Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management)

Bioassay the Composition of the Organic Pot as a Container Media for Balsa (Ocrhoma bicolor Rowlee) Growth in Nursery

Hizbullah Al Muzahiq — 2025-01-01

Forestry plant seedling production uses non-eco-friendly polybags. Organic pots are a solution that can be applied. This research aimed to analyze the composition and size of raw materials in organic pots for balsa growth and to examine the composition of raw materials in organic pots appropriate for balsa growth. This study used a factorial complete randomized design (CRD). There are two factors: the organic pot composition factor (A) and the mesh size factor (M). The observed parameters included the C/N ratio of organic pots, height, diameter, biomass, and plant chlorophyll content. The results showed that the highest percentage decrease in the C/N ratio was found in the A3M2 treatment. The highest average value of balsa plant growth was found in the A3M2 treatment (15% newspaper, 80% goat manure, 5% cocopeat, and ten mesh material size). The highest chlorophyll content was found in A3M1 treatments (15% newspaper, 80% goat manure, 5%
cocopeat, five mesh material size). Organic pots with low C/N ratio values had higher average increases in height and diameter of plants compared to organic pots with high C/N ratio values. The optimal composition of the organic pot in this study was the A3M2 treatment.

Performance Comparison of Waste Management Approach in West Java through Masaro and Waste-to-Energy (WtE) Power Plant Technologies

A. Zainal Abidin — 2024-11-20

Waste is often considered as something useless and valueless. However, as the world enters a new industrial era, there is a growing awareness that waste has a high economic value. With proper processing, the waste can be recycled and even used as a feedstock for power generators. With a waste production reaching 24,000 tons per day in West Java, waste becomes a sustainable raw material. There are several methods for processing waste, such as Zero Waste Management Technology (Masaro) and Waste-to-Energy Power Plant (WtE). This study aims to compare the performance of Masaro and WtE technologies from their potential and economic impact. Both methods certainly have their advantages and disadvantages in terms of waste reduction capacities, products obtained, and financial benefits. This study reveals that Masaro technology can reduce 100% waste, whereas WtE can only reduce up to 70–97%. Subsequently, Masaro technology offers more diverse products rather than WtE (6 products vs. 3 products). Moreover, the gross profit margin (GPM) shows that Masaro can reach 99.27% while WtE is still in the range of 12.23–25.30%. It can be concluded that Masaro has quite higher potential and economic benefits compared to WtE.

Sustainability Analysis of Environmental Waste Alleviation through Bioconversion using Black Soldier Fly Larvae: A Case Study in Depok City, Indonesia

Sunarto Zulkifli — 2025-01-01

Depok City, Indonesia, faces significant challenges with a population of over 2 million people, substantially impacting waste issues, particularly food waste, contributing to global anthropogenic greenhouse gas emissions. To support sustainable development goals, it is crucial to reduce food loss. To address this problem, black soldier fly (Hermetia illucens) has emerged as a potential solution because of its ability to break down food waste into biomass. Nevertheless, environmental waste management faces challenges such as public awareness, infrastructure limitations, stakeholder engagement, and threats to long-term sustainability. This study aims to identify key leverage points for the sustainability of BSF (Black Soldier Fly) larvae utilization in waste management. The objective of this study was to identify the key sustainability factors. This study used RAPFISH (Rapid Appraisal for Fisheries) software to find the keys to sustainability. Results reveal that the sustainability status of the utilization of BSF for environmental waste management
is deemed to be “Relatively Sustainable”. The Department of Environmental and Cleanliness plays a pivotal role as a sustainability leverage for this program.

