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INDONESIA
Indonesian Journal of Forestry Research
Published by Asosiasi Peneliti dan Teknisi Kehutanan dan Lingkungan Hidup Indonesia
ISSN : 23557079     EISSN : 24068195     DOI : https://doi.org/10.59465/ijfr
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Journal of Forestry Research (IJFR) was first published as Journal of Forestry Research (JFR) in November 2004 (ISSN 0216-0919). The last issue of JFR was published in December 2013. The Journal has been accredited by the Indonesian Institute of Sciences since 2008 and by the Ministry of Research, Technology and Higher Education since 2018. IJFR has also obtained accreditation “Peringkat 1” or “Rank 1” from the Ministry of Research and Technology/National Research and Innovation Agency in 2020 (Decree Number: 200/M/KPT/2020). IJFR is issued in one volume per year, including two issues delivered in April and October. IJFR was previously published by the Research, Development and Innovation Agency - the Ministry of Environment and Forestry, formerly known as Forestry Research and Development Agency (FORDA) - the Ministry of Forestry, Republic of Indonesia. Due to national policy change in research institution, the Ministry would no longer manage and publish the IJFR. Therefore, since 2023, the management and issuance of the IJFR is handed over to the Association of Indonesian Forestry and Environment Researchers and Technicians (APTKLHI). Consequently, the logo of the publisher was updated accordingly. The Indonesian Forestry Research Journal is a scientific publication of the Association of Indonesian Forestry and Environment Researchers and Technicians (APTKLHI). This journal publishes the latest results of main findings and synthesis articles that contain significant contributions to science and theoretical applications in fields related to the scope of forestry research.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 177 Documents
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AN ATTEMPT TO CONSERVE A VULNERABLE TREE SPECIES OF Santalum album L. THROUGH MICROPROPAGATION Gurusamy, Manikandan; Charlie, Karolinsobina; Palanisamy, Kalaimathi; Chelladurai, Divya; Katerere, David R
Indonesian Journal of Forestry Research Vol. 11 No. 1 (2024): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2024.11.1.81-89

Abstract

A rare kind of tropical plant in the Santalaceae family is Santalum album. The active ingredient in S. album, santalol, is also referred to as sandalwood oil and is highly prized in the fragrance business for its fixative qualities and pleasant, enduring scent. Out of all the species in the genus Santalum, S. album has the greatest oil concentration (about 6%). The wild plants are overharvested for their wood, which is used to make santalol, as well as for other uses including woodcarving and traditional medicine. S. album is an easily hurt plant. Thus, the creation of an in vitro mass propagation protocol for this valuable species is necessary in order to generate homozygous clones with large yields for the establishment of sandalwood plantations. In this study, a full-strength MS medium supplemented with varying concentrations of BAP and Kn (0.5-2.5 mg/l) was used to cultivate the shoot tip and intermodal portions of S. album that were collected from the wild. The maximum shoot development (4.50±0.50) occurred at a BAP concentration of 1.5 mg/l. IBA and IAA were added to the rooting medium along with the developing shoots. IBA (2.0 mg/l) had the highest mean number of roots (4.90±0.25) and root length (5.75±0.47 cm). Shoots that had been successfully rooted were moved to the field to harden. According to the current study, MS medium with 1.5 mg/l of BAP and 2.0 mg/l of IBA is an appropriate technique for micropropagating and conserving S. album is fragile tree species.
IMPACT OF FOREST FIRES ON PORTUGUESE FOREST ECOSYSTEM AND ITS NATIONAL EMISSIONS BUDGET Pavel, Muha Abdullah Al; Marques, Mario; Mukta, Kamrun N
Indonesian Journal of Forestry Research Vol. 11 No. 1 (2024): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2024.11.1.91-103

