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INDONESIA
Indonesian Journal of Forestry Research
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : 23557079     EISSN : 24068195     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Journal of Forestry Research (IJFR) was first published as Journal of Forestry Research (JFR) on November 2004. The last issue of JFR was Volume 10 Number 2 published on December 2013. The Journal of Forestry Research has been accredited by the Indonesian Institute of Sciences since 2008. The last accreditation was on 21 June 2013 (accredition number: 538/AU3/P2MI-LIPI/06/2013) which will be valid until 2016. IJFR will be issued in one volume every year including two issues which will be delivered every April and October. This journal is published by Forestry Research and Development Agency (FORDA), Indonesia.
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Articles 9 Documents
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Search results for , issue "Vol 10, No 1 (2023): Indonesian Journal of Forestry Research" : 9 Documents clear
PREDICTION OF SUSCEPTIBILITY FOR OLD TREES (> 100 YEARS OLD) TO FALL IN BOGOR BOTANICAL GARDEN Faozan Indresputra; Rizmoon Nurul Zulkarnaen; Muhammad Rifqi Hariri; Fitri Fatma Wardani; Prima Wahyu Kusuma Hutabarat; Dwi Setyanti; Widya Ayu Pratiwi; Lutfi Rahmaningtiyas; Dina Safarinanugraha
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.1-19

Abstract

Since the establishment of the Bogor Botanical Garden (BBG) in 1817, the protection of the tree collections, even the loss of aging trees (> 100 years old), has been one of its most important tasks. Abiotic factors such as intense extreme events, i.e., heavy rainfall and strong winds, as well as biotic factors from human activities, pests and diseases, and the deterioration of the health of the plant collection with age, has threatened the survival of the old tree collections. As the BBG has many functions for conservation and human ecological activities, tree fall accidents have become a primary concern in preventing the loss of biodiversity and human life. Therefore, disaster map zonation is required to prevent and minimize such accident together with a prediction of which individual specimen is likely to fall. We examined the health of 154 to determine the falling probability of 1106 aged trees based on several factors that might cause the fall in the past and to make model predictions generated by nine supervised machine learning algorithms to get a binary value of falling probability and then classified into four categories (neglectable, low, moderate, and high probability of falling). Inverse Distance Weighted interpolation method was used to depict a zone map of trees prone to fall in BBG. We found 885 susceptible trees, of which 358 individual trees were highly susceptible to fall (red zone color), dominated by families from Fabaceae, Lauraceae, Moraceae, Meliaceae, Dipterocarpaceae, Sapindaceae, Rubiaceae, Myrtaceae, Araucariaceae, Malvaceae, and Anacardiaceae. This result was based on Random Forest model due to its highest accuracy among algorithms and its lowest false negative (FN) value. The FN value was important to minimize error calculation on aged trees that were not prone to fall but turned out to be prone to fall. The dominant factor contributing to high falling intensity was hollow and brittle on the tree trunks where many were found to have pests inside damaged parts such as termites, wood-borers, and bark-eaters. Several trees were found to have combined damages with more than a single causative factor that exacerbated tree’s health and increased falling probability.
CONSUMER ACCEPTANCE AND ECONOMIC VALUE OF Cratoxylum formosum ESSENTIAL OIL Muhamad Yusup Hidayat; Ridwan Fauzi; Grace Serepina Saragih; Alfonsus H. Harianja
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.61-74

Abstract

Cratoxylum formosum (Jack) Benth. & Hook.f. ex Dyer is one of the plant species that have the potential to be developed into an antibacterial and antioxidant essential oil product. This study was conducted to determine the value of organoleptic tests and the consumers' willingness to pay (WTP) for the three variants of Cratoxylum formosum essential oil products. For the parameters of colour, hedonic test values and score tests showed good results; panellists did not mind the pure and mixed Cratoxylum formosum essential oil colours. However, for fragrance parameters, the hedonic test showed a dislike score. Most panellists disliked the strong "scent of leaves" of pure C. formosum oil. The score test showed satisfactory values, the panellists accept the fragrance of Cratoxylum formosum essential oil, but it is necessary to add a more preferred scent mixture to reduce the strong original fragrance of the oil. The cost of production of Cratoxylum essential oil is Rp.7,259.23 (USD 0.48)/mL or Rp.72,592.30 (USD 4.84) for every 10 mL. Based on the cost of production, the appropriate selling value for every 10 mL of Cratoxylum essential oil is a minimum of USD 4.84.
SURVIVAL AMIDST COVID-19 PANDEMIC: CONTRIBUTIONS OF THE FOREST TO THE LIVES OF THE FILIPINOS John Louie M Bona; Kim Vincent M Timbal; Jaypee D Bangate; Michelle A Resueño; Ericson Esquibel Coracero; RB Juarez Gallego
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.105-112

