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International Journal of Science and Environment
Published by CV. Inara
ISSN : -     EISSN : 28090551     DOI : https://doi.org/10.51601/ijse.v2i4
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Mathematics Physics
International Journal of Science and Environment (IJSE) is to provide a research medium and an important reference for the advancement and dissemination of research results that support high-level research in the fields of Science and Environment . Original theoretical work and application-based studies, which contributes to a better understanding all fields of Science and Environment. The aim and scope of the journal Chemistry, Chemical Analysis, Physical Chemistry, Physics, Biology, Ecology, Biodiversity, Zoology, Biochemistry, Mathematics, Environmental Science, Agriculture, Environment, Forestry.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 375 Documents
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Organic Waste Management Strategy To Create Sustainable Circular Economy Using Swot and Qspm Model Rahayu, Rahayu; Putra, Putra; Pujo, Pujo
International Journal of Science and Environment (IJSE) Vol. 4 No. 3 (2024): August 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v4i3.108

Abstract

Organic waste management is crucial for sustainable climate change adaptation and mitigation. It supports a circular economy by recycling and repurposing waste, considering the entire product life cycle. This includes initiatives to recycle and repurpose organic waste as valuable resources, promoting a circular economy approach. The aim of the current study is to determine the best strategy for managing organic waste that can support a sustainable circular economy. SWOT analysis is a strategic planning tool based on strengths, weaknesses, opportunities, and threats. The QSPM assesses the attractiveness of alternative strategies for managing organic waste, evaluating external and internal factors that influence the organization. Further research is needed to promote sustainable circular economy principles.This research used the SWOT and QSPM Model to determine the best strategy for managing organic waste that can support a sustainable circular economy. The process involves analyzing internal and external factors of an organization, using the SWOT matrix to identify alternative strategies for programs or activities, and then using QSPM analysis to determine the sequence of these strategies and determine the best to lowest-value strategy outcomes, ensuring data input and decision-making. This study has been carried out in Garut, West Java, Indonesia in 2023. The study analyzes the progress of organic waste processing in Garut Regency using the SWOT-QSPM approach. The results provide insights into the organic waste management strategy for a sustainable circular economy, highlighting the importance of recycling organic waste into new products and supporting society's economy. The circular economy principle can be applied to the processing of organic waste by using BSF, a biological agent that can produce livestock feed and plant fertilizer, reducing the amount of organic waste sent to landfills. The strategies discovered can guide community programs, empowering those without fixed incomes to manage waste. The cultivation of BSF can be integrated with the farm, aiming to reduce poverty and unemployment rates, convert unused land into a community-managed waste management center, aiming to enhance production and income, educate and support the well-being of the community. The best practices for handling organic waste in Garut Regency to promote a sustainable circular economy have been determined by the SWOT-QSPM model. The chosen strategy prioritized 3 main aspects out of 7 alternative strategies : (1) Recruiting society members to manage organic waste processing centers as a routine activity and additional income through processing and cultivation programs; (2) Increasing productivity and scaling up the processing of organic waste to obtain diverse products with higher economic value; (3) Providing direct training and education on organic waste processing to the society to demonstrate the economic value that processed organic waste can generate.
Ecological Index And Ecosystem Status Of Mangroves In The Waters Of Parang Island, Seram Bagian Timur Regency, Maluku Province Taufiq, M.; Sangaji, Masudin; V. Huliselan, Niette
International Journal of Science and Environment (IJSE) Vol. 4 No. 4 (2024): November 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v4i4.109