Abstract

The study highlights the significance of the forestry industry in Portugal, and delves into the economic, social, and environmental ramifications of forest fires on this vital sector. With a specialization in forest services, the country's healthy and sustained growth is heavily reliant on this sector. The study is a literature review analysis of carbon sink-source relationships and related uncertainty in the Portuguese forest ecosystem. We found wide literature research that Portugal lost 4% of its total tree cover due to forest fires in 2016-2017. The study concludes that the drought and forest fires suffered by the country throughout the years have had a considerable impact on the national emissions budget. Forest fires have wielded a significant impact on the nation's overall carbon emissions, representing 10% during the years with the highest incidence and averaging 2.7% over 25 years. Prior to 2014, the country was making significant progress towards achieving its National Plan on Climate Change (PNAC) 2020 reduction target, with emissions projected to fall between 18-23% below 2005 levels. These factors are putting country in a non-compliance position with the PNAC 2020 commitment target (which is the same target as for the Kyoto Protocol 2nd Commitment Period).
ASSESSING THE WILLINGNESS TO PAY FOR CONSERVATION AND MANAGEMENT OF WETLANDS AT JAGDISPUR RESERVOIR IN KAPILVASTU DISTRICT OF NEPAL Gyawali, Rama; Sharma, Gyan Bandhu; Shrestha, Jiban
Indonesian Journal of Forestry Research Vol. 11 No. 1 (2024): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2024.11.1.127-138

Abstract

Wetlands are one of the world's most productive ecosystems. They have significant ecological, economic, cultural, and recreational significance. However, wetlands are being misused and degraded; therefore, wise and sustainable use of wetlands, conservation and management of wetlands resources are critical at the local level. Community-based conservation is a method of managing wetlands near settlements sustainably. The objective of this study was to determine local people's willingness to pay (WTP) for community-based conservation and management activities, as well as the factors which influence it, at the Jagdispur Reservoir in Nepal's Kapilvastu district. A total of 62 households were surveyed. Household surveys and key informant interviews were conducted. Contingent valuation was used to elicit WTP, while regression analysis identified significant determinants. Thirteen provisioning, regulating, cultural and supporting services were identified, including irrigation, fisheries, tourism and biodiversity. Of 62 households, 67% expressed WTP averaging NRs 3,351 (US $ 25.38) annually. WTP was higher for proximal households, reflecting greater dependence. Cash payments dominated, but labor contributions were also substantial. Age, income, participation in conservation, and distance from wetlands positively and significantly influenced WTP. Whereas education, gender, ethnicity and number of family members did not. The findings indicate a high value placed on sustaining wetland services, justifying investment in conservation and wise use. Follow-up research on governance, benefit sharing and sustainable financing is recommended to translate WTP into effective action. Overall, the results provide important baseline data to guide policies and collective action for wetland stewardship.
POLARIZATION OF LOCAL COMMUNITY ORIENTATION TO THE DEVELOPMENT OF ECO-RURAL TOURISM IN KERINCI REGION, JAMBI PROVINCE, INDONESIA Bonanza, Occy; Avenzora, Ricky; Malihah, Elly; Hermawan, Rachmad
Indonesian Journal of Forestry Research Vol. 11 No. 2 (2024): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2024.11.2.171-188

Abstract

Rural areas are increasingly the focus of exploration by various stakeholders. However, local communities, as landowners in these regions, often do not reap the full benefits. This issue stems from their limited involvement in regional development and a lack of awareness about ongoing projects. Local communities play a crucial role in the success of rural development, and understanding their attitudes is vital.This study aimed to explore local community attitudes toward eco-rural tourism development in Kerinci Regency, Jambi Province. A closed-ended questionnaire, designed with a "One Score One Indicator" system, assessed various factors including socio-cultural aspects, conservation, ethnic politics, economics, regional development, tourism, and landscape ecology across six villages. The analysis of local community orientation was conducted using quantitative descriptive methods and One-Way ANOVA statistical tests.Results indicated a positive polarization in community attitudes across all villages, showing strong support for eco-rural tourism. By focusing on the identified indicators, local communities are motivated to collaborate and enhance their rural areas through eco-tourism initiatives. The findings suggest that these communities possess significant potential to develop their regions in line with eco-rural tourism principles. Additionally, the insights gained can inform the creation of eco-rural tourism programs that emphasize community involvement and leverage local strengths. This approach aims to ensure that rural communities benefit from the exploration and development occurring in their areas.
BIOACTIVITY ANALYSIS of Annona glabra L. SEED EXTRACTS FOR WOOD PROTECTION AGAINST Termites (Cryptotermes cynocephalus Light. AND Coptotermes curvignathus Holmgren.) Priadi, Trisna; Chotimah, Nurul; Ismanto, Agus
Indonesian Journal of Forestry Research Vol. 8 No. 2 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.2.127-134

