Global Forest Journal最新文献_第2页

Analysis of land use (2013-2022) in the Gayo highlands, Aceh, Indonesia 印度尼西亚亚齐加约高地2013-2022年土地利用分析

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.13252

None Zulfan Arico, None Rahmawaty, None Delvian, None Hamdani Harahap, None Mohd Hasmadi Ismail

引用次数: 0

Panel products made of oil palm trunk bagasse (OPTB) and MMA (Methyl methacrylate)-styrofoam binder 面板产品由油棕干甘蔗渣(OPTB)和MMA(甲基丙烯酸甲酯)-聚苯乙烯泡沫粘合剂制成

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.13245

Arif Nuryawan, None Jajang Sutiawan, None Bayu Tirto Utomo, None Iwan Risnasari, None Rahmi Karolina, None Nanang Masruchin

{"title":"Panel products made of oil palm trunk bagasse (OPTB) and MMA (Methyl methacrylate)-styrofoam binder","authors":"Arif Nuryawan, None Jajang Sutiawan, None Bayu Tirto Utomo, None Iwan Risnasari, None Rahmi Karolina, None Nanang Masruchin","doi":"10.32734/gfj.v1i01.13245","DOIUrl":"https://doi.org/10.32734/gfj.v1i01.13245","url":null,"abstract":"The waste product left over from pressing or extracting oil palm trunk (OPT) for sugar purposes is known as oil palm trunk bagasse (OPTB). This residue contains mainly vascular bundles and small amount of parenchyma. These materials are potentially utilized for making panel products such as particleboard (OPTBparticleboard). Objective of this study was to evaluate physical mechanical properties of OPTB-particleboard. For preserving the durability, this work was intended to apply 15% mixture of methyl methacrylate (MMA) cured with Styrofoam as the binder with a ratio (w/w) of 3:1. OPTB-particleboard was made according to the Japanese Industrial Standard (JIS A5908: 2003) with a target density of 0.75 g/cm3 and dimensions of 25 x 25 x 1 cm3. Hot pressing was a condition set at a pressure of 30 kg/cm2 and a temperature of 160 °C for 15 minutes. Physical and mechanical properties were tested according to JIS A 5908:2003 standard. The results showed that physical and mechanical properties of the OPTB-particleboard did not meet the standard. The characteristics of OPTB still easily absorb water even though MMA-Styrofoam should hinder water ingress. Additionally, the poor quality of the OPTB-particleboard was primarily due to the binder's inadequate composition. Optimum values reached when IB, MOR, and MOE were 0.026 MPa, 6.69 MPa, and 892 MPa, respectively. Based on the analysis of variance, it can be concluded that there is no influence on the bottom, middle and upper parts of the origin of the OPTB except for the MOR.","PeriodicalId":479486,"journal":{"name":"Global Forest Journal","volume":"523 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134919816","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

Isolation and identification of cellulolytic fungi under Swietenia macrophylla, Mimusops elengi, and Polyalthia longifolia stands at the Universitas Sumatera Utara campus, Indonesia 印尼苏门答腊大学北ara校区大叶甜藤、长叶蜜菇和长叶蓼中纤维素分解真菌的分离和鉴定

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.13251

None Muhammad Zyldanvi Bahri, None Deni Elfiati, None Arida Susilowati, None Rizka Amelia

{"title":"Isolation and identification of cellulolytic fungi under Swietenia macrophylla, Mimusops elengi, and Polyalthia longifolia stands at the Universitas Sumatera Utara campus, Indonesia","authors":"None Muhammad Zyldanvi Bahri, None Deni Elfiati, None Arida Susilowati, None Rizka Amelia","doi":"10.32734/gfj.v1i01.13251","DOIUrl":"https://doi.org/10.32734/gfj.v1i01.13251","url":null,"abstract":"The Universitas Sumatera Utara has various types of trees scattered in the surrounding environment. Swietenia macrophylla, Mimusops elengi and Polyalthia longifolia are the three most common tree species found on campus. To maximize the potential for utilizing tree species on the Universitas Sumatera Utara campus, several efforts can be made, one of which is by exploring the presence of cellulolytic fungi. Cellulolytic fungi are fungi that are able to hydrolyze cellulose which can produce cellulase enzymes. This study aims to obtain the potential and identify cellulolytic fungi from the soil under Swietenia macrophylla, Mimusops elengi and Polyalthia longifolia stands. Sampling was taken by making 3 plots on each type of stand measuring 20 m x 20 m with a soil depth of 0 – 20 cm. In each plot, 5 sampling points were made. The soil taken from each type is then composed. Isolation of cellulolytic fungi was carried out using Carboxy Methyl Cellulose (CMC) media. The potenstial of cellulolytic fungi is obtain by calculating the cellulolytic index. All isolates obtained were identified morphologically down to the genus level. The result showed that the potency of the cellulolytic fungi ranged from 0.05 to 1.36. The identification results that the isolates included the genus Aspergillus and Trichoderma.","PeriodicalId":479486,"journal":{"name":"Global Forest Journal","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134919815","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

Analysis of business feasibility and trade system for rattan crafts in Rumbai district, Pekanbaru City 北干巴鲁市Rumbai区藤工艺品经营可行性及贸易体系分析

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.12971

Siti Latifah, None Agus Purwoko, None Sindy Hutapea

引用次数: 0

Analysis of the Tapanuli orangutan (Pongo tapanuliensis) population in other land use areas, Arse sub-district, South Tapanuli Regency 南塔巴努里县阿斯街道其他土地利用区塔巴努里猩猩种群分析

