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All Journal Bionatura Jurnal Ilmu Dasar Jurnal Natur Indonesia JBIO: jurnal biosains (the journal of biosciences) Tunas Geografi Jurnal Agrista Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter Peronema Forestry Science Journal Jurnal Ilmu-Ilmu Pertanian Indonesia Jurnal Agribisnis Indonesia (Journal of Indonesian Agribusiness) Journal of Degraded and Mining Lands Management Jurnal Geografi Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Serambi Engineering Journal of Sylva Indonesiana Jurnal Agrium Pelita Masyarakat Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Golden Ratio of Social Science and Education CONSEN: Indonesian Journal of Community Services and Engagement Innovative: Journal Of Social Science Research Rona Teknik Pertanian Global Forest Journal Journal of Environmental and Development Studies INTERNATIONAL JOURNAL OF FINANCIAL ECONOMICS (IJEFE) Biodiversitas Journal of Biological Diversity
Delvian
Faculty Of Forestry, Universitas Sumatera Utara, Durin Tunggal, Pancur Batu Regency, Deli Serdang, 20353, North Sumatra, Indonesia
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Aktivitas Mikroorganisme Pada Tanah Bekas Erupsi Gunung Sinabung Di Kabupaten Karo Puput Sarah; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Volcanic ash released when the eruption has an acidic pH, thus affecting the amount and activity of microorganisms in the soil. Therefore conducted this study to determine the activity of soil microorganisms in the former eruption of Mount Sinabung in Karo. Measurement of total soil microorganisms was done by Agar Cawan method, while the measurement of the activity of soil microorganisms was conducted jar and titrimetic method. The result of the research showed that the higher of the pH, the colony of microorganism will be much and the reverse. The higher of C- organic, the activity of micoorganism will be high within the soil, and the reverse. Respiration value on land affected by volcanic ash at a depth of 0-5 cm was 0,96. Respiration value on land affected by volcanic ash at a depth of 5-20 cm was 1,16. Respiration value on land that was not affected by volcanic ash was 1,52.Keywords: Volcanic ash, soil microorganisms, microorganism activity, soil depth.
Analisis Kualitas Pohon di 5 Jalur Hijau Kota Pematangsiantar Annie N Hutagalung; Delvian Delvian; Deni Elfiati
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This study aims to determine the tree species and tree quality found on five green belt in Pematangsiantar. This study was carried out along the Medan road, Sisingamangaraja road, Rakutta sembiring road, Ahmad yani road and D. I Panjaitan road. This research used census and scoring methods. Assessment conducted of tree health involved trunk health and crown health,and then the technical of trees involved threat to buildings, threats to roads, sidewalks and drainage, and threats to electric and telephone wires. Results showed that tree species found in five green belt as much as nine trees. The trees most often found are mahogany (Swietenia mahogani). The quality of trees in five green belt when viewed from the tree health included in light category, and from technical trees included in moderate category. The most good quality tree located on Ahmad yani street, while the most low quality trees are on the Rakutta sembiring street. This is indicated from the cumulative value ≥2,5 on Rakutta sembiring road has the highest percentage that is 14,93 %.Keywords : Green belt, Tree species, Tree quality
STRUKTUR VEGETASI DAN CADANGAN KARBON TEGAKAN DI KAWASAN HUTAN CAGAR ALAM LEMBAH HARAU KABUPATEN LIMA PULUH KOTA SUMATERA BARAT Muhammad Iko Pratama; Delvian Delvian; Kansih Sri Hartini
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

composition of plant species and the amount of carbon stocks stored in Nature Reserve Forest Lembah Harau at tree level and the level of the pole. The sampling intensity is 5 % of the total area of 270.5 ha. So that the total area of observation is 13.525 ha with a plot measuring 20 m x 100 m were 68 plots. In each plot were made sub-sub plot measuring 20 m x 20 m for tree and 10 m x 10 m for pole. Vegetation analysis use a combination of track method and swath line method, while the biomass estimation use non destructive sampling method. The results showed that 80 kinds of plants with a number of individuals as much as 246 individuals/ha. The highest important value indeks of tree species is Rhodelia teysmani with the value 53.33 %, while in the pole species is Nephelium mutabile with the value 46.30 %. The amount of carbon stocks stored in trees and poles are 62.57 ton/ha.Keywords : vegetation , carbon stock , nature reserve lembah harau
