cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Aditya Darmadi
Contact Email
admin@iasssf.com
Phone
-
Journal Mail Official
jek@journal-iasssf.com
Editorial Address
Cluster Kukusan No 25 M, Jl. Rw. Pule I, Kukusan, Beji, Depok City, West Java 16425
Location
Kota depok,
Jawa barat
INDONESIA
Journal of Earth Kingdom
Published by Institute for Advanced Science, Social, and Sustainable Future
ISSN : -     EISSN : 30249821     DOI : -
Core Subject : Science, Social,
Earth & Planetary Sciences Environmental Science
Journal of Earth Kingdom (JEK) is a half-yearly global journal producing optimal peer-reviewed research on the strength of authenticity, actuality, and accessibility. JEK also provides authoritative, sharp, and grounded interpretations that can be utilized by society as a whole. The Journal of Earth Kingdom (JEK) contains original papers, research articles, and critical reviews. In addition, we produce videos related to our research publication. We also create editorial content, such as scientific responses and analysis of current news and trending topics. We will deliver it in the form of articles and videos as well. Topics covered by this journal feature but are not limited to: Animal science/Zoology Plant/Botanical Science Ecology, Evolution, Behavior and Systematics Geography, Planning and Development Human geography Behavioral physiology Sociobiology Population biology Navigation and migration Biomedicine
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 2 No. 2: (January) 2025" : 5 Documents clear
Utilization of POME waste as a renewable energy source in the life cycle concept of palm oil biodiesel Paminto, Ari Kabul
Journal of Earth Kingdom Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jek.v2i2.2025.1276

Abstract

Background: In 2024, Indonesia, an importer of crude oil and fuel, is shifting focus to renewable energy as fossil fuel production declines. This research aims to develop a life cycle concept for biodiesel production from palm oil, addressing environmental concerns related to emissions from FFB, CPO, and biodiesel production processes. Methods: The method used in this research is a combination of quantitative LCA (Life Cycle Assessment) and AHP (Analytical Hierarchy Process) along with qualitative methods. Findings:  This research identifies and evaluates the alternative utilization of Palm Oil Mill Effluent (POME) waste with certain priority weights. The results showed that biodiesel production from palm oil requires various significant inputs, such as NPK fertilizer, herbicides, water, diesel, and Crude Palm Oil (CPO), resulting in environmental emissions in the form of CO2 of 1489 Kg CO2 (eq) per ton of biodiesel, as well as contributions to eutrophication and acidification. The LCI (Life Cycle Inventory) analysis also identified that the largest CO2 emissions came from POME waste (53%), followed by NPK fertilizer (23%), methanol (18%), and diesel oil (7%), while eutrophication and acidification indicated significant contributions from NPK fertilizer, methanol, diesel oil, and POME waste. These findings confirm the importance of utilizing POME waste as an optimal step to reduce CO2 emissions with a potential reduction of up to 667.2 Kg CO2 through a more sustainable biodiesel production life cycle concept. Conclusion: From this result, researchers recommend that palm oil companies start replacing chemical fertilizers with organic fertilizers to reduce environmental impacts, and encourage the utilization of POME waste at Palm Oil Mills as a source of biogas for renewable energy. At the biodiesel industry level, increasing the methanol recycling rate is proposed to improve efficiency and reduce emissions at the downstream stage of biodiesel production. Novelty/Originality of this article: This study identifies and evaluates alternatives for utilizing Palm Oil Mill Effluent (POME) waste with certain priority weights.
Community structure of Crabs (Crustacea: Decapoda): Response to vegetation variation and environmental parameters in mangrove ecosystems Putri Liani Aliwu; Baderan, Dewi Wahyuni K.; Regina Valentina Aydalina; Zuliyanto Zakaria; Marini Susanti Hamidun
Journal of Earth Kingdom Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jek.v2i2.2025.1440

Abstract

Background: Mangrove ecosystems are crucial for maintaining biodiversity, including crab communities, which are vital to the stability of these ecosystems. Crabs contribute to nutrient cycling and the food web, reinforcing the overall ecological health of coastal habitats. This study focuses on the crab communities in the mangrove area of Tabongo Village, Dulupi District, Boalemo Regency, examining how environmental conditions affect their distribution and diversity. Methods: The research involved surveys at three stations representing different mangrove vegetation conditions. Crab species were identified and their diversity and abundance recorded. Environmental parameters, such as temperature, salinity, and pH, were measured, and the diversity index (H') was calculated to assess species diversity and the relationship between crab communities  and environmental factors. Findings: A total of 11 crab species from 4 families were identified, including Uca (Paraleptuca) annulipes and Ocypode ceratophthalmus. The diversity index ranged from 1.3 to 1.6, indicating moderate diversity. Environmental conditions, with temperatures between 32–34 °C, salinity from 13–19 ppt, and pH from 6.5 to 7, were conducive to crab survival. Station III, with healthier mangrove vegetation, supported greater crab diversity and abundance compared to degraded stations. Conclusion: The study highlights the crucial role of healthy mangrove ecosystems in sustaining crab biodiversity and ecosystem stability. It underscores the importance of mangrove conservation for maintaining biodiversity and protecting coastal ecosystems from degradation. Novelty/Originality of this article: By linking the health of mangrove ecosystems to crab diversity and abundance, it emphasizes the direct impact of environmental factors on crab populations. The findings highlight the importance of mangrove conservation not only for species richness but also for maintaining the ecological balance in coastal ecosystems, offering valuable data for future biodiversity management and conservation efforts.
Ecosystem-based mangrove conservation strategies and the role of communities for sustainable management Sitiningrum, Diah Sabatini
Journal of Earth Kingdom Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jek.v2i2.2025.1476

