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Ni Putu Diana Mahayani
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Fakultas Kehutanan Universitas Gadjah Mada Jl. Agro No 1, Bulaksumur, Sleman, Yogyakarta 55281
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INDONESIA
Jurnal Ilmu Kehutanan
Published by Universitas Gadjah Mada
ISSN : 01264451     EISSN : 24773751     DOI : https://doi.org/10.22146
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmu Kehutanan is a biannual open access journal by the Faculty of Forestry, Universitas Gadjah Mada, Indonesia, that publishes peer-reviewed scientific articles focusing on aspects of forest management, silviculture, forest conservation, and forest technology, both basic and applied. The Journal intended as a medium for communicating and motivating research activities through scientific papers, including research papers, short communications, and reviews written in English. In considering suitability for publication, the Journal refers international editorial conventions and conducts a double-blind peer-review selection process.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 12 Documents
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Search results for , issue "Vol 19 No 1 (2025): March" : 12 Documents clear
Karakteristik Lingkungan Hutan untuk Terapi Kesehatan di Taman Hutan Raya Bunder, Gunungkidul, Daerah Istimewa Yogyakarta Pertiwi, Serly Andini; Nurjani, Emilya; Hadisusanto, Suwarno
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.9772

Abstract

Healing forests maintain health through preservative practices, allowing benefits to emerge when site conditions support the practices. Therefore, this research aimed to identify the biophysical components and physical elements of the healing forests in Bunder Grand Forest Park (GFP). This research adopted observation methods and spatial analysis to characterize the healing forests' biophysical components and physical elements. The results showed that Bunder GFP had a diverse biodiversity and a distinctive landscape with the potential to provide comfort for visitors. It also met the criteria outlined in SNI 9006:2021, with medium thermal comfort levels. This research suggested vegetation enrichment to enhance the park's therapeutic potential, decrease noise, and increase thermal comfort. Additionally, the existing water features, karst rocks, and mixed forest vegetation can be used as media for sensory stimulation, further supporting health therapy.
The Community Satisfaction Analysis in Mangrove Forests Management in the Unit X KPHL Batu Bara Using Importance Performance Analysis Ginting, Eva Maria Natalina; Zaitunah, Anita; Syahputra, OK Hasnanda
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.11710

Abstract

Sustainable forest management encompasses a holistic approach that considers forests' ecological, social, and economic functions. However, an increasing focus on economic functions often leads to the neglect of social and ecological aspects. Consequently, it is essential to evaluate community satisfaction regarding the service performance of forest management units (FMUs). This research aimed to assess community satisfaction with the service performance of Unit X KPHL Batu Bara, which oversees coastal forests primarily comprised of mangrove ecosystems in the coastal regions of Batu Bara Regency, North Sumatra, utilizing Importance Performance Analysis (IPA). The findings revealed that the service performance of Unit X KPHL Batu Bara falls short of community expectations, as indicated by a negative average gap score of -0.716 between service performance and expectations. The categories of assurance and tangibles exhibited the highest gap scores. Therefore, Unit X KPHL Batu Bara must enhance their service quality for the local communities.
Managing Community Forest Resources: Dynamics of Property Rights and Institutional Effectiveness in Nambo District Yatim, Hertasning; Pakanyamong, Ambo Abd. Kadir; Yatim, Herwin; Zaman, Nur
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.13272

Abstract

In order to effectively achieve the objectives of local collective action, institutions must establish guidelines that align with community norms and are supported by organizational incentives and sanctions. This study aims to examine the dynamics of property rights over forest resources and the efficiency of local institutions in managing the Nambo Community Forest (HKm) within the Toili Baturube Model Production Forest Management Unit. Employing a qualitative case study approach, data collection methods include document analysis, in-depth interviews, and observations. The findings reveal that the forest status in Nambo District shifted to state ownership post-HKm policy implementation and Law 23 of 2014, leading to changes in community access rights. Additionally, community forest management is facilitated through collaboratively developed policies and agreements evaluated using the Ostrom principle design. The study underscores the importance of comprehensive strategies involving cooperation among regional authorities, local communities, and stakeholders to effectively manage shared resources like community forests. Strengthening institutional capacity, empowering local communities, and fostering collective action can enhance the sustainability and success of shared resource management initiatives.
Geospatial Modeling of Carbon Emission Reduction Achievement in Siak Regency, Riau Province Putri, Amaliyah; Purwanto, Ris Hadi; Soraya, Emma
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.14262

