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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 304 Documents
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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
Evaluasi Penggunaan Lahan (Land Use) pada Kecamatan Longkib Kabupaten Subulussalam Tahun 2013 Rizki Auliansyah Putra; Afifuddin Dalimunthe; Budi Utomo
Peronema Forestry Science Journal Vol 4, No 2 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Land use and land cover is an important component in understanding the interaction of human activities with the ENVIronment. Forest management include the planning and supervision in Subulussalam city becomes very importnan to do in oreder to prevent degradation of the forest more severe. The porpose of this study was to quantify land use in 2013. This research methods to  ultilize remote sensing technology and geographical information system (GIS) an interpretation of Landsat-8 OLI/TIRS 2013. Classification results show that the District of Longkib It has 9 land cover classes. The results showed that the land cover is dominated Longkib District of open land.  Action needs structuring ecosystems and prevention in the use of land in the District Longkib.Keywords: land use, land cover, Landsat-8 OLI/TIRS 2013
Persepsi Masyarakat Terhadap Pemanfaatan Humus dari Tahura Untuk Pemanfaatan Pupuk Organik Bagi Areal Pertanian Masyarakat di Desa Tongkoh Kabupaten Karo Muhammad Zarkasyi Habiby; Budi Utomo; Afifuddin Dalimunthe
Peronema Forestry Science Journal Vol 4, No 3 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This study aimed to determine the direct perception of society towards organic fertilizers and forests as well as the way society treated farm wastes in the village of Dolat Rayat Tongkoh District of Karo. The method used in this research was a survey research methods. The results showed that the level of public perception in the Tongkoh village, Dolat Rayat District, Karo of the existence and functions of forests and the use of fertilizers at high category, respectively by 75 % and 93.75 %. Alternative most decisive election of respondents associated with the treatment of agricultural waste was to be burned with the percentage of 49.3 %.Key word: Forest , Organic Fertilizer , Public Perception
RESPON PERTUMBUHAN BIBIT SUKUN (Artocarpus communis Forst) PADA PEMBERIAN KOMPOSISI PUPUK KANDANG DAN KOMPOSISI TANAH YANG BERBEDA Vardos Ricky Doddy Silalahi; Budi Utomo; Afifuddin Dalimunthe
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Breadfruit plants (Artocarpus communis Forst) had significant importance in supporting the needs of the food source because it can support crop diversification efforts that serve as the non-rice food reserves. In connection with this, to rehabilitate in an area where rainfall is done with a bit of fertilizer that can hold water so it is more resistant to drought situation and breadfruit which incidentally is a plant that is able to live in dry conditions so it will be obtained an effective condition for application of fertilizers in the rehabilitation of degraded land, especially in drought conditions. This study aims to determine the ability of manure in retaining water and nutrient supply to the breadfruit plants. Manure with different doses will affect the binding of water and growing resistance breadfruit seeds.  This study used a completely randomized design (CRD) non factorial consisting of one treatment with four replicates with different doses of fertilizer. If ANOVA table is significant then proceed with further tests based on real distance test DMRT (Duncan's Multiple Range Test). Provision of multiple doses of chicken manure on breadfruit seeds significantly affected as height but did not significantly affect the increase in diameter. The highest breadfruit seeds survival skills at P8, while the lowest is in P0.Keyword : Artocarpus communis. Forst, Manure, Degraded Land
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
PEMANFAATAN FUNGI Aspergillus flavus, A. tereus DAN Trichoderma harzianum UNTUK MENINGKATKAN PERTUMBUHAN BIBIT Rhizophora apiculata DI DESA PULAU SEMBILAN KABUPATEN LANGKAT Monalia Hutauruk; Yunasfi Yunasfi; Mohammad Basyuni
Peronema Forestry Science Journal Vol 4, No 4 (2015): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Mangrove is a forest that it is affected by tides. Indonesia is one of countries that has the largest mangrove forest in the world. Nowdays, the area has been reduced due to the degradation of mangrove forests. This degradation can be addressed with rehabilitation. This study used the fungi of A. flavus, A. tereus and T. harzianum against R. apicuta seedlings which is one of the species used for the rehabilitation of mangrove forests. The research was conducted on August 2014 untill January 2015 using a completely randomized design (CRD) with A. flavus, A. tereus and T. harzianum treatments and with five replications. Results showed that treatment of T. harzianum provided seedlings, the best growth of R. apiculata where the average height of 16.06 cm, diameter of 0.676 cm, a leaf area of 259.68 cm2, and a total of 19 g dry weight compared to the control with average height of 10.06 cm, 0,619 cm of  diameter, leaf area of 146.64 cm2, and the total dry weight of 10.92 g.Key word: fungi, mangrove, Rhizophora apiculata, seedling
ANALISIS ASOSIASI DAUN SANG (Johannesteijsmannia altifrons) DENGAN JENIS-JENIS PALEM DI RESORT SEI BETUNG, TAMAN NASIONAL GUNUNG LEUSER, KABUPATEN LANGKAT, SUMATERA UTARA Amos Ferdinan Sihombing; Nelly Anna; 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

Daun Sang is an endemic species that can be found in Gunung Leuser National Park and Bukit Tiga Puluh National Park. This palm is thought to have associations with other palm. Where around Daun Sang grow there are palm types Lipai (Licuala spinosa), but not always around Lipai grow Daun Sang are. Daun Sang need shade to grow because these palm is sensitive to the sunlight. This study  aimed to analyze the association  of daun sang by some kind of palm that grows around in order to conservation and optimize the cultivation of the daun sang. The method used is a descriptive method with observation of the Daun Sang number and some kind of of palms around it done intentionally (purposive sampling). The method is performed by making 2 plot observations, each size is 100m × 100m,  then divided by making the sample plots of 20m × 20m. Observed data were processed using 2 x 2 contingency table, and then calculated by the chi-square test formulations and Jaccard index to calculate the extent of the association. three species of palm found in the study site there are pinanga speciosa, tetradactylus and Plectomiopsis Calamus sp. The results showed that daun sang are not associated with Pinanga speciosa. Association occurs between daun sang with the Calamus tetradactylus and daun sang with Plectomiopsis sp. The highest level of association occurs in Daun Sang and Calamus tetradactylus with maximum association index value of 1. The level of association between Daun Sang with Plectomiopsis sp. approaching the maximum value of the association index in 0.84.Key word : Daun Sang (Johannesteijsmania altifrons), Association Analysis, Ressort Sei Betung
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

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