Abstract

The mangrove ecosystem on Parang Island is one of the important habitats in supporting the productivity of the surrounding waters. Therefore, an analysis of the condition of the mangroves on Parang Island is very important to understand the status and trend of changes in the mangrove ecosystem, so that appropriate conservation and management strategies can be formulated. This study aims to determine the physical-chemical parameters of the waters, analyze the density, percent cover, and status of the mangrove ecosystem in the waters of Parang Island. Mangrove data was collected using the belt transect method, while the physical and chemical parameters of the waters were measured in-situ by making observations at 4 research stations. The results showed that the average water temperature at each station ranged from 29.5°C, the average salinity was 26 ppt, the average current speed was 0.24 m/s, the average pH was 5.25, and the average clarity was 73.18%. There are 4 species of mangroves in the waters of Parang Island, namely Rhizophora apiculata, Rhizophora stylosa, Sonneratia alba, and Bruguiera gymnorhiza. The highest average relative density in the tree category is owned by Rhizophora apiculata, and the lowest is represented by Brugueira gymnorhiza. The highest sapling category is represented by Rhizophora stylosa, and the lowest by Brugueira gymnorhiza, while for the seedling category, the highest relative density is represented by Rhizophora apiculata, the lowest by Sonneratia alba. The highest average mangrove cover is owned by the Rhizophora apiculata species, and the lowest is represented by the Brugueira gymnorhiza species. The condition of the Rhizophora apiculata mangrove is in a moderate status, while Rhizophora stylosa, Sonneratia alba, and Brugueira gymnorhiza species are in a rare status.
Tree Composition On Light Intensity In Agroforestry Systems In People's Forests Winarni, Marti; Susanto, Anang
International Journal of Science and Environment (IJSE) Vol. 4 No. 4 (2024): November 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v4i4.112

Abstract

Developing an agroforestry system with conventional community forest plants has several obstacles, such as altitude, temperature, humidity, availability of nutrients, and light intensity, causing forest plants not to grow optimally. Agroforestry is one way to overcome problems on land, one of which needs more light intensity for the growth of forest plants. This research aims to determine optimal sunlight for developing forest plants using an agroforestry system. This research was carried out in the community forest area of Magetan Regency. The survey method used in community forest areas was by taking samples of 6 stand structure compositions and 6 plots in six villages. The parameters observed included the number of branches, crown diameter, plant type, height, and light intensity. Light intensity is measured using a lux meter placed under the canopy. The research results showed that the tree composition Albizzia+Mahagoni+Tectona+Mangifera let  of light at 12.01, while the lowest was the tree with the composition Mahagoni+Tectona+ Tamarindus sp+ Gmelina sp.
Technical Efficiency in Bitter Melon Plants Using Data Envelopment Analysis (DEA) Model in Tanah Laut District Pertiwi Pohan, Rana; Ferrianta, Yudi; Dewi Yanti , Nuri
International Journal of Science and Environment (IJSE) Vol. 4 No. 4 (2024): November 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v4i4.113

Abstract

Farm technical efficiency involves maximizing output while minimizing input costs. In Tanah Laut Regency, bitter melon production fluctuates annually due to climatic factors and inefficient input use. On average, farmers use 0.47 hectares of land, 166 grams/ha of seeds, 2,659 kg/ha of organic fertilizer, 208 kg/ha of inorganic fertilizer, 7.08 liters/ha of liquid pesticides, 7.24 kg/ha of solid pesticides, and 339 HKSP of labor. Data Envelopment Analysis (DEA) indicates that farmers are technically inefficient, with average technical efficiencies of 80.8% (CRS-DEA), 89.9% (VRS-DEA), and 89.8% (SE-DEA). Among the farmers, 32% operate under increasing returns to scale (IRS), 26% under constant returns to scale (CRS), and 42% under decreasing returns to scale (DRS). A logit regression model reveals that education level, farming experience, and number of family members significantly impact technical efficiency, while age, land ownership status, and off-farm income do not. To enhance efficiency, farmers should reduce input use by emulating the practices of their more efficient peers.
Macrozoobentos Composition In The Babura River Sumatra Utara Sinambela, Masdiana; Simorangkir, Andreas; Silaban, Frends
International Journal of Science and Environment (IJSE) Vol. 4 No. 4 (2024): November 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v4i4.114