PENGARUH INOKULASI MIKORIZA ARBUSKULA TERHADAP PERTUMBUHAN BIBIT TANAMAN SLOW GROWING (GLODOKAN DAN TANJUNG Reza Dimas Putra; Delvian Delvian; Deni Elfiati
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This research aims to find out the response or effect of arbuscular mycorrhizal inoculation on growth of slow growing plant. This research was conducted in the greenhouse of the Faculty of Agriculture, University of North Sumatra, Medan.This research uses completely randomized factorial design with 2 factors namely mycorrhizal doses (0 g / seed, 5 g / seed, 10 g / seed, and 15 g / seeds) and plant species (glodokan and tanjung). Parameters measured were plant height, plant diameter, leaf number, percentage of root colonization, P uptake, total dry weight, and short root ratio. The results showed the interaction between plant species and dose mycorrhizal not significantly affected all parameters of eachs treatment. Conversely single factor plant species showed significant effect on all parameters of each treatment, but to a single factor dose of mycorrhizal significant effect on the total dry weight and P uptake but no significant effect on the parameters of height, diameter, number of leaves, the ratio of the root crown and root colonization. Different types of plants  will give a different response to growth.Keywords: Mycorrhizal Fungi, Tanjung, Glodokan, Marginal Land
CADANGAN KARBON TERSIMPAN PADA TEGAKAN CEMARA LAUT (Casuarina equisetifolia L) Helmud Putra Anas Hutasoit; Delvian Delvian; Kansih Sri Hartini
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This research aimed to estimate the carbon stocks in Casuarina equisetifolia L according to the habitat and to compare the carbon stocks of Casuarina equisetifolia L on two different  locations. The method used to calculate carbon stocks is non-destructive method. The result showed that the amount of carbon stocks in Sri Mersing Beach is 18,524 ton/ha while in  the Gudang SCM PT.Pertamina Beach is  11,45 ton/ha. The average of carbon stocks in Sri Mersing Beach is 154,36 kg/tree while in the Gudang SCM PT. Pertamina Beach is 69,57 kg/tree . The differences between the amount of carbon stocks in this two research areas are caused by the density of trees and silviculture factor.Key words : Carbon stock, Casuarina equisetifolia L, Sri Mersing Beach, Gudang SCM PT.                     Pertamina Beach.
Dampak Kebakaran HutanTerhadap Sifat Fisika dan Sifat Kimia Tanah di Kabupaten Samosir Purnama Sari Sagala; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Forest damage caused by forest fires could make a great harm. This result aims to determine the impact of forest fires on the physical and chemical properties of  soil. The research was conducted in May-July 2014. The soil samples were taken in Samosir, North Sumatra. The method used on this result is zig-zag method. Soil analysis carried out in the Central Laboratory of the Faculty of Agriculture, University of North Sumatra. The results showed that forest fire is not give impact on the physical and chemical properties of  soil,because of the type of fires are crown fire.Keywords: Crown fires, the impact, the physical properties of soil, soil chemical properties
Status dan Keanekaragaman Fungi Mikoriza Arbuskula (FMA) pada Lahan Produktif dan Lahan Non Produktif Zulfredi Zulfredi; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Existence and status of the AMF is influenced by biotic and abiotic factors. This research aims to study and know the status and existence of Arbuscule Mycorrhizal Fungi (AMF) on the land productive and non productive land. Soil samples derived from the productive and non productive land in Tanjung Anom. This research uses the filter to get the spores and staining method to determine root colonization. Results showed that AMF colonization in productive land obtained 17.83% with an average density of 80 spores / 50g soil, and the percent of AMF colonization in non productive land obtained 42.76% with an average density of 89 spores / 50g  soil. AMF spore types Glomus and Acaulospora on productive land obtained 13 spore types Glomus sp, and on non productive land obtained 14 spore types Glomus sp and 2 Acaulospora spore types. Total spore types were obtained 27 spore types, 25 types of spores Glomus sp and 2 Acaulospora sp spore types.Keywords : Productive Land, Non Productive Land, AMF, Spore, Colonization.
