IJEMS Indonesian Journal of Environmental Management and Sustainability最新文献

{"title":"Assessment of Farmer’s Tree Preferences and Their Seasonal Frost Management Practices in Frost-Affected Highlands of Eastern Ethiopia","authors":"Goremsu Getachew, Daba Bogale, A. Tesfaye","doi":"10.26554/ijems.2023.7.2.38-46","DOIUrl":"https://doi.org/10.26554/ijems.2023.7.2.38-46","url":null,"abstract":"Deforestation, land degradation, and low survival of planted seedlings are serious problems in highland Ethiopia. To address these problems, different land management practices such as afforestation and conservation program have been implemented; however, the success to date limited due to environmental stress and insufficient post-planting care. Therefore, the objective of this study was to investigate farmer’s tree needs and their traditional knowledge of seasonal frost management practices in selected frost-affected highlands of Eastern, Ethiopia. A total of 111 households were randomly selected for interviews on farmer’s tree species preference, frost management practices, and the causes of seedling mortality in the study area. Furthermore, key informant interviews and focus group discussions were used to collect the data. Descriptive statistics were used to analyze the data. The results confirm that season frost (55.6%) followed by free grazing (22.2%), inappropriate species site match (11.1%), and inappropriate planting time (5.6%) were major causes of seedling mortality in the study area. Organic mulch, plant cover, smoking, watering, and manuring were seasonal frost management practices applied by farmer’s to enhance seedlings’ survival in the study areas. However, this indigenous knowledge should be encouraged by the government through improved research, and extension services, to enhance seedlings’ survival in the study areas as well as to introduce it in different frost-prone highlands of Ethiopia. Moreover, species such as Eucalyptus globulus’ Labill, Cupressus lusitanica Mill., Juniperus procera Hochst. ex Endl., Hagenia abyssinica a (Bruce) J.F.Gmel, and Podocarpus falcatus (Thunb.) Mirb. (syn. P. gracilior Pilg.), were suggested as frost-tolerant species in the study area. Therefore, it is recommended that planting these tree species through research and campaign is essential to reduce land degradation in the frost-affected highlands area of the country, particularly in the study area.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86772969","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}

{"title":"Biodegradable Plastics: Biodegradation Percentage and Potential Microplastic Contamination in Seawater","authors":"Muhammad Aditya Permana, H. Widjajanti, D. Rohendi","doi":"10.26554/ijems.2023.7.2.74-79","DOIUrl":"https://doi.org/10.26554/ijems.2023.7.2.74-79","url":null,"abstract":"Increasing plastic production, which causes the problem of plastic garbage polluting the oceans, has increased the use of biodegradable plastics to address the problem. However, it is still debatable how much microplastic contamination it can cause. So, this study aims to determine the proportion of biodegradable plastics in the marine environment, identify the microplastics it produces, and analyze the relationship between the two. Seawater sampling is located in the Bangka Strait. The research was conducted in the Genetics and Biotechnology Laboratory, Department of Biology, Sriwijaya University. The biodegradable plastic test material used was made from a mixture of polyhydroxyalkanoates (PHA) and starch. Biodegradation test method using standard ASTM D6691-17 with respirometry system design. The stage of microplastic identification is carried out through filtration with a 4.75 mm-size filter; density separation using ZnCl2 solution and Whatman No. 1 filter paper; as well as visual observation of microplastics under a microscope. last Pearson Correlation analysis with bootstrap to see the relationship of the percentage of biodegradation with microplastics. The results obtained in this study were the percentage of biodegradable plastic (26.5±1.4%) and positive control kraft paper (33.2±4.2%) for 70 days, which produced 9 microplastic particles from biodegradable plastic with fragment and film types. Correlation analysis concluded that there was no relationship between the percentage of biodegradation and the microplastics produced.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"86 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83754666","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}

{"title":"Evaluation of Wanggu Watershed Carrying Capacity on Water System Indicators in Southeast Sulawesi, Indonesia","authors":"Kahirun, La Baco Sudia, La Gandri","doi":"10.26554/ijems.2023.7.2.62-73","DOIUrl":"https://doi.org/10.26554/ijems.2023.7.2.62-73","url":null,"abstract":"The water system or hydrological indicators determine the good and bad of a watershed’s carrying capacity. The hydrological indicators include discharge fluctuations, annual flow coefficient, sediment load, flood frequency, and water use index. The purpose of this study was to evaluate the carrying capacity of the Wanggu watershed based on hydrological indicators. The method used is the score and weight method for all hydrological indicator data in accordance with the watershed evaluation guidelines for hydrological indicators. The research data is sourced from primary data and secondary data. Primary data comes from direct observation, while secondary data comes from agencies related to this research. Data analysis using Microsoft Excel in monthly and annual data analysis by producing tables and figures. The results of this study indicate that fluctuations in discharge or the regime coefficient of the Wanggu River Basin are 96.45 which are classified as high, as well as erosion and surface runoff, namely sediment load conditions of 19.73 which are also included in the high category. While the value of the annual flow coefficient is 0.32, the average frequency of flooding every year occurs once in two years and the water use index is 0.69. The three parameters are categorized as being in the middle class. From the accumulated weights and scores of all water system indicator parameters, a value of 111.25 is included in the bad class category. So the Wanggu watershed has a poor carrying capacity value from the water management indicator.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75072208","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}