Abstract

To determine the composition of macrozoobenthos in the waters of the Babura river. The parameters measured are biological parameters, namely macrozoobenthos composition supported by physical and chemical parameters in the Babura river waters. The parameters measured in this research are biotic parameters, namely the type of macrozoobenthos and abiotic parameters, namely physical and chemical parameters. Physical parameters such as: temperature, turbidity, and chemical parameters such as: pH (degree of acidity), (DO), BOD, COD, and phosphate. Taking macrozoobenthos in shallow water using a quadrant and in deep water using an Eckman grab. Physical/chemical parameters are measured in situ and ex situ. Ex-situ is carried out in the BTKL laboratory. This type of research is ex-post de facto or only reveals existing data. Macrozoobenthos composition found in the Babura river: 1. There are six species of insects, namely Chironomus sp, Aeshna grandis, Dragonfiy nymph macronia, Agrion sp, Damsefly nymph, Dragonfly; 2. There are eight species of gastropods, namely: Thiara winteri, Thiara sp, Melanoides tuberculata, Melanoides rustica, Melanoides gramnifera, Brotia testudinaria, , Planorbis sp, Lymnaea rubiginosa; 3. There are two species of Hirudinea/Clitellata, namely Leeches and Glossiphoniidae; 4 There is one species of trematode, namely Pomatiopsis lapidaria Say; 5. There is one species of crustacean, namely Gammarus sp; 6. There is one species of nematode, namely the rolled worm; 7. There is one species of Oligochaeta, namely Tubifex sp; 8. There are three species of Turbilaria, namely Planaria sp, Dugesia sp, Mesostoma sp, so the macrozoobenthos composition consists of 8 classes with a total of 23 species. Physical/chemical parameters still support macrozoobenthos life in the waters of the Babura river.
Nira Production In Terms Of Slope Level In South Tapanuli District Erwin Harahap, Darmadi; Astuti Kuswardani, Retna; HS Siregar, Tumpal; Darwis, Muhammad
International Journal of Science and Environment (IJSE) Vol. 4 No. 4 (2024): November 2024
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v4i4.115

Abstract

South Tapanuli is located at an altitude of 0 to 1,985 m above sea level, where almost at all levels of this altitude we will find sugar palm plants growing wild. The purpose of this study was to evaluate the relationship between slope gradient and sugar palm plant productivity in South Tapanuli Regency. The research method used was the field survey method on sugar palm stands used as sample plants with various levels of slope gradient. Furthermore, the data obtained in the field were tabulated and processed using linear regression. The results of the study showed that the slope gradient was negatively correlated with sap production, meaning that the higher the slope gradient, the lower the sap production. The highest sap production was found at an altitude of 400 - 800 meters above sea level with a slope gradient of 8 - 15% with a sap production of 14.27 liters / day.
The Comparison of Reservoir Impoundment Duration between Ground Observation and Satellite Precipitation Product over Karian, Indonesia Adhi Priyambodho , Bambang; Tiffanyputri Kristiani, Anugerah; Kurniawan, Vittorio; Yulihastin, Erma; Nugraha Putra Herlambang , Rizky; Qodrita Avia , Lely; Satyawardhana , Haries; Wigati , Restu; Subekti , Subekti; Putu Purnaditya , Ngakan; Setyo Nugroho, Paulus
International Journal of Science and Environment (IJSE) Vol. 5 No. 1 (2025): February 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i1.121

Abstract

The initial filling phase of reservoirs is a critical period that demands close supervision to ensure safety and functionality. During this phase, the dam is slowly filled with water, submerging floodplains until it reaches its intended storage capacity. This process assesses the response of the dam to water filling and its overall safety, with continuous monitoring and evaluation against design standards. The duration and rate of filling depend on several factors, i.e., precipitation, dam height, and hydropower plant sensitivity; thus, precipitation was the prominent driving force. However, as continuous precipitation data, multi-satellite global precipitation maps under the Global Precipitation Measurement near-real-time (GSMaP NRT) satellite products offer an alternative but tend to underestimate or overestimate rainfall values, posing challenges for accurate predictions. Bias correction methods of GSMaP NRT product in the spanning period of 2005–2022 demonstrated in agreement with ground observation data through the application of the artificial neural network (ANN) method to reduce the error bias to produce reliable results. This study highlights the importance of the impoundment period for reservoir sedimentation and overall dam safety. It emphasises the need for accurate precipitation data in reservoir management and recommends rigorous bias correction when using satellite data to substitute ground measurements.
Quality Nutrient Identification in Liquid Organic Fertilizer (Goat Urine and Banana Stumps) and Its Application on Growth of Chili (Capsicum frutescens) Bahaduri Indraloka, Aldy; Ilham Hilal, Mohamad; Salam Junaedi, Abdus
International Journal of Science and Environment (IJSE) Vol. 5 No. 1 (2025): February 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i1.122

