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Journal of Sylva Indonesiana

Jsi
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Published by Universitas Sumatera Utara

ISSN : 26225093 EISSN : 26225158 DOI : 10.32734

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences

Journal of Sylva Indonesiana (JSI) is an international peer-reviewed biannual journal (February and August) published by TALENTA Publisher, Universitas Sumatera Utara and managed by Faculty of Forestry, Universitas Sumatera Utara. It is dedicated to interchange for the articles of high-quality research in the field of forestry and natural resources including Forest Management, Social And Economic of Forestry, Forestry Policy, Sylviculture, Forest Ecology, Plantation Forestry, Biotechnology, Forest Conservation, Biodiversity And Natural Resources, Wood Sciences And Technology, Biocomposite, and Non Timber Forest Product. The journal publishes state-of-art scientific articles in fundamental theory, experiments and simulation, as well as applications, with a systematic proposed method, sufficient review on previous works, expanded discussion and concise conclusion. As our commitment to the advancement of science and technology, the Journal of Sylva Indonesiana (JSI) follows the open access policy that allows the published articles freely available online without any subscription.

Arjuna Subject : -

Articles 136 Documents

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Conservation Species of NTFPs Through Agroforestry for Community Livelihoods in Sikka, East Nusa Tenggara Njurumana, Gerson N; Dona Octavia
Journal of Sylva Indonesiana Vol. 3 No. 01 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Conservation and development of non-timber forest product (NTFPs) commodities in East Nusa Tenggara (NTT) are urgently needed. NTFPs are a source of livelihood for the rural communities around the forest areas. NTFPs development around the forest areas is needed as a means to create livelihoods and reduce poverty. The management strategy for forest areas based on integrating conservation and community welfare improvement is needed. The research aims to determine the NTFPs potency in Sikka Regency and the socio-economic conditions of NTFP farmers and to initiate the conservation and development of NTFPs based on the agroforestry approach. The research was conducted through literature review, secondary and primary data collection through surveys, interviews and field observations. The results of the study showed that tamarind (Tamarindus indica L.), candlenut (Aleurites moluccana (L) Willd.), areca nut (Areca cathecu L.), and betel (Piper betle L.) is the major of NTFP commodities in Sikka district. The socio-economic conditions of NTFP farmers on surrounding farmer are not prosperous yet, and highly depend on the sustainability of NTFP production. Community initiatives to conserve and regenerate NTFPs through agroforestry need to be improved, especially in improving the rate of plant growth. Technical assistance to increase community capacity in conservation and development of NTFPs around forest areas and private land is still needed.

The Study of Silviculture System for Selective Cutting and Line Planting (TPTJ) and Indonesian Selective Cutting and Planting (TPTI) Application at PT Intracawood Manufacturing Bulungan Regency, North Kalimantan M. Taufan; Susilowati, Arida
Journal of Sylva Indonesiana Vol. 3 No. 01 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Selective Cutting and Line Planting (TPTJ) silvicultural systems and Indonesian Selective Cutting and Planting (TPTI) are two of the five silvicultural systems that have been determined by the Ministry of Forestry Regulation No. P.11 / Menhut-II / 2009 juncto P.65 / Menhut-II / 2014 concerning silvicultural systems in the area of timber forest product utilization permits (IUPHHK) in production forests. Three other silvicultural systems based on the regulation are the Gap Logging silviculture system, the Fully Made Rejuvenation System, and the Multi Silviculture System. This study aims to examine the implementation of the TPTJ and TPTI systems in the PT Intracawood Manufacturing (PT Intraca) area, Bulungan Regency, North Kalimantan. The methodology of this research is through the approach of growth analysis, comparison of stand increment, observation of environmental conditions, interviews and literature study. Based on the field research, it was found that the diameter increments of Shorea leprosula, Shorea dasyphila, and Shorea parvifolia were greater in the TPTJ system compared to TPTI. However, the TPTI silviculture system at PT Intraca is easier to apply in the field than the TPTJ silviculture system. The TPTJ system has become less effective because planting in the TPTJ system has been carried out by making a 3-meter wide track with a length of approximately 1 km in a plot and if there is potential for the wood to become ineffective. In the area of PT Intraca, to improve the effectiveness of the TPTJ system a mosaic system is used where the planting path is made only in areas with less potential and representative for planting. The types of plants planted in the TPTJ system are far superior, perspective, and are faster than the types of plants in the TPTI system. Planting/enrichment in the TPTI system is easier because it does not need to make a planting path. Planting with seedlings from the extraction is only a transfer from the growth of tillers from areas with an excessive potential for tillers.