KEANEKARAGAMAN FUNGI MIKORIZA ARBUSKULA PADA HUTAN TRI DHARMA UNIVERSITAS SUMATERA UTARA Alan Syahputra Simamora; Delvian Delvian; Deni Elfiati
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The goal of this research is to know the diversity of Arbuscular Mycorrhizal Fungi on Tri Dharma Forest University of North Sumatra. The samples of soil and roots of plants taken from the land of Tri Dharma Forest University of North Sumatra. This research use soil separating method to obtain spores and root coloring method to find out root colonization.The results show that an increase in the average density of spores from the field on the results of trapping, for the percentage of Arbuscular Mycorrhizal Fungi colonization in the roots of plants at 56,5% include grade 4 or high categories. Found 2 genus, namely Genus Acaulospora and Genus Glomus. Of the field found as many as 20 types of spores by average spore density 27 spores/50 g soil and trapping results are found as many as 26 types of spores by average spore density 102 spores/50 g soil.Key words: Mycorrhizal Fungi Fungi, Tri Dharma Forest
KEBERADAAN FUNGI SELULOLITIK PADA TANAH BEKAS ERUPSI GUNUNG SINABUNG DI KABUPATEN KARO Dendi Parasian Pane; Deni Elfiati; Delvian Delvian
Peronema Forestry Science Journal Vol 5, No 1 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Volcanic dust expelled while eruption have a sour potential of hydrogen and the result led to a decrease in the diversity various and microorganism population. The fungi are important instrument in the process of decomposition of organic material for all types of soil. The fungi selulolitic have the ability to hydrolyze the cellulose naturally through it’s cellulose activity. This research aims to study the presence of selulolitic fungi contained on land under forest stands are former eruption of Sinabung Mountain in Karo District. Soil sampling was done with diagonally composite. Soil samples exposed to the eruption consisted of two samples that volcanic dust with a depth of 0-5 cm and mixed with volcanic dust soil to a depth of 5-20 cm, while for the control of soil samples consisted of a sample of the soil to a depth of 0-20 cm. The isolation of fungi and identification were done in the laboratory of Soil Biology, Agroecotechnology, Faculty of Agriculture, University of Sumatera Utara. This research was carried out from March 2015 until May 2015. The results showed that there were 4 types of selulolitic fungi found in soil samples affected by volcanic dust and are not affected by volcanic dust, namely Aspergillus, Penicillium, Rhizopus, and Trichoderma.Keywords : volcanic dust, former eruption land, cellulose, selulolitic fungi
ANALISIS VEGETASI TUMBUHAN BAWAH PADA AREAL LAHAN BEKAS TAMBANG EMAS RAKYAT Jeskiel Sipayung; Delvian Delvian; Kansih Sri Hartini
Peronema Forestry Science Journal Vol 5, No 3 (2016): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The activity of mining has negative effects to the soil both physical, chemical, and biological. In Physically the structure of the soil, its texture, and porosity will be broken. Mine waste (Tailing) will influence in plant growth because the tailing contained mercury (Hg), lack of micro and macro nutrition and lack of organic substances. Reclamation activities are needed. As a starting point on reclamation, it is a need to be known what locally ground cover which can live in a mining field will be recommended to be planted. This research purposing on knowing what the type of ground cover vegetation which exist on field area of ex civillian gold mining in Kecamatan Naga Juang Kabupaten Mandailing Natal, knowing soil chemical condition for parameter pH, organic-C, available-P, KTK, choose cover vegetation potential for reclamation actifity. Vegetation