanti, Irma Elisa Manik faradika Hana C. Situmeang Heru Frianto Simanjuntak Immanuel Sihaloho Intania Nur Wanri Irvan Efendi Naibaho Kansih Sri Hartini Mahawan Karuniasa Mohd Hasmadi Ismail Muara Tarigan Muhdi Muhdi OK Hasnanda Syahputra Okto Prayitno Siahaan Pargito Pargito Pindi Patana Polman Roni Tua S Rahmawaty Rahmawaty Rahmawaty Rehulina Rehulina Rikhi Rikardo Rizkia Anilva Rizky Maudy Anggraini Rudianto Gurning Sahroni Lubis Sarma Siahaan Seca Gandaseca Sehat Martua Pasarbu Simanjuntak, Friska Irene Siregar, Tumpak Solly Aryza Sudjarwo Sudjarwo Tri Martial Tri Widiastuti USWATUN HASANAH yohanes bobbie yanter Yunus Afifuddin