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Ni Putu Diana Mahayani
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jik@ugm.ac.id
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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 10 Documents
 1 
Search results for , issue "Vol 19 No 2 (2025): September" : 10 Documents clear
Comparison of Microclimate Condition and Thermal Comfort Levels between Public and Private Green Open Space: A Case Study of Denggung Park and Gadjah Mada University Wisdom Park Ghaniyy, Abi Abdillah Niko; Ningrum, Diah Fitri Astuti
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.v19i2.16746

Abstract

Rapid urban population growth has driven extensive economic, residential, educational, and cultural development, leading to the conversion of green spaces into built-up areas. This conversion interferes with the regulations of air temperature and Thermal Humidity Index (THI). This research investigated the characteristics of green open spaces at Denggung Park and Gadjah Mada University Wisdom Park, examining their effects on microclimate conditions and the relationship between green space conditions and THI levels. The methods included a literature review, field measurements of vegetation and microclimate variables, tree crown profile analysis using Sexl-FS, and Spearman Rank Correlation. Results showed that tree density has a direct relationship with THI. The private green space (Wisdom Park), with 126.33 trees/ha, achieved superior THI compared to the public space (Denggung Park), with 49.01 trees/ha. The Gadjah Mada University Wisdom Park's more complex canopy structure and optimal canopy connectivity significantly enhanced THI. Spearman Rank Correlation analysis revealed strong relationships between the tree density and thermal comfort level for Denggung Park (-0.52) and for Gadjah Mada University Wisdom Park (-0.69), with a p-value < 0.05. These findings confirm the critical importance of optimizing vegetation structure and density to support thermally comfortable urban environments.
Pelestarian Hutan dalam Budaya Pertanian Nugal oleh Masyarakat Adat Dayak Kuhin di Desa Sapundu Hantu, Kabupaten Seruyan, Kalimantan Tengah Mirza, M Yusril
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.v19i2.20618

Abstract

The Dayak Kuhin community, native to Central Kalimantan Province, had a traditional agricultural culture called nugal, which was carried out once a year. Nugal was considered an agricultural culture that involved opening fields in the forest, but it was often associated with causing forest fires. To clarify the realities of the practice, this research aimed to explore the nugal process and associated forest conservation efforts by taking a case study of the Sapundu Hantu Village, Seruyan Hulu District, Seruyan Regency, Central Kalimantan Province. This research employed an ethnographic method and a thick description approach, utilizing qualitative data collected through participatory observation, in-depth interviews, archival records, and literature reviews. The results revealed that the nugal agriculture embodied rich local knowledge about forest conservation efforts reflected in each process. The community practiced the nugal agriculture carefully with adherence to customary norms that regulated forest management. The findings of this study address the prevailing negative stigma associated with the nugal culture as practiced by the Dayak Kuhin community.
Habitat Potensial Gajah Sumatra (Elephas maximus sumatranus) di Resort Rawa Bunder, Seksi III Kuala Penet, Taman Nasional Way Kambas, Lampung Subeno, Subeno; Hariyanto, Awang; Satria, Ryan Adi
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.v19i2.7724

Abstract

Way Kambas National Park (WKNP) in Lampung serves as a critical habitat for the endangered Sumatran elephant (Elephas maximus sumatranus). However, the area has increasingly experienced human-elephant conflicts, particularly at the Rawa Bunder Resort. This research aimed to assess the biophysical characteristics and map the distribution of potential elephant habitats within the resort area. Field data were collected using 70 nested plots distributed along established transects and analyzed through a modified sampling protocol. An Agglomerative Hierarchical Cluster (AHC) analysis was employed to classify the habitats into suitable, moderately suitable, and less suitable categories. The georeferenced plot data were processed using ArcGIS 9.3 to create a habitat suitability map. The findings indicated that 24% of the plots were classified as suitable, 33% as moderately suitable, and 43% as less suitable. The suitable habitats were predominantly located in lowland forest areas, which represent a relatively small proportion of the total area. To expand suitable habitats and mitigate human-elephant conflicts, strategic habitat management measures, such as forest restoration and targeted enrichment, are essential. These results provide a spatial framework for conservation planning for elephant habitats in Way Kambas and other fragmented landscapes.
Pengaruh Penyimpanan Jangka Panjang Berbasis Zeolit terhadap Kepadatan Spora dan Potensi Propagul Mikoriza pada Tanaman Sorgum Istiqomah, Fatimah Nur; Novanto, Praditya Rizqi; Janati, Rahayu Ning
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.v19i2.10085