A Multicriteria Policy Analysis: Policy Framework for Sustainable Groundwater Management in Kupang City, East Nusa Tenggara, Indonesia

Aplonia Nia Bani — 2025-01-02

This study aimed to provide a policy framework for groundwater management in Kupang City, East Nusa Tenggara. The method used in this research was a multicriteria policy analysis method with a qualitative approach. Data were collected using a focus group discussion method. The study participants were 14 stakeholders, including the Director of Planning and Supervision of Watershed Management Nusa Tenggara II River Basin Management Center, Head of the Watershed and Protected Forest Management Center Benain Noelmina, Development Planning Agency, Regional Research and Development of East Nusa Tenggara, Southeast Province, Chair of the River Basin Forum of East Nusa Tenggara Province, Kupang City Development Acceleration Team, Commission III Regional Legislative Council of Kupang City, Non-governmental Organizations, Environmental Practitioners, Provincial Level Environmental Observer Groups, Kupang City and Regency, Legal Practitioners, and Academics. In the focus group discussion, the respondents were free to express their opinions on sustainable groundwater management policies in Kupang City, East Nusa Tenggara. The results show that the groundwater information system is the best in an integrated
scenario with a superior program for establishing special zones to identify watershed conservation areas.

Influence of Sociodemographic, Knowledge, and Behavior of DKI Jakarta People on Willingness To Pay for Disposable Mask during the Covid-19 Pandemic

Yona Qurratu'ain — 2025-01-01

The use of masks is recommended to reduce the risk of widespread spread of the Covid-19 virus, but because of its use in high quantities in a short time, it has an impact on the high waste of disposable masks. The problem of high waste of masks that is not accompanied by good management is it has the potential to pollute the environment and disposable masks are included in the type of hazardous medical waste so that they require special waste management. The purpose of this study is to analyze the relationship between the sociodemographic characteristics of the people of DKI Jakarta and the Willingness to Pay (WTP) for disposable mask waste management to determine the WTP price for disposable mask waste management. The survey was conducted in DKI Jakarta Province by distributing questionnaires and obtained a total sample of 356 respondents. Furthermore, the analysis method used, the first is logistic regression analysis to determine the variables of sociodemographic characteristics that affect individual WTP. The next analysis method is to calculate WTP using the Contingent Valuation Method (CVM) and the question model with the Double Bounded dichotomous method. Based on the results, it is known that the dependent variables that can increase the WTP value are income (Δ+ 23.6%, p ≤ 0.05), type of healing treatment (Δ+ 100%, p ≤ 0.1), and knowledge (Δ+ 125.9%, p ≤ 0.01), where a value of Rp 28,578 is ideal for the cost of managing disposable mask waste.

Annual litterfall Production in the Medium-high Tides Mangrove Area of Angke Kapuk Protected Forest

Amandita Lintang Rumondang — 2025-01-02

Litterfall production in the mangrove ecosystem is essential for the mangrove community. It also has an essential role in contributing carbon to estuaries in the tropics. This study aimed to determine the mangrove litterfall production in the Angke Kapuk Protected Forest area, Indonesia, which has a medium-high tide tidal type, and how environmental factors affect the litterfall production. The method used to catch litterfall in the forest for a certain period was the litter-trap method with 34 litter-traps size 1 × 1 meter each and a mesh size of 1 mm spread out systematically and suspended above the maximum tidal height. The trapped litterfall was sorted into leaves, twigs, and reproductive components. Litterfall was baked in an oven at 105 oC for 24 hours, and the dry weight was weighed. The annual production of mangrove litterfall in the medium-high tides area is 761.37 g m². Leaves were the most dominant component of mangrove litterfall. There is no significant correlation between litterfall production and monthly rainfall, while the correlation between litterfall production and wind speed only affects reproductive parts significantly affected by wind speed.

Changes Detection of Mangrove Vegetation Area in Banyak Islands Marine Natural Park, Sumatra, Southeast Asia

Muhammad Arif Nasution — 2025-01-02

The mangrove ecosystem in the Banyak Islands faces urgent challenges due to environmental pressures, highlighting the need for accurate identification and conservation efforts. Mangrove forests provide crucial ecological benefits, making their preservation vital for sustainable regional development. To address these challenges, this study analyzed changes in mangrove vegetation on Tuangku Island, part of the Banyak Islands Marine Natural Park (BIMNP), over a decade (2010–2020). The methodology utilized Landsat imagery and ALOS PALSAR data, which were analyzed through the Google Earth Engine platform. Spectral index combinations, including NDVI, NDMI, MNDWI, and MVI, were analyzed using random forest classification, a tree-based machine learning algorithm. The study's methodology revealed that the total estimated mangrove area was 818.21 hectares in 2010, increased to 939.91 hectares in 2015, and then slightly decreased to 899.96 hectares in 2020. These findings indicate an initial expansion of mangrove vegetation followed by a decline, suggesting fluctuating environmental conditions or human impact over the period studied. The findings highlight the critical need for continuous monitoring and adaptive management practices to support the long-term sustainability of the mangrove ecosystem within the BIMNP. Based on these findings, we recommend implementing targeted conservation measures and further research to understand the underlying causes of the observed changes, thereby supporting the region's sustainable development and ecological health.