Abstract

COVID 19 has brought significant damage to the lives of the people due to extremely long lockdowns and unemployment. Thus, leaving no choice to the residents and forcing them to rely on what is available in the environment. This study was conducted to assess the contribution of the forests to the lives of the locals in Aurora through a survey on 161 respondents. Data were analyzed through descriptive statistics including frequency, mean, rank, and percentage. Results showed that 100% of the respondents depend on the forests for their food which includes fruits and vegetables in the wild and on their farms located in and along the forest. Meanwhile, 116 individuals (72%) obtained livelihood from the forest in times of the pandemic in the form of labor, farming, selling of forest goods, charcoal making, and furniture making. Generally, the individual income obtained from forest ranged from Php500.00 (8.85 USD)to Php25,000.00 (442.65 USD) and an overall mean individual monthly income of Php4,084.19 (72.32 USD).  Each type of livelihood activity provided a mean monthly income ranging from Php 4350 (USD 77.02) to Php 9021 (159.73 USD) per person. However, the respondents faced challenges such as loss of products due to theft, the limited number of consumers, and struggles concerning the health of the workers especially the elders, disabled, and other high-risk individuals to COVID-19. The government must consider providing needs (financial, technical, knowledge) to the locals in obtaining products and services from the forest for sustainable utilization of the resources. This research dictate the importance of forest as a source of life to the people. Thus, the result of this study may be used as a baseline for the government in crafting policies to help ensure sustainability of the forest and the lives of the society.
ANATOMICAL INVESTIGATION OF FIVE GENERA THE LEAST-KNOWN TIMBER OF APOCYNACEAE AND THEIR POTENTIAL UTILIZATION Sari Delviana Marbun; Vidya Fatimah Astutiputri; Ratih Damayanti; Hadisunarso Hadisunarso; Deazy Rachmi Trisatya; Djarwanto Djarwanto; Listya Mustika Dewi; RGH Rahmanto; Dyah Ayu Agustiningrum; Rohmah Pari; Imran Arra’d Sofianto; Yunita Lisnawati; Titi Kalima; Sona Suhartana; Setiowati Setiowati; Krisdianto Krisdianto; Marfuah Wardhani; Agus Ismanto; Yuniawati Yuniawati; Agung Wahyu Nugroho; Sri Utami; Wahyu Dwianto; Widya Fatriasari; Adik Bahanawan; Danang Sudarwoko Adi; Sarah Augustina; Hengki Siahaan
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.75-90

Abstract

Doubtlessly, wood identification is critically important for a number of sectors, including government organizations, the wooden-based industry, museums, law enforcement, and scientists working in botany, ecology, forestry, and wood technology. Unfortunately, most wood species listed as “the least-known species” lack essential knowledge or their anatomical features and basic properties to promote their usage. This research aimed to investigate the anatomical characteristics and fiber quality of the least-known timber species of Apocynaceae family, which are authentic wood collection from Xylarium Bogoriense, namely, Ervatamia sphaerocarpa, E. aurantiaca, Kopsia flavida, Lepiniopsis ternatensis, Plumeria acuminata, P. rubra, and Voacanga foetida. Wood samples have indistinct growth ring boundaries, diffuse-porous vessels in diagonal and/or radial pattern, vessels in radial multiples of 4 or more cells, simple perforation plate, alternate intervessel pits; distinct borders of vessel-ray pits, similar with those of intervessel pits in size and shape throughout the ray cell, and septate fibers with simple pits to minutely bordered pits which are common in radial and tangential walls. Based on the fiber length and the derived values of fiber dimension, some species are classified into Quality Class II and III, and the rest of them are classified into Quality Class II or III for pulp and paper manufacturing. Based on general characteristics, commonly Apocynaceae can be used as handicrafts raw material. Based on the fiber quality, some species which are classified into Quality Class II, are predicted to have potential as pulp and paper material with medium quality.
EFFECTS OF TEMPERATURE VARIATIONS AND PRE-SOWING TREATMENTS ON THE GERMINATION OF Milicia excelsa: A CASE STUDY OF SEEDS COLLECTED FROM BENCHI-MAJI ZONE, SOUTH-WESTERN ETHIOPIA Mohammed Adefa Seid; Yigardu Mulatu Mengesha
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.21-28