data collection done in 20 m x 20 m plot purposively arranged, then the K (density), KR (relative density), F (frequency), FR (relative frequency), and INP (important value index) will be analyzed. Result of the research showing that there are 23 type of ground cover vegetation; Paspalum conjugatum, Micania micrantha, Acmella uliginosa, Paspalum comemersorili, Ageratum conyzoides, Crassocephalum crepidioides, Bidens sp, Sida rhombifolia, Solanum torvumn, Ipomea hederaceae, Diplazium esculentum, Calopogonium mucunoides, Borreria sp, Centrosema pubescens, Andropagu aciculatus, Borreria laevis, Amaranthus sp, Cucumis sp, Colocasia esculenta, Chrysopogon sp, Physalis anguleta, Urena lobata, Polygala paniculata. Condition for parameter pH: somewhat acid, organic-C: low, available-P: moderate, KTK: moderate. From those 23 type, there are 5 ground cover potential as pioneer plant based on the highest INP; Paspalum conjugatum (INP: 73,108), Micania micrantha (INP: 36,757), Acmella uliginosa (INP: 10, 968), Paspalum comemersorili (INP: 10,067), Ageratum conyzoides (INP: 9,016). Keywords: gold mining, field reclamation, ground cover  
Co-Authors . Elvitriana . Rosmayati . Zulfan Abda Abda ABDUL RAUF Abdul Rauf ABDUL RAUF ABDUL RAUF ADRIAN HARTANTO Agree Hutami Sinaga AGUS PURWOKO Agustrisno, Agustrisno Alan Syahputra Simamora Alief Aththorick Ameilia Zuliyanti Siregar Ameilia Zuliyanti Siregar Annie N Hutagalung Ariasta Bereona Tarigan Ariasta Bereona Tarigan Arida Susilowati Arida Susilowati Iswanto Arrasyid, Nurfida Khairina Aulia, Dwira Nirfalini Aznawi, Andi Aznan Bejo Slamet Budi Utomo BUDI UTOMO Budi Utomo Ceriati Magdalena Simanjuntak D Elfiati D Elfiati, D Dendi Parasian Pane Deni Elfiati Deni Elfiati Deni Elfiati Deni Elfiati Diana Sofia Hanafiah Dianingrum, Tengku Edy Batara Mulya Siregar Elfiati, D. - Elfiati, Deni Elfiati ENDANG HILMI Erman Munir ESTHER SORTA MAULI NABABAN etti sartina siregar Fadhilah, Amanatul Fahriza Zuhri Fathiatul Rizkia Aulin Febri Yoanita Harahap Febri Yoanita Harahap Fikarwin Zuska Gita Nasrani Sembiring Hamdani Harahap Hamidah Hanum Helmud Putra Anas Hutasoit Heni Pujiastuti Henti Hendalastuti Rachmat Herna Sianipar Hesti Wahyuningsih Ichwana Ichwana Indirawati, Sri Malem Ipanna Enggar Susetya, Ipanna Enggar IRWANDI IRWANDI Isnen Fitri Jamson H Tampubolon Jeskiel Sipayung Jumilawaty, Erni Jumilawaty Juneith O S Nadeak Kansih Sri Hartini Kiking Ritarwan Lusi Astri Simamora M. Basyuni Manurung, Cristo Mori Romario Masitta Tanjung MASRIZAL SARAAN Ma’ruf Tafsin Mohammad Basyuni MOHD HASMADI ISMAIL Mohd Hasmadi Ismail MOHD NAZIP SURATMAN Mona Fhitri Srena Mubaraq, Alfian Mubaraq Muhammad Iko Pratama Mukhlis Nauly, Meutia Nauly Nelly Anna Netti Herlina Nini Rahmawati Nini Rahmawati Nius Abdi Ginting Oding affandi Oding Affandi Pulungan, Afran Rouzani Puput Sarah Purnama Sari Sagala R. Hamdani Harahap R. Hamdani Harahap R. HAMDANI HARAHAP RAHMAWATY RAHMAWATY RAHMAWATY RAHMAWATY Rahmawaty Rahmawaty RAHMAWATY RAHMAWATY Rahmawaty, Rahmawaty Rangkuti, Ahmad Baiquni Rauf Rauf Reza Dimas Putra Ria Pertiwi Sianturi RIDAHATI RAMBEY Ridwanti Batubara Risnasari, Iwan Risnasari ROBERT SIBARANI Ronald Pandapotan Marpaung Sahat A. Sihombing SECA GENDASECA Shanti Desima Simbolon Siahaan, Indri Marita Siahaan, Nelson Manumpak Sidabukke , Simon Sihotang, Krisda Fadila SIMON H. SIDABUKKE Simon Sidabukke Sinuraya, Sofyanurrazaq Sivaipram, Itchika Sivaipram Slamet, Bejo Slamet Solihin Solihin Sumono Sumono Suryanti Saragih Susilowati, Arida Susilowati T Alief Aththorick T. ALIEF ATHTHORICK T. Alief Aththorick Ternala Alexander Barus Ternala Alexander Barus Ternala Alexander Barus Usnawiyah Usnawiyah, Usnawiyah Wahyu Fahreza Wika Astuti Sagala Zulfansyah, Ichfan Zulfredi Zulfredi Zulkifli Nasution Zumar Halim Rambe