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All Journal Peronema Forestry Science Journal Journal of Tropical Soils Jurnal Penelitian Ekosistem Dipterokarpa JURNAL AGRILAND Jurnal Penelitian Kelapa Sawit Jurnal Penelitian Ekosistem Dipterokarpa PERTANIAN TROPIK
Rahmawaty Rahmawaty
Program Studi Kehutanan, Fakultas Kehutanan, Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Environmental Science

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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.
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
Evaluasi Potensi Jalur Trekking Hutan Pendidikan USU, Taman Hutan Raya Bukit Barisan, Kabupaten Karo (Evaluation of Potential Tracking Rute at Educational Forest of USU, Bukit Barisan Grand Forest Park, Regency of Karo) Devita Saragih; 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

Educational Forest of USU has many interesting objects, unfortunately it has not had development activity yet that can support Educational Forest of USU as a ecotourism destination. Therefore, a research about potential evaluation of ecotourism had been conducted at track of Educational Forest of USU in July – August 2012. This research aimed to evaluate the potential use of track of Educational Forest of USU for ecotourism activities. The research was conducted by using force field analysis method to decide supporting factors and obstacle factors that influenced at Educational Forest of USU. Usu has many ecotourism potencies such as the beauty of nature, flora and fauna. Educational Forest of USU has excellent potential to be developed as a tourist area and needs a great strategy from the administrator to be an interesting ecotourism region. Key Words: Tracking Rute, Educational Forest of USU, Bukit Barisan Grand Forest Park, Ecotourism
Pendugaan Cadangan Karbon Above Ground Biomass (AGB) pada Tegakan Hutan Alam di Kabupaten Langkat (The Estimate of Carbon Stocks Above Ground Biomass (AGB) of Natural Forest Stands in Langkat District) Maurin Lis Evan Panggabean; 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

Climate change is a direct impact of global warming. An effort to reduce the rate of global warming is to estimate the potential of carbon stored. To find out how potential carbon stored, the estimate approaches of the count can use remote sensing data and measurements in the field (ground check). The study aimed to calculate carbon stocks above ground biomass in natural forest stands in Langkat and mapped the distribution of carbon by using NDVI method. Non destructive method and landscape scale Normalized Difference Vegetation Index (NDVI) method were used in this study. The result showed that the amount of carbon content in above ground biomass in natural forest stands in Bukit Lawang Resort, Tangkahan Resort and Pamah Simelir classified as good, respectively by 213,72 ton/ha, 214,47 ton/ha and 205,99 ton/ha. From the regression equation y = 168,79 + 69,50 * NDVI obtained R2 value of 53% which showed good correlation between the value in the field of carbon calculations with NDVI values. Key words: carbon stock estimate, Above Ground Biomass, natural forest stand.
