Journal of Sylva Indonesiana最新文献_第4页

Study of policy determination to create a healthy watershed: A case study of Lepan watershed in Langkat district, North Sumatera, Indonesia 创建健康流域的政策决定研究:以印度尼西亚北苏门答腊朗吉县勒班流域为例

Journal of Sylva Indonesiana Pub Date : 2022-02-28 DOI: 10.32734/jsi.v5i01.6222

Samsuri, Yunus Affifuddin, Faisal Ridho

引用次数: 0

Effects of Gamma Ray Irradiation to Induce Genetic Variability of Teak Planlets (Tectona grandis Linn. F.) 射线辐照对柚木植株遗传变异的影响。f .)

Journal of Sylva Indonesiana Pub Date : 2022-02-28 DOI: 10.32734/jsi.v5i01.6166

Ahmad Parlaongan, Supriyanto, Arum Sekar Wulandari

{"title":"Effects of Gamma Ray Irradiation to Induce Genetic Variability of Teak Planlets (Tectona grandis Linn. F.)","authors":"Ahmad Parlaongan, Supriyanto, Arum Sekar Wulandari","doi":"10.32734/jsi.v5i01.6166","DOIUrl":"https://doi.org/10.32734/jsi.v5i01.6166","url":null,"abstract":"Teak planlets (Tectona grandis) of Salomon clones were irradiated by gamma rays to induce genetic variability for growth improvement. The objectives of this research were to analyze the radiosensitivity of T. grandis Salomon clones by gamma ray irradiation and to analyze the genetic variations using Random Amplified Polymorphic Deoxyribonucleic Acid (RAPD). For those purposes, teak planlets were irradiated using gamma rays at 5 different dosages, those were 0 Gy, 10 Gy, 20 Gy, 30 Gy, and 40 Gy. Lethal doses50 (LD50) and reduced doses50 (RD50) were obtained using Curve-fit Analysis. Furthermore, the irradiated planlets were subcultured on medium MS + 0.1 kinetin (M1V0) the surviving M1V0 plantlets were multiplied to MS + 0.1 kinetin, so it is obtained the M1V1 generation. Genetic variation of the mutant was molecularly analyzed using RAPD methods and the variability was calculated using Analysis of Molecular Variance (AMOVA). Results of this research showed that lethal doses50 (LD50) and reduced doses50 (RD50) values were obtained at 24.5 Gy and 7.85 Gy, respectively. It includes genomes of small size and a small number of genomes. The genetic variation of mutant individuals in among and within the treatment of gamma irradiation was 16% and 84% according to AMOVA. It means that the dominant effect of genetic material caused genetic variation in mutant M1V1 generations. This dominance of genetic material could be caused by the response combination of tissue culture treatment and genetic factors that had the potency to be used as materials to select desired clones in the next stage.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117156926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Performance Assessment Analysis of Forest Management Unit of Region I Stabat. North Sumatera Province 一区森林经营单位绩效考核分析。北苏门答腊省