{"title":"Assessment of Toxicological Effects of Triclosan on Microbes, Plants, and Genetic Material in Cells","authors":"","doi":"10.26554/ijems.2023.7.2.56-61","DOIUrl":"https://doi.org/10.26554/ijems.2023.7.2.56-61","url":null,"abstract":"Triclosan is an antiseptic ingredient that is commonly found in numerous personal care items that may end up in the environment. Their ecotoxicological profile, however, is still unknown. The current research aims to determine the toxicity of triclosan on E. coli, Vigna radiata and Crotalaria juncea seeds, and Allium cepa roots. The analyses include toxicity assays for microbes, phytotoxicity, and cytogenotoxicity. The results proposed if the triclosan tested (60-150 µM) became exceedingly harmful to the test bacterium, as seen by the decrease in E. coli CFU, indicated that triclosan had antibacterial properties and inhibited the test microbe, depending on the concentration of triclosan used. Triclosan at concentrations of 40 and 80 µM, respectively, decreased the sprouting length of Vigna radiata and Crotalaria juncea by 45-50% and 70-72%, respectively. Thus, the cytogenotoxicity assay using Allium cepa revealed that triclosan damages the meristematic cells. Triclosan at 40 µM concentration resulted in a 1.2% aberration index and a 10.4% mitotic index, and 80 µM caused a 1.4% aberration index and an 8.8% mitotic index. All of the findings point to triclosan being potentially hazardous to the biota.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135409487","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}

{"title":"Surveying Medical Mask Waste Generation in Can Tho University, Vietnam","authors":"N. Giao, Nguyen Nhu Y, Pham Ngoc Phuong Vy","doi":"10.26554/ijems.2023.7.2.47-55","DOIUrl":"https://doi.org/10.26554/ijems.2023.7.2.47-55","url":null,"abstract":"Medical mask waste is generated more and more and causes many negative impacts on the environment and human health. This study was conducted to survey the current status of using and managing medical mask waste by students at Can Tho University, Vietnam. The study conducted by direct interviews with 120 students and field observations of the research area. As a result, students of Can Tho University use about 43,850 masks resulting in 153.475 kg of medical mask waste per day. Medical mask waste was not well classified by students. Understandings of students regarding toxicity and non-biodegradable characteristics of medical masks are relatively high. However, the level of awareness of students about medical mask waste has some limitations, through the way that medical masks are considered as household waste and are not really necessary to pay attention to the classification of medical masks. As can be seen that training on waste classification and associated waste containers are urgently needed for better solid waste management in the university. This research will contribute to enriching scientific data sources in the field of solid waste, especially medical mask waste.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90338803","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}

{"title":"Understanding the Challenges of the Hilsa Fishing Community in Bangladesh: The River of Life","authors":"A.B.M. Arman Hossain, Gazi Muhammad Abdullah Mahdi, Md. Mehedi Hasan Pramanik","doi":"10.3126/josem.v2i2.55204","DOIUrl":"https://doi.org/10.3126/josem.v2i2.55204","url":null,"abstract":"This study examines the economic, livelihood, and social-environmental conditions of the Meghna Riverbank Hilsa fishermen in the Chandpur region of Bangladesh. The research methods encompassed household surveys, surveys conducted during fishing activities, individual interviews, focus group discussions (FGD), key informant interviews (KII), direct observation, and problem analysis with priority ranking. To gather comprehensive information about the socio-economic conditions and livelihood strategies of the Meghna Riverbank hilsa fishermen, a semi-structured interview schedule was conducted. The findings reveal that these fishermen face exploitation, financial instability, and extreme poverty, relying solely on the river for their income. They lack access to fishing equipment and land due to river erosion, and basic necessities such as family planning, health and sanitation facilities, and education are inadequate. The overall situation is further exacerbated by social and economic constraints, including a growing number of fishermen, low incomes, limited alternative sources of income, loan repayment difficulties, piracy, rising prices, and resource disputes among stakeholders. To improve their standard of living, the study recommends effective interventions, cooperation between government and non-government organizations, and meticulous execution of strategies.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135642694","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}

{"title":"Partial Replacement of Coarse Aggregates with Plastic Waste in Paver Blocks","authors":"Adetoye Olubunmi, Rabiu Olayemi Olamoju, Afolayan Taiye","doi":"10.3126/josem.v2i2.55201","DOIUrl":"https://doi.org/10.3126/josem.v2i2.55201","url":null,"abstract":"Plastics are widely used worldwide, but their non-biodegradable nature leads to significant waste generation. Improper management of plastic waste poses environmental hazards. Paver blocks made of concrete offer versatility, aesthetic appeal, and low maintenance when manufactured and placed correctly. Utilizing plastic as a building material aligns with Sustainable Development Goals. Concrete production contributes to the depletion of natural resources like aggregates. This study investigates the partial replacement of coarse aggregates with plastic waste in pavement blocks, using a mix ratio of 1:2:4. Coarse aggregates were replaced at volumes of 0%, 5%, 10%, and 15%. After batching and mixing, 54 cubes were produced and cured for 7, 14, and 28 days. Tests conducted included slump, compressive strength, and water absorption. The results indicate an optimal replacement of 10% of coarse aggregates with plastic waste which reduced water absorption. Plastic waste is recommended for use in low-load bearing walls and structures like pedestrian footpaths and water retaining structures, reducing costs and conserving natural resources. Effective utilization of plastic waste in the construction industry benefits the environment.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135641593","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}