Utilization of Leaf Litter as Growth Media for Suren (Toona sureni Merr.) Rhizosphere Fungi Isolates Gusmiati; Muh. Restu; Siti Halimah Larekeng; Budirman Bachtiar; Muhammad Bima Akzad
Journal of Sylva Indonesiana Vol. 3 No. 01 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Leaf litter or organic matters can decompossed by microorganisms like fungi.This study aims to determine the ability of growth and the rate of decomposition of Suren (Toona sureni Merr.) rhizosphere fungi isolates on various organic media. The testing process was carried out at the Biotechnology and Tree Breeding Laboratory, Faculty of Forestry, Hasanuddin University, Makassar. The research method consisted of making fungi growing media, rejuvenating isolates and making organic media from teak leaf litter (Tectona grandis), Jabon (Anthocephalus cadamba), and Mahogany (Swietenia macrophylla). The highest growth of mycelium was found in Fusarium sp. The growth of the five best fungi isolates in the formulation of mahogany leaf litter and the highest average decomposition rate in the combination treatment of mahogany leaf litter and Fusarium sp.

The Role of MycoSilvi, Lime and Compost on The Growth of Balsa (Ochroma bicolor Rowlee.) Seedling in Post Silica Sand Mine Media Wilarso, Sri; Putri Maharani; Andi Sukendro; Cahyo Wibowo
Journal of Sylva Indonesiana Vol. 3 No. 01 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Problems arising from silica sand mining are decreasing soil fertility, as well as the presence of high heavy metals such as Fe and Al, which inhibits the growth of revegetation plants. The purpose of this study was to analyze the response of the growth of balsa seedlings (Ochroma bicolor Rowlee.) on silica sand post-mining media treated with MycoSilvi, compost, and lime and determine the most optimal combination of MycoSilvi, compost, and lime treatment. This study uses a completely randomized design (CRD) with a split-plot design with 3 treatment factors, namely the addition of MycoSilvi, compost, and lime. Each treatment consisted of five replications. The results showed that the planting media that were not treated (control) was not able to support the growth of balsa seedlings. The interaction of MycoSilvi, compost, and lime significantly affected the height, diameter, biomass, and percentage of mycorrhizal colonization parameters, and significantly affected the plant chlorophyll content. The combination of MycoSilvi type 1 treatment, namely Glomus mosseae and lime (C0K1M1) type, resulted in the highest total growth rate, diameter, biomass, and colonization percentage compared to other treatments. The addition of lime and compost to the growth medium can reduce the degree of mycorrhizal dependency of balsa seedling.

List of Content Vol. 03, No. 01, February 2020 February 2020, Vol 3 No 01,
Journal of Sylva Indonesiana Vol. 3 No. 01 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Vol. 03, No. 01, February 2020

Mapping of Damar Mata Kucing (Shorea javanica) Plus Trees in Repong Damar Penengahan Village, Karya Penggawa Sub District, West Pesisir Regency, Lampung Province Muhammad Ridwan; Afif Bintoro; Rahmat Safeâ€™i
Journal of Sylva Indonesiana Vol. 4 No. 01 (2021): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

The distribution of seed and plus tree sources of damar mata kucing (Shorea javanica) in Repong Damar village is important to provide good quality of seeds. Currently, the existence of seed source of damar mata kucing is still unknown. Based on these conditions, it is necessary to mapping the seeds source or damar mata kucing plus trees. This study aims to analyze the plus tree map distribution using geographic information systems. This research was conducted using a survey method to determine the coordinates based on the growth location characteristics. Data analysis was performed using geographic information systems. The results showed that there were 24 plus trees (17.5%) of the total population studied and distributed in 3 location, namely east, north and west part. The plus tree distribution is mostly in the eastern part of 58.3%, the northern part is 20.8%, and the western part is 20.8%. The growth location conditions in the eastern part has a slope of 5 - 15%, with an altitude of 41 - 121 m.asl. In the western part it has a slope of 5 - 7%, with an altitude of 40 - 73 masl and the northern part has a slope of 5 - 15%, with an altitude of 35 - 174 masl.

The Effect of The Addition of Promoting Microbes (PROMI) In Making Media of Pleurotus ostreatus Karmila; Ira Taskirawati; Baharuddin
Journal of Sylva Indonesiana Vol. 3 No. 02 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