Abstract

Seeds always exhibit some degree of dormancy, resulting in a delay and irregularity of germination, and the seeds of Milicia excelsa often have seed germination difficulty. The main objective of this study was to demonstrate the seed germination variations of M. excelsa at room temperature (20-25°C) and incubator (25.6o C). In this study, 400 seeds of M. excelsa were tested using three pre-sowing treatments and control. Each treatment was defined as four replications in which 25 seeds per replication were initially sown in a 90 mm diameter petri dish with disc paper in a completely randomized design. The result showed that the mean germination percentage of the control treatment scored about 23.8%, followed by seeded rubbed by hand with a score of 15%. It is observed that room temperature has a significant effect (29%) on the germination of the control treatment compared to the incubator (18.7%) at p=0.05. However, no significant mean germination difference is observed between the effects of room temperature and the incubator in the remaining pre-sowing treatments: Washed with tap water (T1), 2) Washed and soaked in hot water for 15 minutes (T2) and 3) rubbing by hand (T3). However, it can be inferred that room temperature is an ideal temperature that meets plants' physiological seed germination requirement. To understand the importance of temperature and light on the germination of angiosperm, further experiments involving variable ranges of temperature and light intensity can be conducted.
ANALYSIS OF EXTERNAL FACTORS ON RURAL ECOTOURISM ENTREPRENEURSHIP (CASE STUDY IN BOGOR REGENCY OF WEST JAVA) Indra Setiawan Purba; Ricky Avenzora; Eva Anggraini; Dudung Darusman
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.91-104

Abstract

The entrepreneurship aspect will determine the success of rural ecotourism development. Rural ecotourism products and services should be attractive and carefully set and packed by entrepreneurs, to attract tourists. This paper studies the external factors that may affect entrepreneurial capacity in rural ecotourism. Research was conducted in four tourist villages in Bogor Regency, namely Ciasihan, Sirnajaya, Watesjaya, and Pabuaran. The 442 respondents were divided into two groups, namely the entrepreneurial group (240 respondents) and the non-entrepreneurial group (202 respondents). Closed-ended questionnaire in “one score one indicator scoring” system pattern was provided to the respondents. Data were analysed in a quantitative descriptive manner based on the average value of each indicator. Analysis of causality between variables was conducted using logistic regression analysis. The results show that external factors that significantly affect rural ecotourism entrepreneurship are dominated by social aspects (seven factors) and some aspects of the entrepreneurship ecosystem, namely 1) market, 2) finance, and 3) business culture. The highest odds ratio is in the social interaction variable, 5.459, while the lowest is in the group solidarity variable, which is 0.323. With the odds ratio of social interaction of 5.459, it can be interpreted that if social interaction in the tourist village increases, it will tend to cause success in entrepreneurship 5.459 times higher than in the absence of social interaction. By utilising raw materials derived from natural resources, the ecotourism business will encourage business actors to be more concerned with preserving resources and forests and the environment. Therefore, entrepreneurship in the field of rural ecotourism must be optimally supported by all stakeholders involved.
FORMULATING STRATEGIES BASED ON LOCAL COMMUNITY’S PERCEPTIONS FOR CAVE AND BAT ECOTOURISM DEVELOPMENT: A CASE STUDY OF TOGENRA CAVE IN BARRU, SOUTH SULAWESI Risma Illa Maulany; Ahmad Syarif Ansharullah; Andi Siady Hamzah; Nasri Nasri
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.29-45

