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All Journal Jurnal Ilmu Lingkungan JURNAL ANALISIS KEBIJAKAN KEHUTANAN DiH : Jurnal Ilmu Hukum Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Journal of Civil Engineering Jurnal Ius Constituendum Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Al Qalam: Jurnal Ilmiah Keagamaan dan Kemasyarakatan JURNAL SELULOSA Jurnal Hukum Magnum Opus Pena Justisia: Media Komunikasi dan Kajian Hukum Journal of Environmental Science and Sustainable Development Prisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram Jurnal Ilmu Kehutanan Journal of Islamic Economics Lariba Environmental and Materials Applied Environmental Science Journal of Infrastructure Policy and Management (JIPM) (Journal of Environmental Sustainability Management)
Wardhana, Yuki Mahardhito Adhitya
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Assessment of carbon storage and sequestration for mitigating climate change in urban forests Rosa Aprilia; Yuki Mahardhito Adhitya Wardhana; Sri Setiawati Tumuyu
Applied Environmental Science Vol. 4 No. 1: (July) 2026
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/aes.v4i1.2026.3712

Abstract

Background: Urban forests can contribute to climate change mitigation by lowering atmospheric carbon dioxide (CO₂) concentrations, thereby enhancing ecosystem resilience in urban area. Quantifying the carbon storage and sequestration capacities of urban forests is crucial for assessing their actual and potential roles. Interest in carbon quantification is growing; however, empirical evidence from densely populated urban forests remains limited. This study presents a case study on the quantification of carbon storage and sequestration by the Kemayoran Urban Forest, an urban forest in the city center with high population density and environmental pressure. Methods: Quantitative methods were employed to estimate carbon storage and sequestration using a non-destructive method based on allometric equations. Data collection was conducted through direct field surveys with established plot samples. Findings: This study recorded 267 tree individuals, comprising 36 species across 32 genera and 19 families. The total carbon storage was 74.83 tons C ha⁻¹, with total carbon sequestration amounting to 274.62 tons CO₂ ha⁻¹. However, this carbon assessment was limited to above-ground biomass estimates and did not include below-ground carbon stocks. Conclusion: The results indicate that the Kemayoran Urban Forest has substantial carbon storage and sequestration capacity despite being managed in an urban setting characterized by high population density and environmental pressures. Novelty/Originality of this article: This study provides empirical evidence of the carbon storage and sequestration capacity of a densely populated urban forest using a standardized non-destructive allometric approach. The findings establish baseline carbon data that support urban forest management and climate change mitigation planning.
Seagrass community structure as an indicator of ecosystem response on Pramuka Island Aqilla Nur Fadia; Evi Frimawaty; Yuki Mahardhito Adhitya Wardhana
Applied Environmental Science Vol. 4 No. 1: (July) 2026
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/aes.v4i1.2026.3750

Abstract

Background: Seagrass ecosystems are important blue carbon habitats but are increasingly threatened by anthropogenic activities. This study analyzed seagrass community structure and ecological responses across different levels of human pressure on Pramuka Island, Indonesia. Methods: A quantitative approach was employed using quadrat transects at 3 stations subjected to different pressure A quantitative field survey was conducted using quadrat transects at 3 stations. Seagrass species composition, cover, diversity, evenness, dominance, and Importance Value Index (IVI) were analyzed. Water quality was measured in situ, while carbon sequestration was estimated using literature-based coefficients. Findings: A total of 6 seagrass species were identified, with Thalassia hemprichii as the dominant species. Station 2 showed the highest dominance and lowest diversity, whereas Station 3 had the highest diversity despite the lowest seagrass cover. Overall seagrass cover remained below 30%, while estimated carbon sequestration ranged from 0.42 to 0.55 tons C ha⁻¹ year⁻¹. Similar water quality among stations suggests that differences in community structure were more strongly influenced by habitat characteristics and hydrodynamic conditions than by physicochemical factors. Conclusion: The findings indicate that seagrass community structure is a more sensitive indicator of ecosystem condition than seagrass cover alone. Integrating community structure with cover measurements can improve ecological assessments and support evidence-based management of seagrass ecosystems under varying anthropogenic pressures. Novelty/Originality of this article: This study demonstrates the value of biodiversity-based indicators alongside seagrass cover for assessing ecosystem condition and informing blue carbon and coastal conservation strategies.
Proyeksi Cadangan Karbon Berbasis Data Empiris dalam Agroforestri untuk Mitigasi Perubahan Iklim Muharam Kemal Adam; Mahawan Karuniasa; Yuki Mahardhito Adhitya Wardhana
Jurnal Ilmu Kehutanan Vol 19 No 2 (2025): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i2.20118

Abstract

Deforestation from monoculture farming significantly contributes to greenhouse gas emissions and ecosystem degradation, highlighting the need for sustainable land management. Agroforestry presents a viable solution for enhancing carbon sequestration. However, many project models rely on assumptions or secondary data, leading to limited accuracy. This research aimed to enhance projections of carbon stock changes by utilizing empirical data from a 12.7-ha tea plantation in West Java, Indonesia. This research established baseline carbon stocks through direct field measurements in a monoculture scenario. Agroforestry interventions involved hardwood species, such as Toona sureni, Altingia excelsa, and Manglietia glauca, in conjunction with coffee crops. Carbon stock accumulation was then projected over ten years using allometric equations and annual growth increments derived from field observations. Results indicated that agroforestry increased carbon sequestration by threefold compared to monoculture, reaching 472.77 t CO2eq/ha by 2032. The findings demonstrated that empirical data-driven modeling resulted in more realistic and reliable projections, enhanced the accuracy of carbon stock predictions, and established agroforestry as a sustainable approach for mitigating climate change.
Harmonization of Funding for Government Cooperation With Small-Scale Public-Private Partnership Kurdi Kurdi; Prita Amalia; Yuki Mahardhito Adhitya Wardhana
Jurnal Ius Constituendum Vol. 9 No. 3 (2024): OCTOBER
Publisher : Magister Hukum Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jic.v9i3.10536

Abstract

This study examines the relevance of the Ministry of National Development Planning (Bappenas) Regulation No. 7 of 2023 and Law No. 1 of 2022 in supporting the Small-Scale Public-Private Partnership (PPP) scheme. The urgency of this research lies in the need to improve existing regulations and ensure legal certainty for Small-Scale PPPs, as these regulations provide relevant frameworks for such schemes. The study aims to understand how regulatory harmonization can enhance regional fiscal capacity and facilitate project implementation. Utilizing a normative juridical method with legislative and conceptual approaches, the study finds that since 2015, only 6 out of 34 PPP projects involved local governments. The conclusion highlights the importance of simplifying regulations and adjusting project value requirements to increase regional participation and fiscal effectiveness. The study recommends regulatory adjustments to support more equitable and sustainable infrastructure development.
Co-Authors Aini, Khairina Nur Aqilla Nur Fadia Chairil Abdini Dadan Ramdhani Diah Sabatini Sitiningrum Eddy Rachmad Evi Frimawaty Hasrol Thayib Hayati Sari Hasibuan Izzati, Amrina Nur Kemal Adam, Muharam KOSUKE MIZUNO, KOSUKE Kurdi Kurdi Kurdi Kurdi Kurdi Kurdi Mahawan Karuniasa Mahawan Karuniasa Muharam Kemal Adam Prita Amalia Prita Amalia Prita Amalia, Prita Rosa Aprilia Sodri, Ahyahudin Sri Setiawati Tumuyu Sri Setiawati Tumuyu Suyud Warno Utomo Udi Syahnoedi Hamzah Whidas Prihantoro Yudistira, Prisma Yuli Miniarti