Abstract

Pond apple (Annona glabra L.) belongs to the family of Annonaceae. The seed of A. glabra contains bioactive substance that is toxic to some organisms, however the effectiveness to control wood degrading termites has not yet been scientifically reported. This research analyzes the efficacy of A. glabra seed extract to wood degrading termites. Seed extraction was conducted using n-hexane and ethyl acetate. The paper disc test showed that the extract of A. glabra is toxic to Cryptotermes cynocephalus (dry-wood termites) and Coptotermes curvignathus (subterranean termites). The higher extract concentration (up to 63%) resulted in a higher termite mortality (up to 100%) and lower weight loss of paper sample (less than 1%). Ethyl acetate extract of A. glabra seeds has a better toxicity effect than n-hexane extract against dry wood termites and subterranean termites.
THE POLICY MODEL FOR SUSTAINABLE COMMUNITY FOREST: A FACTOR ANALYSIS Sukwika, Tatan; Fransisca, Lidya
Indonesian Journal of Forestry Research Vol. 8 No. 2 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.2.135-157

Abstract

Developing and maintaining forest sustainably is a way to support sustainable development. From the technical point of view, the sustainability of community forest could be articulated not only based on the three aspects i.e. economic (ECO), social culture (SOC), ecology (EGY), but it could also include dimensions of legal and institutional (LIT), as well as accessibility and technology (ACT). This study aims to determine variables of sustainability dimensions that have a direct positive effect on the sustainability of the community forests (SCF), to identify variables that affect SCF and variables of sustainability dimensions that have a major effect on SCF. This study is aiming for 70 samples of forest farmers’ group in Bogor Regency. The respondents were purposively selected based on consideration of the criteria for forest farmer groups namely beginner, intermediate, and advanced. The analysis was conducted based on PSL-SEM tools. Sustainability dimensions of ECO, EGY, LIT, and ACT have a significant positive direct effect on SCF. The mediational hypothesis testing suggested that there is a partial mediation from ECO and EGY to SCF, which is consistent and have a positive value. Based on the coefficient value of the total-effect, among the five dimensions, ecology value was the biggest and the most effect. The policy implies that the ecological aspects considered the importance and strategy. Therefore, the value and productivity of the community forest structure and composition need to be maintained.
FIXATION PROCESS OF LAMINATED BAMBOO COMPRESSION FROM CURVED CROSS-SECTION SLATS Darmawan, Teguh; Bahanawan, Adik; S. Adi, Danang; Dwianto, Wahyu; Nugroho, Naresworo
Indonesian Journal of Forestry Research Vol. 8 No. 2 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.2.159-171

Abstract

Removing the outer part of bamboo for manufacturing flat bamboo lamination has disadvantage on the density of the product. The purpose of this experiment was to investigate the fixation of compressed bamboo from curved cross-section slats. The compression of bamboo slats using densification technique was aimed for uniform density. Furthermore, steam treatments were conducted to fix the deformation. The compressed bamboo slats revealed that the density of the samples at the bottom parts increased from 0.4–0.56 g/cm3 to 0.89–1.05 g/cm3 after pressing with a compression level between 46.98–63.97%, while the samples in the middle parts increased from 0.7–0.83 g/cm3 to 1.02–1.18 g/cm3 with the compression level of 32.92–41.5%. These results were slightly higher than that of the upper parts, which was between 0.91–0.98 g/cm3. The recovery of set decreased and the weight loss increased with increasing temperature and steam treatment time. Fixation of compressive deformation could be achieved at 160°C within 60 minutes. The bottom parts of samples experienced a slightly greater weight loss compared to the middle parts, i.e. 8.38% and 7.49%, respectively. The anatomical structure of bamboo tended to deform during densification process. Furthermore, the steam treatments affected the colour of densified bamboo which became darker. From this experiment, it can be concluded that the manufacture of laminated bamboo from bamboo slats can be uniformed in strength by equalizing the density at the bottom and middle with the upper parts through the densification technique.
IMPORTANCE OF SOCIAL CHARACTERISTIC OF COMMUNITY TO SUPPORT RESTORATION PROGRAM IN PROTECTION FOREST Wulandari, Christine; Budiono, Pitojo; Iswandaru, Dian
Indonesian Journal of Forestry Research Vol. 8 No. 2 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.2.173-186