Abstract

The Siak Regency implemented the Green Siak Policy in 2016 to commit to reducing carbon emissions. This research aimed to assess land use and land cover (LULC) changes from 2016 to 2023 and make projections for 2030, quantify carbon stocks by LULC type, and estimate CO₂ emissions associated with the implementation of the Green Siak Policy. This research classified LULC using Landsat imagery. It employed the CA-Markov to project land cover in 2030 using eight driving factors: elevation, temperature, rainfall, population density, distance from roads, burned areas, state forest areas, and evidence likelihood. This research assessed carbon stocks using the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model and calculated CO₂ emissions based on changes in LULC and peat decomposition. The findings revealed a slight reduction in total carbon stock from 1,232.52 MtC in 2016 to 1,232.12 MtC in 2023, with annual CO₂ emissions of 1.4 MtCO₂e. Projections indicated an increase in carbon stock, expected to reach 1,232.27 MtC by 2030, with anticipated annual emissions of 1.398 MtCO₂e from 2023 to 2030. While the Green Siak Policy targeted a decrease in emissions of 23.28 MtCO₂e/year by 2030, the results indicated that the Regency achieved merely 0.03% of its target.
Characterization and Pathogenicity Evaluation of Ceratocystis sp. Isolated from Various Hosts on Acacia crassicarpa Seedlings Lutfiana, Eva; Rahayu, Sri; Hardiyanto, Eko Bhakti; Indrioko, Sapto; Gafur, Abdul
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.9940

Abstract

Acacia crassicarpa is widely grown in forest plantations with Acacia mangium and Eucalyptus spp. Ceratocystis sp. is identified as a significant pathogen, causing substantial damage to A. mangium plantations as well as infecting A. crassicarpa, Eucalyptus spp., and several fruit trees such as Lansium spp., which led to yield losses. Research reported that isolates of Ceratocystis derived from various hosts have varying pathogenicity. Therefore, this research aimed to characterize the morphological properties and evaluate pathogenicity levels of eight Ceratocystis isolates (AC1, AC2, AM1, AM2, AM3, AM4, EP1, and LA1) on A. crassicarpa seedlings. The investigation occurred in the shade house and at the Faculty of Forestry UGM, Forest Health and Protection Laboratory in Yogyakarta. Four-month-old A. crassicarpa seedlings were artificially inoculated with Ceratocystis isolates from A. mangium, A. crassicarpa, Eucalyptus spp., and Lansium spp. hosts. The experiment employed a completely randomized design with four replicates. The results showed that characteristics of the isolates varied, but the differences in perithecium size were statistically insignificant. EP1 had a lighter color (greyish olive) than the other isolates. It was the most virulent and had a high potential for use in screening the resistance of A. crassicarpa clones against Ceratocystis sp. in the future.
Problem Identification and Conflict Resolution Strategies for Industrial Forest Plantation Licensing in Sekadau Forest Management Unit Hardiansyah, Gusti; Mardin Rachmad, Harul; Rifanjani, Slamet; Fitriani, Afni
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.12221

Abstract

This research aimed to map tenure conflicts within the Industrial Forest Plantation (HTI) in the Sekadau Forest Management Unit (KPH) and to thoroughly analyze effective strategies for addressing these conflicts. The study employed Rapid Land-Tenure Assessment (RaTA)and Dispute Style Analysis (AGATA) utilizing the Thomas-Kilmann Instrument. The results revealed three distinct disputing styles: Agitation (Karang Betung-Kenyabur, Teluk Kebau-Merabu Jaya), Compromise (Tembesuk-PTWSP), and Collaboration (Nanga Engkulun-PTWSP). Based on these findings, the research recommends tailored strategies for conflict resolution. Neutral mediation strategies are suggested to reduce tensions in agitation-style disputes, while facilitation strategies can help achieve mutually beneficial solutions in compromise-style cases. Trust-building initiatives are advised to enhance collaboration in resolution efforts. Additionally, this research emphasizes the integration of corporate social responsibility (CSR) programs, including forestry partnerships, agroforestry initiatives, non-timber forest product development, and livestock assistance, to provide interim economic benefits. These approaches combine positive law, customary law, and multi-stake holder engagement to effectively resolve conflicts while advancing community welfare and promoting sustainable development.
Diversity of Order Lepidoptera at Different Levels of Canopy Covers Around Panten Camping Ground, Mount Ciremai National Park Fariha, Ria Raudhatul; Ramadhania, Laila; Fahmawati, Putri Dewi; Supriyadi, Supriyadi; Nufus, Malihatun
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.16212