Journal of Sylva Indonesiana Pub Date : 2022-02-28 DOI: 10.32734/jsi.v5i01.6257

Rinaldy saleh Saleh, OK Hasnanda Syahputra

{"title":"Performance Assessment Analysis of Forest Management Unit of Region I Stabat. North Sumatera Province","authors":"Rinaldy saleh Saleh, OK Hasnanda Syahputra","doi":"10.32734/jsi.v5i01.6257","DOIUrl":"https://doi.org/10.32734/jsi.v5i01.6257","url":null,"abstract":"The Forest Management Unit (FMU/KPH) Region I Stabat, Langkat Regency, North Sumatra Province has an important role in realizing success and forest management at the site level. The description of the performance of FMU development is required by policy makers as part of the policy evaluation. In the evaluation of the policy, an assessment of the substance, implementation, and impact of the policy can be carried out. Policy evaluation is functional, with the intention of providing input for process improvement and continuous improvement of performance measures. However, there are still problems in the field that must be addressed immediately so that forest resource management can run well, such as the unfinished process of boundary demarcation reconstruction, regional stability, investment mechanisms and so on. The purpose of this research is to assess the performance of the successful level of forest management implementation at the site level. The method used in the assessment is the analysis of the components of the criteria and indicators developed by Forest Watch Indonesia (FWI) Version 2.0, document verification, and in-depth interviews. The results of the assessment show that the FMU Region I Stabat has a fairly good performance in carrying out forest management in accordance with its function as a forest resource manager at the site level. Several criteria need to be strengthened so that these criteria can run well. These criteria include regional stability and investment mechanisms.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116335304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-temporal Satellite Images Analysis for Assessing and Mapping Deforestation in Um Hataba Forest, South Kordofan, Sudan 苏丹南科尔多凡州乌姆哈塔巴森林毁林评估与制图的多时相卫星图像分析

Journal of Sylva Indonesiana Pub Date : 2022-02-28 DOI: 10.32734/jsi.v5i01.7504

Budi Mulyana, Emad H.E. Yasin, Om Habiba Kamil

{"title":"Multi-temporal Satellite Images Analysis for Assessing and Mapping Deforestation in Um Hataba Forest, South Kordofan, Sudan","authors":"Budi Mulyana, Emad H.E. Yasin, Om Habiba Kamil","doi":"10.32734/jsi.v5i01.7504","DOIUrl":"https://doi.org/10.32734/jsi.v5i01.7504","url":null,"abstract":". Sudan is a hot spot for deforestation, despite the increasing awareness of deforestation and its consequences. Consequences are related to increased emissions of greenhouse gases, water pollution, and loss of biodiversity. However, precise information on its forests' current state is very limited. Therefore, to intervene support of existing resources effectively, it is important to have a better understanding of the process to take place in the country and impact those resources. The objective of this study is assess and map Land use Land cover (LULC) change and analyze the anthropogenic factors causing it in Um Hataba forest, South Kordofan State. The study utilized two-free cloud images (TM 2000 and Sentinel-2 in 2018), field surveys, and questionnaires to analyze the decrease in forest cover. The results indicated there were a decrease in vegetation cover on wadis (clay soil) from 20.98% in 2000 to 15.85% in 2018 and vegetation on sandy soil decreased from 30.29% in 2000 to 30.13% in 2018. While mixed shrubs and grassland increased from 28.60% in 2000 to 33.20% in 2018 of the total area under study and the rainfed agricultural area increased from 20.13% in 2000 to 20.82% in 2018. The main factors of degradation and fragmentation as the expansion of mechanized are rain-fed agriculture, felling of trees and woodcutting, worse grazing activities, and construction of infrastructure. Information garnered from this study can provide a good basis for forest rehabilitation programs and can also be used for developing proper management plans that consider the needs of the communities utilizing the forest.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126308015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Study of the Potential and Development of Riam Sabada Natural Tourism Attractions in Sebatih Village Sengah Temila District Landak Regency West Kalimantan Province 西加里曼丹省兰达县Sengah Temila区Sebatih村Riam Sabada自然旅游景点的潜力和开发研究