In making oyster mushroom growing media, one of the stages that must pass is composting of growing media (baglog). At this stage, it takes a week or more to compile the media, so the media is ready to be inoculated by the fungus. This long composting time, economically slow down production in the cultivation of oyster mushrooms. Thus, using an activator to speed up the composting process is often done. During this time, the most widely used activators to shorten composting time is Effective Microorganism (EM4). In this study, another type of activator with the same function as EM4 was tried, namely Promoting Microbes (PROMI). The purpose of this study to determine the effect (dose) compromise on the making of oyster mushroom growing media to mycelium growth time, pinhead growth time; harvest time; the number of the fruiting body, and the weight of fresh mushrooms.Â The raw material used candlenut wood sawdust (Aleurites moluccana Willd) in the making of media. The method used in this study is the making of growing media, composting, sterilization, inoculation of the fungus, and maintenance. Growing media consisted of sawn wood sawdust, PROMI, bran, CaSO4, CaCO3, and water. The treatment used is the addition of compromise to the growing media before composting. The doses of PROMI given are as follows: 0 g (P1); 0.25 g (P2); 0.5 g (P3), and 0.75 g (P4), each of which dissolved in 200 ml of water. This study's results indicate that different PROMI when mixing raw materials influences the time of mycelium closure in growing media and the time of harvesting mushroom fruit bodies. For the time of mycelial closing, giving as much as 0.5 g, PROMI has different control effects.Â The provision of PROMI as much as 0.5 g and 0.75 g also influences the control in terms of harvest time.

Chemical Compounds and Decomposition Process from Four Species Leaf Litter As a Source of Organic Matter Soil in Anggori Education Forest, Manokwari Aditya Rahmadaniarti; Wolfram Y. Mofu
Journal of Sylva Indonesiana Vol. 3 No. 02 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Decomposition is a simple change of physical and chemical processes by soil microorganismsâ€”the rate of decomposition process influenced by climate and litter quality factors. Litter content of chemical compounds is essential to determine the litter's quality so that it can be estimated the decomposition process. Leaves litter of Magnolia tsiampacca, Intsia bijuga, Cinnamomum cullilawan, and Aglaia sp., were collected and analyzed for their chemical compounds. Based on lignin and nitrogen content (L/N) value, Cinnamomum cullilawan have the fastest decomposition process. On the contrary, Intsia bijuga has low litter quality, so that has the slowest decomposition process. However, it has the lowest lignin content and high polyphenol content. Our research found that four observed species were able to be used as sources of soil organic matter, although the litter quality is relatively low.

The Potential Study Of Segenter Waterfall As A Tourist Destination In The Tahura Nuraksa Hadijah Putri; Andi Chairil Ichsan; Budhy Setiawan
Journal of Sylva Indonesiana Vol. 3 No. 02 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Nuraksa Tahura is an area that has potential to develop as tourist destination with its natural waterfall Segenter. For its development, same effort were need for the waterfall. This study aims to determine the feasibility of Segenter waterfalls, its development strategies and future development solution. The research were conducted through data collection, observation, interviews, Focus Group Discusion. The data were analyzed using natural tourist attraction Guidelines of Director General of Forest Protection and Nature Conservation 2003 and SWOT analysis. The results of the research showed that Segenter waterfall is feasible to be used as a tourist destination. The development is using the SO strategy those were utilizing its opportunities with the own potential by the Nuraksa Tahura region.

Saga (Adenanthera pavonina Linn) Seeds Milk As An Alternative Source Of Protein From Tree Species Novia Dwitanti; batubara, Ridwanti; Elisa Julianti; Latifah Hanum; Wulan Syahputri
Journal of Sylva Indonesiana Vol. 3 No. 02 (2020): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Saga seeds derived from saga (Adenanthera pavonina Linn) trees belongs to the family Fabaceae (Leguminosae-Mimosaceae), have potential as a source of protein.Â This research aims to obtain information about the potential of saga seeds milk as alternative milk based on processing and flavor enhancements.Â The method of testing saga seeds milk protein using the determination of N-Total by the Semi-Micro Kjeldahl method. The consumer preference level test is carried out with a hedonic test in the form of assessment based on the color, aroma, and taste parameters.Â The results of the saga seeds milk protein test results with the addition of 150 mL of water and cooking time for 10 minutes contain protein levels 1.19% Â± 0.16.Â Organoleptic test results showed that saga seeds milk with the addition of 200 mL of water, cooked for 10 minutes with strawberry flavor had the highest score with an average color of 3.72 Â± 0.94, aroma 3.96 Â± 0.90 and taste 3, 96 Â± 0.90.

Page 3 of 14 | Total Record : 136

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Editorial Address Campus 2 USU Bekala, Deli Serdang, North Sumatera, 20353, Indonesia

Location Kota medan, Sumatera utara INDONESIA

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Contact Name
Moehar Harahap

Contact Email
mhr_mrghy@usu.ac.id

Phone
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Journal Mail Official
jsi@usu.ac.id

Editorial Address
Campus 2 USU Bekala, Deli Serdang, North Sumatera, 20353, Indonesia

Location
Kota medan,

Sumatera utara

INDONESIA