Pendugaan Cadangan Karbon Above Ground Biomass (AGB) pada Tegakan Agroforestri di Kabupaten Langkat (The Estimate of Carbon Stocks Above Ground Biomass (AGB) on Agroforestry Stands in Langkat) Yusrani Dwi Paulina Malau; 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

Agroforestry system is estimate to have a high potential for carbon sequestration in the atmosphere. Agroforestry systems contributed to reducing the increase in atmospheric CO2 and other green house gases by increasing carbon in the soil and reduce the pressure for forest clearing where the carbon comes from CO2 is taken up by plants and stored in the form of biomass. This study aimed to quantify the carbon content. Calculation of carbon stocks was done with non-destructive by using allometric method. The results indicated that the types of vegetation in agroforestry in Langkat was are sengon, mindi, sungkai, coklat, mangga, mahoni, nangka, durian, karet, kemiri,  jati, jengkol, petai, and duku. The amount of carbon stocks in agroforestry stands in Sei Bingai sub-district, Bahorok sub-district, and Wampu sub-district was 58,438 ton/ha, 63,005 ton/ha, and 56,76 ton/ha. Differences in carbon content acquisition was influenced by vegetation density, diversity of size, and distribution of vegetation density. Keywords: Agroforestry, Carbon Stock, Above Ground Biomass
INFORMASI KEBAKARAN HUTAN DAN LAHAN BERDASARKAN INDEKS KEKERINGAN DAN TITIK PANAS DI KABUPATEN SAMOSIR Pardamean Abadi; Rahmawaty Rahmawaty; Yunus Afifuddin
Peronema Forestry Science Journal Vol 2, No 2 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Samosir District is one of the very prone to forest fire and land. This study aimed to determine the level of fire danger in forest and land use data Samosir regency with the maximum temperature, rainfall and hot spots daily, monthly and yearly 2009, 2010 and 2011. Data analysis was performed at the Laboratory of the Faculty of Forest Inventory Forestry Department of Agriculture using exel Spreadsheet software and Arc. View 3.3. The number of hot spots are detected and the high drought index obtained occur when rainfall is low and did not even rain. Low rainfall occurred in March-July, so in the many forest fires and land. While high rainfall occurred in August-February. Hot spots and drought indices can be used together as an early warning system for the prevention of fire and forest fire management and land on Samosir District. The research showed that the level of the fire crisis in Samosir Regency tend to to lower where fire was only became of the certain months during the year that is during the month of Maret-Juli. The prediction of fire Danger in Regency of Samosir be at the month of Maret-Juli, where very low rainfall value so that assess the high KBDI with the value make an index to the dryness be at the scale high-extreme that it’s among  1500-1749 and 1750-2000 Keywords : Forest and Land Fire Information, fire crisis, Dryness Index, Hotspot
KEANEKARAGAMAN BURUNG MIGRAN DI PESISIR PANTAI TIMUR KABUPATEN DELI SERDANG SUMATERA UTARA Desi Yani Harahap; Pindi Patana; Rahmawaty Rahmawaty
Peronema Forestry Science Journal Vol 2, No 2 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Mudflat and mangrove ecosystem both are the migratory bird habitat. This research was  counting  the index of diversity migratory shorebirds East Coastal of Deli Serdang District, Province of North Sumatra. The result showed  value average  an index of diversity  with medium category (H' 2.03). The highest diversity (H' = 2.12) was found at Bagan Percut and the lowest (H' = 1.94) found at Pantai Ancol. Included in medium category, the diversity of migratory shorebirds influenced by mudflat condition. Keywords: mudflat, migratory birds, mangrove, coastal area.
Pemetaan Potensi Karbon di Lahan Gambut Topogen Pada Berbagai Kecamatan di Kabupaten Humbang Hasundutan, Provinsi Sumatera Utara Grandis Tua Sitanggang; Rahmawaty Rahmawaty; Abdul Rauf
Peronema Forestry Science Journal Vol 2, No 2 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Mapping the potential of carbon was an inventory activities that the carbon content and deposits can be mapped and known. Mapping the potential of carbon would provide information that will be useful in the management of peatland resources. The objective of this study was to map peatland area, know the type of land cover and know the amount of carbon stored in the peat. This research method was the analysis of Landsat ETM + image data of 2012, field measurements and sampling and soil analysis results of field measurements. The results showed the whole area of ​​peatland was 6289.08 ha or about 2.513% of the total land Humbang Hasundutan district. Land cover types are rice peat, peat swamp forests, non-vegetation, shrubs peat, peat mining areas, and coffee farming. Total carbon content in peat Humbang Hasundutan District of 170,45 tonnes. Peatland management should be done by considering the carrying capacity and environmental sustainability, in order to obtain benefits not only on the environment but also on the social and economic community. Keywords: Potential Carbon, Topogen Peat Land, Peat Land Carbon Mapping