{"title":"Mangrove Land Suitability Assessment Using Weighted Linear Combination: A Case Study of La Union Province Coastline, Philippines","authors":"Alexis Ann Aduana-Alcantara, King Joshua Almadrones-Reyes, Nikki Heherson A. Dagamac","doi":"10.3126/josem.v2i2.55200","DOIUrl":"https://doi.org/10.3126/josem.v2i2.55200","url":null,"abstract":"Land suitability assessments play a crucial role in determining optimal land use patterns to meet specific requirements, particularly in the context of forest restorations and plantations. However, there is a lack of studies reporting such assessments for mangrove rehabilitation and reforestation in the Philippines, leading to low survival rates (10-20%) due to improper site selection and site-species matching. This study aims to identify and narrow down suitable sites for mangrove growth in La Union Province, facilitating ground truthing for site selection and species matching. The Geographic Information System (GIS) method, specifically the Weighted Linear Combination (WLC) using ArcMap software, was employed. The study identified four suitable sites along the coastline of La Union within the jurisdictions of Aringay, Bangar, Sto. Tomas, and the City of San Fernando, all actively involved in mangrove conservation. However, mangrove planting efforts in other municipalities along the coastline of La Union, such as Agoo, Balaoan, and Bauang, were not reflected on the maps due to data resolution limitations. Nevertheless, the study's findings should be regarded as a supportive tool in the site determination process, with ground truthing and assessment remaining essential. Integrating the study's results with mangrove rehabilitation/reforestation efforts offers efficiency options that have the potential to enhance project success rates.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135642563","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}

{"title":"Assessing Climate Change Challenges and Adaptation Strategies in South Asian Countries: A Review","authors":"Suja Giri, Aakriti Prasai, Ashish Khanal, Renuka Khamcha, Saksham Tiwari, Sharmila Khadka, Yashodha Thapa, Nitesh Rai, Mamata Pantha","doi":"10.3126/josem.v2i2.55207","DOIUrl":"https://doi.org/10.3126/josem.v2i2.55207","url":null,"abstract":"The wide range of environmental consequences caused by climate change highlights the urgent need for global action to mitigate its effects, as it poses a significant threat to forest ecosystems, freshwater systems, and the overall stability of our planet. This review paper addresses the limitations in availability of country-specific documents on climate change in South Asian countries and identifies gaps in addressing climate change challenges. By reviewing secondary literature and utilizing online resources, the paper provides insights into the current status of climate change issues and adaptation strategies in Nepal, India, Bangladesh, Bhutan, Pakistan, Afghanistan, Maldives and Sri Lanka. The paper emphasizes the importance of sustainable practices, community involvement, and adaptive management plans in addressing climate change impacts on forests in these countries. It also highlights the need for international collaborations, research, and monitoring to enhance their capacity to mitigate and adapt to climate change. The research findings are valuable for various stakeholders, including ecologists, geologists, hydrologists, local authorities, and governments, as they can be utilized for climate-sensitive planning, project evaluation, integrating gender perspectives, and further research.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135641446","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}

{"title":"Climate Change Mitigation and Adaptation in Nepal and South Asia: Challenges, Progress, and Recommendations","authors":"Suja Giri, Aman Prabhakar, Rohit Babu Malla, Sameeksha Oli, Sandip Poudel, Ashish Khanal","doi":"10.3126/josem.v2i2.55206","DOIUrl":"https://doi.org/10.3126/josem.v2i2.55206","url":null,"abstract":"This study examines the challenges and status of climate change mitigation and adaptation in South Asian countries, with a specific focus on Nepal. The study employs a purposive sampling approach, selecting countries based on the engagement of researchers in those regions and performing a comprehensive literature review. The analysis of the gathered literature provided valuable insights into the challenges of climate change mitigation and adaptation in South Asian countries, particularly Nepal. The study highlights the significant impacts of climate change on sectors such as agriculture, infrastructure, and coastal regions. However, it also acknowledges the progress made through the implementation of climate change mitigation and adaptation measures. Despite the progress, challenges remain in effectively addressing climate change, with current measures falling short of the ambitious targets set by the Sustainable Development Goals (SDGs) and the Paris Agreement. To address these challenges, the study recommends strengthening regional collaboration and knowledge sharing, prioritizing the adoption of renewable energy technologies, investing in climate-resilient infrastructure, promoting sustainable agricultural practices, developing comprehensive policy frameworks, exploring innovative financing mechanisms, and enhancing capacity and awareness.","PeriodicalId":32450,"journal":{"name":"IJEMS Indonesian Journal of Environmental Management and Sustainability","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135641843","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}