Abstract

Togenra cave in Madello Village, Barru Regency (South Sulawesi) is located in the Tonasa Karst Formation, known as one of the largest formations in Asia and is also popular for its unique features and functions. Currently, the local government has not yet established a regulation on the management of the cave, and locals are free to access the cave for calcium and guano mining which can threaten the ecosystem of the cave. Therefore, it is necessary to develop non-consumptive use of the cave, through ecotourism that can provide long-term benefits to the local communities. This study aimed to 1) examine the community’s perceptions toward the cave, bats and conservation; 2) formulate strategies by assessing the potency of the cave and bat species as an ecotourism spot based on the local’s perceptions; and 3) provide recommendations for the local government in supporting both ecotourism and conservation in the area. The study was conducted from August 2020 to February 2021. A set of questionnaires were to 31 respondents living within a radius of 1 km from Togenra cave. Formulation of strategies were done by using combined analyses of Strength, Weakness, Opportunity, Threats (SWOT) and  Analysis of Hierarchy Process (AHP). Our analyses indicate a growth strategy trend (Quadrant I). Several strategies drawn emphasize on improving local’s knowledge and perceptions, active involvement of locals, establishment of local management initiatives and regulations, capacity enhancement, and implementation of a stakeholders’ forum. These findings can become a baseline in planning and developing both bat-cave tourism as well as conservation efforts in the area
POLARIZATION OF LOCAL COMMUNITY PERCEPTION ON SOCIOCULTURAL DYNAMICS IN ECOTOURISM DEVELOPMENT OF BOPUNJUR, WEST JAVA Gatot Widodo; Ricky Avenzora; Elly Malihah; Tutut Sunarminto
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.113-134

Abstract

In addition to providing multiplier economic benefits, the tourism sector also has the potential to cause some latent and massive negative social impacts. For this reason, it is important to map out the orientation of the local community. This study analyzes the polarization of the local community's perceptions of sociocultural dynamics in the ecotourism development area. The local community that became the focus of the research consisted of five groups of respondents: traditional leaders, religious leaders, educational leaders, community leaders, and tourism actors. This research was conducted in the Bopunjur Ecotourism Area, Bogor Regency, West Java, precisely in seven ecotourism destinations, namely Ciawi, Caringin, Cibogo, Cipayung, Megamendung, Cisarua, and Tugu. This study used mixed methods, qualitative and quantitative approach. Data collection on social and cultural dynamics was done by distributing questionnaires to the respondents. The research instrument was a questionnaire designed closed-ended with guidance on one score-one indicator scoring system. The results showed that positive social situations, namely conducive situations, associations, cooperative situations, and productive collaborations were still more dominant than negative social situations: war, conflict, and dissociation. The polarization of the local community on sociocultural dynamics has a positive direction with a polarization scale that is aligned with each other so that there is an excellent opportunity to build productive collaboration among stakeholders in this area
PHYTOCHEMICAL AND ORGANOLEPTIC CHARACTERISTIC OF Sterculia quadrifida R.Br. TREE BARK HERBAL TEA Siswadi Siswadi; Heny Rianawati; Grace Serepina Saragih; Retno Setyowati
Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2023.10.1.47-60

Abstract

Sterculia quadrifida R.Br. Bark decoction is used to treat hepatitis and consumed as a tonic by Timorese in the East Nusa Tenggara Province, Indonesia. Raw herbal materials are susceptible to fungi contamination, have limitations in transportation, and have low economic value. Processing the bark into powder packed in tea bags is expected to overcome these obstacles. Stevia, ginger, and mint leaves are herbs often added to herbal drink formulas. This study aimed to evaluate the antioxidant capacity, total flavonoid content (TFC), total phenol content (TPC), physicochemical properties, and sensory properties of six formulas, namely: (F1) pure S. quadrifida bark; (F2) bark of S. quadrifida and leaves of stevia; (F3) stem bark of S. quadrifida and ginger; (F4) bark of S. quadrifida, stevia, and ginger; (F5) bark of S. quadrifida and mint leaves; (F6) bark of S. quadrifida, stevia, and mint. Total phenolic content was measured using the Folin-Ciocalteu method, and total flavonoids were determined using the AICI3 method. Antioxidant activity was measured using the 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) method. The TPC of S. quadrifida tea ranged from 14.09±0.7 to 68.20±0.95% Gallic Acid Equivalent (GAE), and the TFC ranged from 0.03±0.005 to 0.09±0.004% QE. The Ascorbic acid Equivalent Antioxidant Capacity (AEAC) of F1, F2, F5, and F6 were insignificantly different. The pure S. quadrifida bark formula (F1) contained the highest levels of antioxidants (1,044.3±28.48 ppm Ascorbic Acid Equivalent (AAE)). Formulas with the addition of stevia, mint, and ginger showed weaker antioxidant activity than pure S. quadrifida. The formula of pure S. quadrifida bark (F1) and S. quadrifida with the addition of stevia (F2) have the potential to be developed as commercial herbal teas

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