The Role of Stakeholders in Managing Social Forestry Business Development in FMU South Bandung, Indonesia

Fakhri Rhamadian Hidayat — 2025-01-02

Social forestry symbolizes a sustainable forest management strategy, where local communities are important in strengthening socio-economic aspects, namely welfare and environmental sustainability. Increasing community welfare depends on collective efforts of social forestry, regional regulations, institutional structures, and cooperative with various stakeholders. Subsequent analysis employed the stakeholder analysis model, which scrutinizes stakeholders' roles in natural resource management. The examination compares roles outlined in policy with stakeholders' actual engagement. Consequently, the research provides insights into how stakeholders contribute to social forestry business development based on two critical factors: interest and influence. Results indicate that stakeholders' roles and contributions are substantially influenced by policy, especially concerning their interests and impact on community business ventures in social forestry. Stakeholder analysis reveals that governmental bodies, as mandated by policy, predominantly occupy quadrant II, tasked with aiding community groups in advancing social forestry businesses. However, quadrant I also encompasses governmental entities, albeit with limited involvement in community group activities. QuadrantsIII and IV underscore the diverse roles stakeholders assume within their respective domains, reflecting their interests and influence on business development initiatives to empower the community and improve the livelihood. This research aims to formulate tactics to enhance stakeholder involvement in implementing nation policies for fostering social forestry enterprises within the FMU South Bandung. The tactics need support of each party, especially the social forestry regulation in developing the business and capacity agency in measurement of accessible market, business plan, valuable product and good forest institutions.

Nesting Site Preference of Tarsius fuscus in Bantimurung Bulusaraung National Park, South Sulawesi

Lorenzo Elton Meo — 2025-01-02

Tarsius fuscus is one of the smallest primates in the world endemic to South Sulawesi. T. fuscus as a wildlife is thought to tend to choose nests in places with certain criteria. Nests have an important role in wildlife habitats related to anti-predator, sleeping, and reproductive functions. Research on T. fuscus nesting preferences is important to do with the aim of analyzing T. fuscus nesting preferences and the factors that influence them. This research was conducted at the Mallawa Resort, Bantimurung Bulusaraung National Park, South Sulawesi from July to August 2021. The method used was direct observation of T. fuscus nesting points. Biotic and abiotic data are recorded at each of these points either by direct measurement or with the help of GIS. T. fuscus nesting preference was determined by PCA calculation and Neu index. There are 7 parameters that influence the preferences of T. fuscus nesting sites, namely land cover, nest substrate, the height of the nest from ground level, distance from settlements, slope, elevation, and distance from rivers.

Power Struggles and Conflict Visibility in Contested Political Forests: A Case Study in Sukaslamet Village, Indramayu Regency, Indonesia

Elvara Dwi Satria — 2025-01-02

Forest tenure conflicts have been a problem in Perhutani's management areas for decades. As an entity authorized to manage, exploit, and protect most of the forest areas in Java, Perhutani's forest management is not free from land occupation issues. The duality in viewing land rights between Perhutani from the legal side and the community from the historical side of control is a narrative that continues to be debated and is challenging to resolve. This study aims to describe the local dynamics of forest tenure conflicts through empirical evidence of the historical trajectory of forest tenure in the Perhutani management area in Indramayu. Using a qualitative research method, this study presents case studies of land tenure conflict events within the framework of conflict visibility assessment and the Actor-Centered Power (ACP) approach in its analysis. The results of the conflict visibility assessment show the gradation and historiography of forest tenure conflicts in Perhutanimanaged areas and produce several important findings to complement the forest tenure conflict literature. The research findings show how shifts in actor power led to changes in forest tenure conflicts in Indramayu. Finally, the establishment of the Forest Areas with Special Management policy as an effort to resolve conflicts can cause new contestations by inviting other powerful actors.