Abstract

The research aimed to investigate the impact of storage duration (20 years versus less than one year) on the quantity of mycorrhizal spores and propagules within zeolite carrier media, using sorghum as the host plant. Spores were quantified through a sieving method and subsequent microscopic observation, while the numbers of propagules were determined through serial dilution down to 10-7. Following this, sorghum was cultivated, and root infection was evaluated. The findings indicated that mycorrhizae stored for less than one year yielded 416 spores/10 g and 620,000 propagules/g, compared to 259 spores/10 g and 170,000 propagules/g for those stored for twenty years. The identified spore types in both age groups included Acaulospora spp. 1, Acaulospora spp. 2, Glomus grape, and Glomus manihotis. This result suggested that the storage of mycorrhizae should be limited to less than one year to preserve a high number of spores and propagules.
Pemodelan Kesesuaian Habitat Mandar Gendang (Habroptila wallacii) di Pulau Halmahera, Indonesia Aldiansyah, Septianto; Madani, Ilyas; Risna, Risna; Saputra, Randi Adrian
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.v19i2.18437

Abstract

Drummer Rail (Habroptila wallacii) is a bird species of the Rallidae family with limited ecology and behavior information. The information on the distribution of H. wallacii in Halmahera Island is crucial as it is classified as a vulnerable species. Therefore, this research aims to predict the potential distribution of H. wallacii on Halmahera Island using the Maximum Entropy (MaxEnt) modeling method, which projects species distributions based on presence data and environmental variables. A total of 47 data points on H. wallacii encounters were obtained from open-access data sources and field observation. The variables used were land use land cover (LULC), normalized difference vegetation index (NDVI), elevation, slope, and proximity data (river). The results showed that 33.52% of the area was very suitable for H. wallacii habitat, 32.97% was suitable, and 33.50% was unsuitable. Approximately 29.39% of the suitable habitat was located in limited-production forest areas, while conservation areas covered only 5.19%. These results suggested the need to review spatial planning policies to increase protection of the natural habitat of the species. The results could serve as considerations and recommendations for the Ministry of Environment and Forestry regarding the future management of forest areas for these species.
Perencanaan Edu-Ekowisata Berbasis Atraksi Wisata di Kebun Percobaan dan Penelitian Jonggol, Institut Pertanian Bogor (IPB) University Hikmah, Ziyadatul; Muntasib, E.K.S. Harini; Kosmaryandi, Nandi
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.v19i2.18797

Abstract

The Jonggol Teaching and Research Farm serves as a field laboratory for Institut Pertanian Bogor (IPB) University, featuring a diverse array of agricultural and livestock systems, including plantations of oil palm, cassava, sorghum, and indigofera, as well as sheep and cattle farming, alongside agricultural and livestock processing industries. The research aimed to develop an edu-ecotourism plan that leverages existing tourist attractions. The planning process involved preparation, data collection through field surveys, resource inventory, and interviews with managers. Employing both descriptive and spatial analyses, the research synthesized concepts and site planning. The data analysis encompassed physical, biophysical, tourism, and management aspects. Findings revealed that edu-ecotourism plays a vital role in tourism planning, functioning as an educational resource for environmental character development and a means to showcase agricultural innovations. The research identified ten tourist attractions at the Jonggol Teaching and Research Farm, which include the Sorinfer factory, various plantations, field laboratories, guest houses, and natural resources (31 flora, 2 cultivated animals, and 20 wildlife species), as well as notable topographical, geological, and soil variations, complemented by visual beauty. The resulting edu-ecotourism plan encompassed designated tourist spaces, circulation plans, green planning zones, and activity plans that incorporate interpretation services, such as attraction maps.
Modal Sosial Masyarakat dalam Konservasi Daerah Aliran Sungai Poso di Provinsi Sulawesi Tengah, Indonesia Massiri, Sudirman Daeng; Hamzari, Hamzari; Pribadi, Hendra; Naharuddin, Naharuddin; Malik, Adam; Rauf, Abdul
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.v19i2.17664