Abstract

A restoration program is needed by West Lampung District, because 80% of the protected forests in this district have been damaged. Bina Wana (BW) Community Forest Group (CFG) has been successful in carrying out restoration program of 465 ha of Bukit Rigis protected forest. It resulted in an 80% increase in its members' income and an increase by 2.58% of the forest cover. To maintain the success of a sustainable restoration program, high commitment from the community is needed. This research has been conducted in June-July 2019 at West Lampung District, Lampung Province, Indonesia. The objective of this research is to analyse the social variables that affect restoration in the protection forest. The dependent variable is income and independent variables consist of respondents’ characteristics as individuals and social characteristics of the community. Based on the multiple regression linear analysis from 75 respondents, it was found that the significant variables for the sustainability of the restoration of Bukit Rigis protected forest are as follow: age, sex, education, status in CFG, distance from home to CF areas, social aids and social capital. Existence of the youth groups namely Himpunan Pemuda Peduli Hutan dan Lingkungan and Melati Women Forest Farmer Group (WFFG) plays an important role in implementing the restoration program. Establishment of HPPHL will ensure regeneration in maintaining the sustainability of restoration achievements. The role of WFFG is also important because their households’ income is supported by WFFG and enables the BW CFG members to be more concentrated in maintaining forest sustainability.
THE EFFECT OF CLIMATE ON RADIAL GROWTH OF SCOTS PINE (Pinus sylvestris L.) IN A COASTAL MIXED STAND IN KAPISUYU, BARTIN, TURKEY Barış Özel, Halil; Yaman, Barbaros; Varol, Tuğrul
Indonesian Journal of Forestry Research Vol. 8 No. 2 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.2.187-197

Abstract

Scots pine is geographically the most widespread pine species in the world, and it shows different growth responses to climate and environmental factors in diverse ecological sites. We studied both the stand dynamics and climate-growth relationships of scots pine in isolated coastal stand (recently found) in the Western Black Sea Region of Turkey. The homogeneity index of this stand has varied between 1.92–3.56. In growth-ring analyses, after cross-dating of individual chronologies, COFECHA and ARSTAN software were used respectively for chronology quality control and standardization (detrend). In this way, a 58-year-long chronology (1959-2016) of scots pine was constructed. In addition, DENDROCLIM software was used for investigating scots pine’s radial growth-climate relationships. Mean sensitivity changed from 0.163 to 0.331, with a mean of 0.183. Mean correlation among trees and signal to noise ratio were 0.389 and 7.012 respectively. In terms of the effect of precipitation on the radial growth of scots pine in this site, the correlation coefficients were 0.43 (p<0.05) for December of the previous year and 0.41 (p<0.05) for July of the current year. For all the other months, precipitation had a non-significant effect. As for the maximum and mean air temperature, the correlation coefficients were 0.36 (p<0.05) and 0.40 (p<0.05) for February, and 0.40 (p<0.05) and 0.42 (p<0.05) for March, respectively. However, on the radial growth, while the maximum temperature in August had a negative effect (r= -0.26; p<0.05), minimum temperatures in February, March and July had a positive effect (r= 0.39, 0.40 and 0.34 respectively; p<0.05).
FORM FACTORS AND VOLUME MODELS FOR ESTIMATING TREE BOLE VOLUME OF MAHOGANY AT COMMUNITY FORESTS IN CENTRAL JAVA Tiryana, Tatang; Khasanah, Lailatul; Priyanto, Priyanto; Rahaju, Sri
Indonesian Journal of Forestry Research Vol. 8 No. 2 (2021): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2021.8.2.199-211

Abstract

Form factors and volume models are often be used in the estimation of tree volumes. However, a few studies have developed and evaluated the accuracy of form factors and volume models for estimating tree volumes of community forests. This study aimed to formulate form factors and volume models and assess their prediction accuracy for estimating tree bole volumes of mahogany at community forests in Central Java. This study used 120 sample trees with diameters of 6–38 cm to formulate artificial and absolute form factors and to develop tree bole volume models. These form factors coupled with bole height and total height were used in simple volume equations. Regression analyses were used to develop volume models using the diameter and total height as predictors. The simple volume equations and volume models' prediction accuracy was evaluated using a cross-validation dataset and independent dataset (30 sample trees). The artificial form factor (0.68 ± 0.11) of mahogany, which was higher than the absolute form factor (0.46 ± 0.09), provided accurate estimates of tree bole volumes when it was used with the bole height instead of the total height. The volume model that uses diameter and total height produced the most accurate estimates, while the volume model that uses diameter alone provided the most practical yet reliable tool for estimating tree bole volumes of mahogany. The results of this study are useful for improving community forest management.

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