Abstract

Agricultural waste such as goat manure and urine could be a source of environmental pollution and a source of disease if it can’t be processed into beneficial fertilizer. The use of organic fertilizers could increase plant growth and can prevent land quality degradation, but some of the weaknesses in the application of organic fertilizer are the lack of information on nutrient content and its effects on plant growth. The aim of this research is to analyse the fermentation periods for producing the highest macro nutrient in liquid organic fertilizer made from goat urine and banana stumps. The results showed that the effect of the fermentation periods gave different results of macro nutrients. The recommendation for fermentation periods required to produce the highest macro nutrient content was P2 (21 days), the percentage value of nutrients in (P2: 21 days) were Nitrogen (1.83%), Phosphorus (0.56%) and Potassium (1.20%). The research results also showed that the P4 treatment (20 mL of liquid organic fertilizer) giving the highest value on several parameters in chili (height, number of leaves, fresh weight, root length, number of flower and fruits). P1 and P3 recommended for appearance of flowers (30 DAT) and P4 recommended for stimulating fruit primordia.
Uncovering the Environmental and Social Impacts of Renewable Energy Use in the Halal Industry: Empirical Evidence from Indonesia Shulthoni, Muhamad; Khoirul Fikri, Muhammad; Hermawan Adinugraha, Hendri
International Journal of Science and Environment (IJSE) Vol. 5 No. 1 (2025): February 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i1.144

Abstract

This research aims to uncover the environmental and social impacts of using renewable energy in the halal industry in Indonesia. Using a case study-based qualitative approach, this research explores the implementation of renewable energy, such as biomass and solar panels, in several companies in West Java, East Java, and West Sumatra. Data collection techniques included in-depth interviews, participatory observation, and document analysis, which were thematically analyzed to identify implementation impacts and challenges. The results show that using renewable energy has reduced greenhouse gas emissions by 30% in the last five years and reduced water and soil pollution by 40%. Socially, the implementation created green jobs, empowered local communities, and improved people’s quality of life through access to clean energy. The study identifies key challenges, such as high initial investment and lack of energy literacy among industry players. This research offers a novel contribution by integrating environmental, social, and Sharia sustainability values in the impact analysis of renewable energy. The practical implications include the need for government incentive policies, workforce training, and multi-sectoral collaboration to support the sustainable transformation of the halal industry in Indonesia.
Eco-Friendly Biopolymer Management For Sustainable Plastic Solutions: Applications, Challenges, And Implementation Strategies Sadali, Muhammad; Taufiq Abadi, Muhammad; Akbar Fadzkurrahman A, Muhammad
International Journal of Science and Environment (IJSE) Vol. 5 No. 1 (2025): February 2025
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v5i1.145

Abstract

The use of single-use plastics derived from fossil fuels has been a major cause of environmental pollution. As a solution, biopolymers based on renewable resources have emerged as an environmentally friendly alternative. This article examines the development, challenges, and implementation strategies for biopolymers in providing sustainable plastic solutions. The discussion begins with an introduction to biopolymers, their types, and applications in replacing fossil-based plastics in various industrial sectors. It is found that although biopolymers offer environmental advantages, key challenges include higher production costs, limited raw materials, and waste management. The article also discusses the role of government policies, technological innovation, and multisectoral collaboration in accelerating biopolymer adoption. With appropriate policies, infrastructure development, and increased consumer awareness, Indonesia has great potential to lead sustainable biopolymer production.

Page 7 of 38 | Total Record : 375

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