Abstract

​​​Background: Mangrove ecosystems provide essential ecological, economic, and social benefits but face significant degradation from human and natural pressures. This study analyzes ecosystem-based conservation strategies in Muara Gembong District, focusing on integrating conservation with sustainable economic activities. Methods: A qualitative descriptive approach was employed through literature reviews and field observations, examining ecotourism and silvofishery systems, community involvement, and institutional capacity. Findings: Results highlight the importance of community participation in mangrove conservation through ecotourism and silvofishery systems. Key challenges include economic pressures, sectoral conflicts, weak institutional capacity, and limited technology. Collaboration among stakeholders, supported by education and policy reinforcement, is essential for success. Conclusion: A holistic approach combining ecological, social, and economic aspects is vital for sustainable mangrove conservation in Muara Gembong. Novelty/Originality of this article: This study integrates ecological, social, and economic dimensions into a cohesive conservation strategy, emphasizing community participation and collaborative governance.
Analysis of primary productivity and phytoplankton abundance across coastal ecosystems: Implications for sustainable aquaculture and ecosystem management Dongoran, Khoirul Zaman; Nyompa, Achmad Husein
Journal of Earth Kingdom Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jek.v2i2.2025.1497

Abstract

Background: The coastal waters of Maros, encompassing ponds, estuaries, and open seas, exhibit diverse environmental conditions influencing primary productivity and phytoplankton abundance. Understanding these variations is crucial for sustainable management of coastal ecosystems and the optimization of aquaculture activities. This study analyzed primary productivity and phytoplankton abundance across three distinct Methods: ecosystems: ponds, estuaries, and seas in the coastal waters of Maros. Sampling was conducted using a stratified approach, measuring key environmental parameters such as nutrient concentrations, salinity, and temperature. Phytoplankton abundance was quantified using microscopy, while primary productivity was assessed through light-dark bottle techniques. Results: The findings revealed significant differences in primary productivity and phytoplankton abundance among the ecosystems. Ponds exhibited the highest primary productivity due to elevated nutrient input from anthropogenic activities, while estuaries displayed moderate productivity influenced by fluctuating salinity and nutrient mixing. The sea, despite having lower productivity, showed higher phytoplankton diversity due to stable environmental conditions. Each ecosystem was dominated by distinct phytoplankton species adapted to their specific environmental characteristics. Conclusion: This study highlights the substantial impact of environmental factors on primary productivity and phytoplankton distribution in the coastal waters of Maros. The findings provide insights into the ecological dynamics of these ecosystems, emphasizing the importance of tailored management strategies to balance aquaculture practices and ecosystem sustainability. Novelty/Originality of this article: This research provides a comprehensive comparative analysis of primary productivity and phytoplankton abundance across three interconnected ecosystems in Maros, offering novel insights into their ecological interactions and implications for sustainable aquaculture and coastal management.
The relationship between nitrate and phosphate nutrients and phytoplankton abundance in coastal waters: Implications for ecosystem dynamics Yunus, Muh.; Samawi, Muh. Farid; Jalil, Abd. Rasyid
Journal of Earth Kingdom Vol. 2 No. 2: (January) 2025
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/jek.v2i2.2025.1627

Abstract

Background: The presence and abundance of phytoplankton are closely related to the physical and chemical parameters of water. Phytoplankton play a crucial role in aquatic ecosystems as primary producers and nutrient absorbers. This study aims to analyze the relationship between nitrate and phosphate nutrient content and the abundance of phytoplankton in the Arungkeke Waters, Jeneponto Regency. Methods: This research utilized a combination of field measurements and laboratory analysis. Direct measurements in the Arungkeke waters were conducted to assess surface water parameters, including temperature, salinity, current velocity, transparency, and ph. Water samples were collected for laboratory analysis of phytoplankton composition and abundance, as well as nitrate and phosphate concentrations. Regression analysis was performed to determine the relationship between nutrient concentrations and phytoplankton abundance. Findings: The study identified two classes of phytoplankton present in the Arungkeke waters: Bacillariophyceae and Dinophyceae. Oceanographic parameters were measured, with temperature ranging from 28.3°C to 29.7°C, current velocity from 0.039 m/s to 0.073 m/s, salinity from 29.3 ppt to 32 ppt, transparency from 1.9 m to 2.3 m, and ph from 7.3 to 7.4. Nitrate concentrations ranged from 0.042 mg/L to 0.076 mg/L, while phosphate concentrations ranged from 0.046 mg/L to 0.056 mg/L. The regression analysis revealed a moderate relationship between phytoplankton abundance and nutrient concentrations, with an R² value of 0.44. Conclusions: The study concludes that phytoplankton abundance in the Arungkeke Waters is influenced by nitrate and phosphate concentrations, with a moderate correlation observed. The presence of Bacillariophyceae and Dinophyceae classes indicates the ecological significance of these waters as a primary production area. Novelty/Originality of this article: This study provides valuable insights into the interaction between nutrient dynamics and phytoplankton abundance in the Arungkeke Waters, which is a relatively understudied area. By identifying the classes of phytoplankton present and quantifying their relationship with key nutrients, this research contributes to a better understanding of the ecological processes in coastal waters.

Page 1 of 1 | Total Record : 5

 1 

Filter by Year

2025 2025


Reset
Filter By Issues
All Issue Vol. 3 No. 1: July (2025) Vol. 2 No. 2: (January) 2025 Vol. 2 No. 1: (July) 2024 Vol. 1 No. 2: (January) 2024 Vol. 1 No. 1: (July) 2023