Journal of Sylva Indonesiana Pub Date : 2022-02-28 DOI: 10.32734/jsi.v5i01.6345

Sesilia Indah Saptri, Slamet Rifanjani, Muflihati

{"title":"Study of the Potential and Development of Riam Sabada Natural Tourism Attractions in Sebatih Village Sengah Temila District Landak Regency West Kalimantan Province","authors":"Sesilia Indah Saptri, Slamet Rifanjani, Muflihati","doi":"10.32734/jsi.v5i01.6345","DOIUrl":"https://doi.org/10.32734/jsi.v5i01.6345","url":null,"abstract":"Riam Sabada is one of the natural attractions in Landak Regency in the form of water flow over rocks with unspoiled nature and flora and fauna that potential to become tourist attractions. A potential assessment is carried out to find out whether the tourism object is the potential to be developed or not. Riam Sabada is one of the natural attractions in the Landak Regency, West Kalimantan Province. The study was conducted in October 2020 using observation and interview methods to 10 respondents selected by purposive sampling, which was determined intentionally by researchers. The respondent’s criteria were community leaders, had ever visited tourist objects, and had knowledge about Riam Sabada tourism. Data were analyzed using Microsoft Excel. Riam Sabada's ODTWA potential assessment results in a score of 460.27, which was included in the classification as possible enough to be developed. The unspoiled cascade area was surrounded by shady trees, large rocks, and flora and fauna such as civets, birds, melaban, and orchids. Riam Sabada's natural tourism development strategy was to implement policies that support an aggressive strategy (SO strategy) where the strategy was in a favorable position because it maximized the strengths and opportunities of the tourist attraction. However, to support development, it was necessary to build facilities and infrastructure and to study the carrying capacity of the Riam Sabada tourist attraction","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131815377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Utilization of Unmanned Aerial Vehicle (UAV) Technology for Mapping Mangrove Ecosystem 无人机技术在红树林生态系统测绘中的应用

Journal of Sylva Indonesiana Pub Date : 2021-08-30 DOI: 10.32734/jsi.v4i02.6149

A. Ayub, Feri Nugroho, A. Suci, A. Anggoro

{"title":"Utilization of Unmanned Aerial Vehicle (UAV) Technology for Mapping Mangrove Ecosystem","authors":"A. Ayub, Feri Nugroho, A. Suci, A. Anggoro","doi":"10.32734/jsi.v4i02.6149","DOIUrl":"https://doi.org/10.32734/jsi.v4i02.6149","url":null,"abstract":"Technological developments, especially in remote sensing in mangrove mapping are growing. One of them is the use of Unmanned Aerial Vehicle (UAV) as a vehicle for capturing aerial photo data. This study aims to map the mangrove ecosystem in order to find out spatial information with UAV technology and to identify mangrove species, distribution, and associations. The ground survey was conducted on 02 until 04 May 2019 in North of Lancang Island, Seribu Islands, DKI Jakarta Province. The mangrove data collection was carried out in four stations with marking, tracking the mangrove area and drone flights for taking aerial photo data. Based on the research, it was found that the mangroves were in good condition with an area of around 4 hectares, consisting of Rhizophora mucronata. However, there is a lot of waste around the mangrove ecosystem, especially inorganic waste in the form of plastic. Where the presence of garbage can cover the roots of the mangrove so that it can affect respiration and cause death in mangroves. The application of UAV technology that is integrated with GIS in mangrove ecosystem mapping is expected to be an alternative in extracting mangrove databases for future coastal ecosystem management.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114177080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

The Effect of The Addition of Promoting Microbes (PROMI) In Making Media of Pleurotus ostreatus 添加促进微生物(PROMI)对平菇培养基制作的影响

Journal of Sylva Indonesiana Pub Date : 2020-08-31 DOI: 10.32734/jsi.v3i02.2844

Karmila, I. Taskirawati, Baharuddin

{"title":"The Effect of The Addition of Promoting Microbes (PROMI) In Making Media of Pleurotus ostreatus","authors":"Karmila, I. Taskirawati, Baharuddin","doi":"10.32734/jsi.v3i02.2844","DOIUrl":"https://doi.org/10.32734/jsi.v3i02.2844","url":null,"abstract":"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. 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. The provision of PROMI as much as 0.5 g and 0.75 g also influences the control in terms of harvest time.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131573771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Mapping of Degraded Soil Properties in Gunung Leuser National Park Gunung Leuser国家公园退化土壤性质制图