Abstract

Community-based collaborative watershed governance offers a potential solution to the limitations of government-led management by leveraging substantial social capital to sustain watershed functions. Therefore, this research aimed to investigate community social capital in watershed conservation and formulate strategies to strengthen it, promoting the sustainability of Poso Watershed. The investigation was conducted in Tentena and Sawidago Villages in Poso Watershed, using interviews with households and key informants, focus group discussions, and field observations. This research employed descriptive quantitative analysis to assess community social capital characteristics and levels, while applying SWOT (strengths, weaknesses, opportunities, and threats) analysis to develop strategies for strengthening social capital. The results showed that high cognitive-social capital required substantial structural social capital to generate collective action in watershed conservation. Weak structural social capital was reflected in the community’s limited understanding of formal rules and low involvement in organizations related to forest and watershed conservation, leading to weak solidarity and collective action. Strengthening social capital required harnessing the role of the Watershed Management Coordination Forum, which engages government and stakeholders in community-based collaborative watershed management. This primary strategy should be supported by improving communication, socialization, counselling, increasing community participation, and fostering the role of local institutions in watershed conservation.
Proyeksi Cadangan Karbon Berbasis Data Empiris dalam Agroforestri untuk Mitigasi Perubahan Iklim Kemal Adam, Muharam; Karuniasa, Mahawan; Mahardhito Adhitya Wardhana, Yuki
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.
Aktivitas Mikofagi dari Kelas Agaricomycetes di Hutan Kampus Institut Pertanian Bogor, Indonesia Dianita, Ici; Syahbani, Noer; Putra, Ivan Permana
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.v19i2.16455

Abstract

Macrofungi are a nutraceutical food containing high protein, low fat, and are rich in minerals that play an important role in animal physiology, particularly as food supplements because of their distinctive aroma. This research aimed to provide information on the macroscopic and microscopic characters of several macrofungi from the Agaricomycetes consumed by animals, and to describe their antibacterial potentials. This research employed opportunistic sampling, mushroom identification and description, proximate analysis, and antibacterial assays. A total of seven mushrooms of the Agaricomycetes were described, namely Lentinus sajor-caju, Gymnopilus sp., Marasmius sp., Phallus indusiatus, Panus lecomtei, Termitomyces sp., and Schizophyllum commune. Lentinus sajor-caju had carbohydrate, fiber, protein, fat, ash, and moisture contents of 72.02%, 30.03%, 11.63%, 1.37%, 4.26 %, and 10.74%, respectively. The antibacterial assay of L. sajor-caju indicated that both 0.8 mg/ml and 1 mg/ml concentrations showed no significant difference in activity. However, both exhibited potent inhibitory effects against Candida albicans. Lentinus sajor-caju extract inhibited Enteropathogenic Escherichia coli (EPEC) at a concentration of 5 mg/ml. In comparison, a dose of 0.8 mg/ml effectively suppressed the growth of Methicillin-resistant Staphylococcus aureus (MRSA). This current research provided a basic framework for future mycophagy analysis and bioprospection in Indonesia.
Persepsi Ancaman dan Tren Sumber Daya Hutan dan Faktor yang Mempengaruhi Pembalakan di Hutan Omo, Negara Bagian Ogun, Nigeria Adedigba, Bolaji Kofoworola; Oyetayo, Oyelowo; Olukemi, Adebayo Dorcas; Olaitan, Ahmed Ahmed; Olubunmi, Oke Deborah; Bukola, Adesogan Damilola
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.v19i2.19218

Abstract

This research investigated rural households' views on threats to sustainable forest management and the factors influencing logging in the Omo Forest Reserve Area, which has been experiencing deforestation and unsustainable utilization. The researchers interviewed 300 household heads and validated 276 responses for Ordinary Least Squares Regression and quantitative summaries, including percentages, frequencies, and bar charts. The results showed that most households were male-headed (92.8%) and married (87.3%), with primary and secondary education accounting for 29.7% and 39.2%, respectively. Male-headed households made up 92.8%, and 7.2% were female-headed households. Approximately 50.7% considered logging a significant threat to forest sustainability, while 48.6% viewed the failure to replant as a serious problem. A total of 18.48% perceived indiscriminate grazing by nomadic herders as a serious threat. Other factors included urbanization, agriculture, and fuelwood collection, all of which posed threats to forest management. Regression analysis yielded a coefficient of determination (R²) of 0.67, suggesting that sex, secondary occupation, age, and length of settlement in forest areas significantly influenced wood logging. Measures such as awareness campaigns, discouraging indiscriminate logging, and enforcing policies are recommended to address these challenges.

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