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.13249

None Samsuri, None Wanda Kuswanda, None Rizky Nasution, None Anita Zaitunah

{"title":"Analysis of the Tapanuli orangutan (Pongo tapanuliensis) population in other land use areas, Arse sub-district, South Tapanuli Regency","authors":"None Samsuri, None Wanda Kuswanda, None Rizky Nasution, None Anita Zaitunah","doi":"10.32734/gfj.v1i01.13249","DOIUrl":"https://doi.org/10.32734/gfj.v1i01.13249","url":null,"abstract":"Tapanuli Orangutan (Pongo tapanuliensis) is a globally critical species (critically endangered) due to the decreasing area of natural habitat. Orangutans can reach out of their natural habitat outside the forest and into community fields for feeding. Orangutans make the other land use not only a place to stopover but also a home range and living area marked by nests. The study aims to obtain information on the characteristics of nests and the estimated population of the Tapanuli orangutan (TO) in the other land-use area. This research method uses line transects placed by systematic sampling with a distance between lines of 3 km and population data analysis using calculations from the van Schaik formula. From the results of the 11 research lines, 14 nests were obtained consisting of 3 class B nests, 5 class C nests, 3 class D nests, and 3 class E nests. The characteristics of the most dominant nests were class C with the most preferred positions II and III and nest finding highest in Quercus maingayi tree. The research found that the density of the TO was eight individuals/1000 ha.","PeriodicalId":479486,"journal":{"name":"Global Forest Journal","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134919818","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

Identification of types, flowering of bee plants and honey production of Apis cerana in Aornakan I and Kutatinggi villages, Pakpak Bharat regency, North Sumatra 北苏门答腊 Pakpak Bharat 县 Aornakan I 村和 Kutatinggi 村蜜蜂种类、花期和蜂蜜产量的鉴定

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.13255

None Dwi Endah Widyastuti, None Untung Junedi Sianturi, None Hafizah Arinah

{"title":"Identification of types, flowering of bee plants and honey production of Apis cerana in Aornakan I and Kutatinggi villages, Pakpak Bharat regency, North Sumatra","authors":"None Dwi Endah Widyastuti, None Untung Junedi Sianturi, None Hafizah Arinah","doi":"10.32734/gfj.v1i01.13255","DOIUrl":"https://doi.org/10.32734/gfj.v1i01.13255","url":null,"abstract":"One of the influential factors in the success of beekeeping is the availability of bee feed. Beekeepers need to know the types of food sources for bees and have a map of the sources of nectar and pollen in their area. This will help in planning the management of their colony. This research was conducted to identify the types and flowering of bee feed plants (Apis cerana) and to determine honey production. In this study used exploratory survey methods and interviews. Based on the study's results, there were 17 identified types of bee feed sources from forestry plants, 13 identified plant species from crops and 6 identified plant species that produce flowers. The flowering schedule for honey bee feed plants in Pakpak Bharat Regency for Kaliandra plants blooms in February - July, for Durian plants blooms in March, April - October, and November for Coffee plants flowers in April and August. Honey production in Pakpak Bharat District has a different frequency of harvest and production each month. For April, 11 members produced 42 bottles of honey. For May, 10 members produced 55 bottles, where the size per bottle was 600 ml.","PeriodicalId":479486,"journal":{"name":"Global Forest Journal","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134919821","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

Life cycle assessment in Indonesia forestry sector: A scoping review 印度尼西亚林业部门的生命周期评估:范围审查

Global Forest Journal Pub Date : 2023-07-29 DOI: 10.32734/gfj.v1i01.13254

None Budi Mulyana, None Mohamed Hemida

{"title":"Life cycle assessment in Indonesia forestry sector: A scoping review","authors":"None Budi Mulyana, None Mohamed Hemida","doi":"10.32734/gfj.v1i01.13254","DOIUrl":"https://doi.org/10.32734/gfj.v1i01.13254","url":null,"abstract":"Life cycle assessment (LCA) is a tool to analyze the environmental impact of the process of production or services. Forest provides enormous environmental benefits through ecosystem services, but some forest management activities (nursery, thinning, pruning, pest control, and harvesting) have produced some negative impacts, such as pollution from machine utilization, fertilizer and pesticide, and water consumption. Furthermore, this paper describes the application of LCA in the forestry sector in Indonesia. We used the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) approach to identify, screen, and inclusion the relevant articles. Identified 35 articles related to life cycle assessment in Indonesia's forestry sector, and only 11 articles were eligible for content analysis. The findings have shown that the research trend on LCA in the Indonesia forestry sector started in 2009, but since 2015 the number of publications has been relatively constant. The functional unit used in LCA varied (mass, energy, time, and area size). The system boundary also varied from cradle to gate, gate to gate, and cradle to grave. The environmental impacts found in the articles were global warming potential, acidification, and eutrophication parameters. In conclusion, LCA has been applied in Indonesia’s forestry sectors (roundwood production, furniture industries, biomass and wood pellet production). We propose that the future research direction is specific research in the site forest operation, such as seedling production, forest maintenance, and forest harvesting activities. We also recommend a more varied research scope to elaborate the LCA in private forest and non-timber forest product processes.","PeriodicalId":479486,"journal":{"name":"Global Forest Journal","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134919823","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