Land-cover Dynamics and Oriental Honey-buzzard Winter Habitat Preference in Borneo, Indonesia

Utami Meirani — 2025-01-07

Migration is part of an individual's behavioral adaptation to seasonal environmental changes. Migration can take advantage of organisms facing cyclical changes in limited resources. Borneo island is one of the wintering migration destinations for Oriental Honey-buzzard in Indonesia. The confluence of deforestation, industrialization, and urbanization has placed Kalimantan at a critical juncture. Borneo Island has led to the fragmentation habitat. ARGOS is a satellite tracking tool that has been used to monitor the movements and behavior of Oriental Honey-buzzards since 2003. Three individuals were investigated in this study to determine the response to land-cover changes that occurred in Borneo in 2003, 2006, and 2009. The ecological complexity and speciesenvironment connections that support Oriental Honey-buzzard responses are highlighted in this study. The analysis of responses suggests that Oriental Honey-buzzard was more commonly encountered in forested areas in Borneo than in 11 other land-cover areas during three years 2003, 2006, and 2009. Time duration spent in forested areas consistently exhibited the longest presence duration, with durations of 136.88 hours, 1,121.17 hours, and 1,160.53 hours in 2003, 2006, and 2009, respectively. The shortest duration of presence in mangrove and swamp areas was during 2003, 2006, and 2009.

Environmental Impact of Limestone Mining Using A Life Cycle Assessment Method

Atfal Murodif — 2025-01-07

The extraction of limestone for cement production can adversely affect the environment. An inquiry is underway to examine the environmental ramifications of limestone mining to formulate strategies to mitigate these effects. This study aims to assess the ecological impact indicators of the limestone mining process by utilizing the LCA method based on CML-IAbaseline data from the openLCA software. The results indicate that crushing is a significant area of focus, contributing the most extensive value. The ratio of Ammonium Nitrate to diesel oil in adherence to guidelines is 94.5 to 5.5%. Particular emphasis is placed on assessing raw materials, especially during the loading and hauling stages. In conclusion, the research findings reveal environmental impact indicators with standardized values, such as Abiotic Depletion, Abiotic Depletion of Fossil Fuels, Acidification, Eutrophication of Freshwater Aquatic Ecotoxicity, Global Warming 100a, Human Toxicity, Marine Aquatic Ecotoxicity, Ozone Layer Depletion, Photochemical Oxidation, and Terrestrial Ecotoxicity.

Analysis of Land Use/Land Cover Changes 2005–2020 Jagorawi Highway Corridor

Tiara Pratiwi Kusumah Wardani — 2025-01-07

Infrastructure development has both negative and positive impacts on the surrounding area. Economics growth, improved living standards, education levels, and easy access are the positive impacts of infrastructure development, meanwhile, it also has the consequences on the naturalresource use and environmental impacts from unsustainable consumption and socio-economic consequences for people around the developed areas. With the currently limited land, management needs to be addressed wisely in areas with high demand for land. Infrastructure can be a catalyst for land use change. This study aims to determine land use changes that occurred in 2005, 2010, & 2020 and analyze its driving factors. We used time series data from Landsat imagery taken from Landsat 5 TM (2005 & 2010) and Landsat 8 OLI/TIRS (2020). Visual analysis method was used to identify and classify the eight land use types per each period of Landsat image series. A simple overlay method was applied to determine the effect of the factors of distance from JT Jagorawi, from arterial collector roads, from GT Jagorawi, and from the government center; and population density. The results show that the built-up area increased from 29.72% in 2005, 32.03% in 2010 and 35.82% in 2020. The range distance that has a potential change in land cover is 4 km from JT Jagorawi & GT Jagorawi; 1 km distance from arterial and collector roads; 7.5 km distance from the government center with a population density of < 5,000 to 10,000 people km².