Abstract

Mount National Ciremai Park has abundant biodiversity, including the insect order Lepidoptera. Therefore, this research aimed to determine the diversity of order Lepidoptera based on different levels of canopy cover around Panten Camping Ground, Mount Ciremai National Park. This research used an exploration survey using a 100 m transect line and three observation transect lines with different levels of canopy cover. Based on the result of observation, 225 individual Lepidoptera were identified from 26 species and 8 families. The diversity of Lepidoptera showed that 4, 5, and 7 families were at the open, moderate, and closed canopy covers, respectively. Open canopy areas had the most significant number of species, namely 18. In addition, the most commonly found species was Bradina diagonalis, with 82 individuals. The diversity index value (H') of the order Lepidoptera around Panten Camping Ground was recorded at 1.62, 2.14, and 2.08 in open, medium, and closed canopy areas, respectively. The diversity index results showed that the levels of canopy cover did not affect insect diversity, while temperature, humidity, plant species, and springs had a significant influence.
Determination of Harvesting Cycle of Gliricidia sepium for Bioenergy Using Growth Model Diono, Dimas Wahyu; Rusolono, Teddy; Bahruni, Bahruni
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.16243

Abstract

The emission of CO2 is increasing due to the high population and standard of living, particularly from the energy sector. Renewable energy from forest resources, such as fuelwood, can contribute to these emissions' reduction. Therefore, this research aimed to generate a growth model to determine the harvesting cycle of Gliricidia sepium as a source of raw material for bioenergy. The model generation employed regression technique and used stand inventory data. The growth model for Gliricidia sepium was Y = 157.46e (-3.342/A), where age (A) was the independent variable. The optimum harvest occurred at 4 years with a biomass production potential of 68.28 tons/ha. This research provided valuable information for decision-making in managing the industrial forest plantation of Gliricidia sepium for bioenergy.
Contested Policy of “Forest Areas with Special Management”: A Case Study of the Permit Holder in Kediri Regency, East Java Yuana, Listia Hesti; Afiff, Suraya Abdulwahab
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.16387

Abstract

The Government of Indonesia introduced a Special Management Forest Areas policy to facilitate changes in forest governance in Java, particularly over approximately 1.1 million hectares of forestland that were previously under Perhutani's management. Therefore, this research aimed to examine the practical benefit of the policies for communities critically. The designation of forest communities as key stakeholders paradoxically risked further marginalization. This research applied a patchwork ethnography approach and relied on participant observation and in-depth interviews. Although Perhutani no longer held official authority, various strategies were implemented at site levels to maintain access to forest resources. During the transition period, forest communities struggled due to a lack of clear assistance. As a new actor, the Forestry Service Branch (CDK) could not provide intensive assistance because the communities had not yet undergone the transformation required to obtain legal recognition under the latest policies. The results showed that good intentions in policies to support marginalized communities were insufficient. For the purpose of justice, a strong commitment at the grassroots level was needed through intensive assistance to ensure that policies were not merely rhetorical but truly provided tangible benefits.
Forestry Spatial Planning Policy Direction: Concerning the Long-Term National Development Plan 2025-2045 Margono, Belinda Arunarwati; Purwanto, Judin; Nugroho, Sigit; Widiyatno, Widiyatno
Jurnal Ilmu Kehutanan Vol 19 No 1 (2025): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jik.v19i1.18426

Abstract

The role of forests is related to the challenges of balancing food, water, and energy, which are likely to increase significantly in the near future. A science-based conception is needed to support the correct application of forest adequacy in terms of forestland and forest cover over a watershed or island to address these challenges and to strengthen the role of forests in performing economic, social, and ecological functions, mainly in the context of water, food, and energy security. However, the minimum extent of forest over land is still debatable. The determination of what is named forest adequacy, in terms of both forestland (kawasan hutan) and forest cover (penutupan hutan), needs to consider roles of biogeophysical factors, environmental carrying capacity, watershed characteristics, along with flora and fauna diversity. Spatial planning plays a crucial role in implementing the concept of determining the forest's adequacy based on spatial considerations to support the Forestry Spatial Planning Policy in the 2025-2045 National Development Plan to ensure the future security of water, food, and energy supply.

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