Penilaian Kelas Kesesuaian Lahan Tanaman Kehutanan dan Pohon Serbaguna di Kecamatan Payung Kabupaten Karo (Land Suitability Evaluation of Forest Trees Species and Multi Purpose Trees Species in Payung Subdistrict, Karo Regency) Heri Rizki Sitepu; Rahmawaty Rahmawaty; Abdul Rauf
Peronema Forestry Science Journal Vol 2, No 2 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Land suitability evaluation is activity comparing conditions required by land utilization type with characteristics or land quality owned by used land. The purpose of this research was to evaluate  land suitability for forest trees species and multi purpose trees species in Payung Subdistrict Karo Regency. This research was conducted in four stages: 1) Research  preparations, 2) Undertaking research in location, 3) Data processing, 4) Result presentation. The method of this research is matching system. Location has 10 land units. Land unit components were including slope, soil type and land cover. Actual land suitability for Mahogany and Pine dominantly are non suitable and for Ecalyptus, Durian and Avocado are marginal suitable. Potential land suitability for Mahogany and Pine have the same  class as actual land suitability. It is  because the resistor  factor is permanently. Eucalyptus, Durian and Avocado have different land suitability as  actual land suitability for some land units. It is because the resistor factor isn’t permanently. Keywords: Land Evaluation, Land Suitability, Land Unit
Analisis Kemampuan Ruang Terbuka Hijau dalam Mereduksi Konsentrasi CO2 dari Kontribusi Kendaraan Bermotor di Kampus USU Medan (Green Open Space Capability Analysis on Reducing Concentration of CO2 from Motor Vehicles at Campus USU Medan) Irwansyah Banurea; Rahmawaty Rahmawaty; Yunus Afifuddin
Peronema Forestry Science Journal Vol 2, No 2 (2013): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Air pollution has become a serious problem in several major cities in Indonesia, especially Medan. Technological development in the field of transportation contribute to the increasing of energy necessaries, which eventually cause the increasing of energy’s residual that influence the air quality and potentially contaminate the environment. Campus USU as a renowned in Medan should be prepared as a role models to manage the existing condition of air pollution. For that, conducted research on existing vegetation in the campus USU in terms of the flow field emissions from motor vehicles which through the campus USU based on the traffic daily density. The collecting of vegetation data use the census method while for the daily traffic data used the traffic counting method. From the vegetation data will be computed extensive of canopy cover for each tree and will be multiplied by a factor of CO2 absorption coefficient in order to get the capability of vegetation to absorb the CO2 at campus USU. Then, from these capabilities will be obtained how emission levels that can not be absorbed by green open space. If the campus area is not able to reduce the emissions of existing discharge, then the control efforts by planting the trees in the campus area is needed. The research has been done about the existing vegetation in campus USU showed that there are 68 species with 3 types of deployment of green open space. The potential of CO2 absorption from 4.254 trees in the campus of USU Medan is 3327.25 kg / hr lower than the burden of emissions resulting from motor vehicle that is 6088.14 kg / hr. This absorption is not sufficient to reduce the burden of CO2 emissions resulting from motor vehicles. Keywords: Burden of CO2 Emissions, CO2 Absorbtion, Campus USU, Tree Species Distribution, Green Open Space
Co-Authors Abdul Rauf Abdul Rauf Abdul Rauf Abdul Rauf Abdul Rauf Abdul Rauf Abdul Rauf Agus Toni Tarigan Agustoni Tarigan Desi Yani Harahap Devita Saragih Dewi Budiati T.J. Said Edison Parulian Sihombing Erwin Nyak Akoeb fitra syawal Grandis Tua Sitanggang Hadi Wijoyo Heri Rizki Sitepu Heri Santoso Irena Astria Ginting Irwansyah Banurea Kepler Dopler Purba Madiyuanto Madiyuanto Maurin Lis Evan Panggabean Nicho Chandra Siregar Pardamean Abadi Pindi Patana Ridwanti Batubara Riswan Riswan Riswan Riswan Riswan Riswan Sintike Frastika Yenni Asbur Yunus Afifuddin Yunus Afifuddin Yusrani Dwi Paulina Malau