Journal of Sylva Indonesiana Pub Date : 2019-08-31 DOI: 10.32734/jsi.v2i2.994

Paranita Asnur, A. S. Thoha, D. Elfiati

{"title":"Mapping of Degraded Soil Properties in Gunung Leuser National Park","authors":"Paranita Asnur, A. S. Thoha, D. Elfiati","doi":"10.32734/jsi.v2i2.994","DOIUrl":"https://doi.org/10.32734/jsi.v2i2.994","url":null,"abstract":"Deforestation that occurs causes a decrease in soil fertility. Knowing soil fertility in the landscape will provide information on land management. The nature of the soil differs from one point to another, therefore it is necessary to map the properties of the soil. The purpose of this study is to map the distribution of the properties of forest land in areas that have been degraded. The land is a former privately-owned oil palm plantation in the Gunung Leuser National Park (TNGL) forest. The study uses a continuous grid interpolation method, thus forming polygons of soil properties. The soil types are Inseptisol an Ultisol. The results of the study show that most of them belong to the type of soil that is finely textured so that erosion can easily occur if surface runoff occurs in areas that have been exposed. The soil water content range that has the widest area is the range 26.98 - 29.50% with an area of 14.38 ha (42.91% of the research area). The range of land capacity has the widest area, namely the range 42.24 - 49.32% with an area of 13.32 ha (39.76% of the research area). Low organic matter content and acidic soil pH. Based on the results of these studies, the land in the research area is less fertile. However, restoration efforts are very possible because many tree species are adaptive with low soil fertility.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124792936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Land Cover Change and Deforestation Characteristics in The Management Section of National Park (MNSP) VI Besitang, Gunung Leuser National Park 国家公园(MNSP)管理区土地覆盖变化与毁林特征研究VI .古农勒伊泽国家公园贝斯塘

Journal of Sylva Indonesiana Pub Date : 2019-08-31 DOI: 10.32734/jsi.v2i2.1120

Nurdin Sulistyono, B. Ginting, Pindi Patana, Arida Susilowati

{"title":"Land Cover Change and Deforestation Characteristics in The Management Section of National Park (MNSP) VI Besitang, Gunung Leuser National Park","authors":"Nurdin Sulistyono, B. Ginting, Pindi Patana, Arida Susilowati","doi":"10.32734/jsi.v2i2.1120","DOIUrl":"https://doi.org/10.32734/jsi.v2i2.1120","url":null,"abstract":"Gunung Leuser National Park is one of the world heritage forest located in Indonesia where the Government of Indonesia and the International world give serious attention to the condition of the area. Unfortunately the forest area of Leuser Mountain National Park significantly decreasing by years due to deforestation.. This study aims to determine land cover changes, the rate of deforestation and spatial characteristics of deforestation in the National Park Management Section Region VI Besitang Gunung Leuser National Park. Classification method was maximum likelihood classification (MLC). The results of this study indicated land cover changes from 2008 to 2016 at SPTN Region VI Besitang TNGL that forest has increased from 104.741,15 ha to 107.336,03 ha, mixed dryland agriculture has decreased from 3.690,40 ha to 2.498,53 ha, Palm oil decreased from 526,96 ha to 88,40 ha, and open land increased from 3.116,80 ha to 3.572,93 ha. The rate of deforestation in this area during that period is 221,14 ha/year or 1.769,12 ha. Factors that have a close correlation with the area of deforestation are the number of population and the number of families farmer; distance from road, river, settlement and plantation; height class, and slope class.","PeriodicalId":412108,"journal":{"name":"Journal of Sylva Indonesiana","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132050205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Application of Silviculture Techniques on White Jabon (Neolamarckia cadamba Miq) by The Farmers of Community Forest in Konawe Regency, Southeast Sulawesi 苏拉威西东南部科纳威县社区森林农民造林技术在白桦桉上的应用

Journal of Sylva Indonesiana Pub Date : 2019-08-31 DOI: 10.32734/jsi.v2i2.993

F. Tuheteru, Husna, Inggrik Valentin Rare, A. Arif, Albasri

引用次数: 1