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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 498 Documents
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MALAPARI (Pongamia Pinnata (L.) Piere) GROWTH ON THREE PLANTING PATTERNS WITH TRICHODERMA AND MYCORRHIZAE SP APPLICATION Aditya Hani
Indonesian Journal of Forestry Research Vol 8, No 2 (2021): 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: 10.20886/ijfr.2021.8.2.229-239

Abstract

Malapari (Pongamia pinnata) is a potential plant for biodiesel and has the ability to grow on marginal land. Malapari cultivation has not yet been carried out due to low economic value. Agroforestry crop patterns are expected to provide intermediate results so that people would be interested in planting malapari. Planting on coastal land requires the right technology to produce optimal growth. This study aims to determine the effect of malapari cropping patterns and evaluate biological fertilizer application in the seedling phase after planting in the field. The research uses a split plot design (Split Plot Design) with the main factors that are the pattern of malapari planting and sub-plots that are the type of application of biofertilizer. The results obtained from the study showed that the interaction of cropping pattern treatment and biofertilizer application did not give significant growth to malapari; the combination of the application of organic manure, Trichoderma spp and mycorrhiza bio-fertilizers in the nursery yielded the largest malapari diameter growth after planting in the field at the age of 3 years.
FIXATION PROCESS OF LAMINATED BAMBOO COMPRESSION FROM CURVED CROSS-SECTION SLATS Teguh Darmawan; Adik Bahanawan; Danang S. Adi; Wahyu Dwianto; Naresworo Nugroho
Indonesian Journal of Forestry Research Vol 8, No 2 (2021): 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: 10.20886/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 0.40–0.56 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 0.70–0.83 g/cm3 to 1.02–1.18 g/cm3 with the compression level of 32.92–41.50%. 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. However, further research should be conducted to know the delamination and shear strength of the bamboo lamination.
ORTHOPTERAN DIVERSITY IN TROPICAL ECOSYSTEMS OF CENTRAL KERALA, INDIA Leema Rose Mathew; Gigi K Joseph; Aleena Elizabeth Cyril
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.121-133

Abstract

Orthoptera is a diverse arthropod taxon that includes locusts, grouse locusts, short-horned grasshoppers, long-horned grasshoppers, katydids, crickets and mole crickets. They play crucial roles in food chains, nutrient cycling and pollination. The diversity of orthopterans in agroecosystems and grasslands located in the highlands and lowlands of Central Kerala were studied from December 2019 toMarch 2020. The study was conducted in Avoly of Ernakulam District and Venmony of Idukki District in Kerala by employing random sampling in 10 x10 m quadrats. A total of 35 species of orthopterans, belonging to two suborders, 10 families, 20 subfamilies, and 33 genera were recorded. Family Acrididae with fourteen species was the most dominant family followed by Tettigoniidae. Two species namely, Chitaura indica and Burrinia burri are endemic to the state of Kerala. It was found that the ranges of most of the orthopteran genera reported in our study extend all over the South East Asian countries. The highest number of Orthoptera was reported in December in both locations and it decreased towards March. Simpson’s diversity index value shows that both regions harbour a highly diverse orthopteran community. The diversity index value of Venmony is comparatively higher which might be due to the proximity of the study site to the natural forest ecosystem and fewer disturbances. More studies on the orthopteran fauna of Kerala are recommended which would help control their pest status and exploit their economic potential as food in animal husbandry
GENETIC RELATIONSHIP OF SEVERAL MORPHOLOGICAL AND MOLECULAR CHARACTERISTICS OF Phalaenopsis amabilis (L.) Blume ORCHIDS FROM THE MERATUS MOUNTAINS OF SOUTH KALIMANTAN, INDONESIA Dindin Hidayatul Mursyidin; Muhammad Rubiansyah; Badruzsaufari Badruzsaufari
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.63-72

Abstract

Phalaenopsis amabilis (L.) Blume orchid is one of the most popular orchid species in the world. However, this ornamental plant is threatened in its natural habitat, the Meratus Mountains of South Kalimantan, Indonesia. This study determines and analyzes the genetic relationship among several morphological characteristics of P. amabilis from this region combined with molecular (RAPD) markers. A total of ten orchid samples comprised of nine moth orchids (P. amabilis) and one species (P. cornu-cervi) as an outgroup, as well as ten RAPD primers were used in this study. Based on the morphological markers, the moth orchids have a moderate level of genetic diversity, indicated by Shannon's index value of 0.5. In contrast to molecular markers, this germplasm shows high genetic polymorphism, shown by the polymorphism degree of 100% for all primers used. The cluster analysis shows that this germplasm can be divided into two clusters for morphological and five for molecular markers. Following these markers, the grouping of moth orchids was nearly corresponding to their origin. Thus, this information could be useful as a reference for orchid conservation and breeding programs in the future.
KANCILAN FLORES (Pachycephala nudigula nudigula): THE ICONIC BIRD OF KELIMUTU NATIONAL PARK, INDONESIA Ridwan Fauzi; Aditya Kuspriyangga; Fendra Suarmadi; Teguh Heri Setianto; Grace Serepina Saragih
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.49-62

Abstract

Kancilan Flores (Pachycephala nudigula nudigula) is an iconic bird of Kelimutu National Park. The bird has a unique characteristic with the ability to make a wide variety of song. The local people call this bird 'Garugiwa' and also 'burung arwah' or 'spirit bird' because it is small and hard to spot but has a loud chirp. Some literature mentions this bird with different scientific names. This study aimed to identify this bird to rectify this misnaming scientifically and to observes Kancilan Flores behavior, habitat, and population. Kancilan Flores is an attractive fauna for tourists. Therefore, this study also recommended potential birdwatching locations for Kancilan Flores. This study used a transect line and direct observation methods. The results showed that the estimated population size of Kancilan Flores in the Kelimutu National Park was 1,667 individuals with a population size range of 1,245–2,089 individuals. The population density of Kancilan Flores was estimated at 0.53 individuals per hectare. The Kancilan Flores is most commonly found at an altitude of 1,500–1,600 m a.s.l. Recommended areas as bird watching locations for Kancilan Flores, namely the Edelweiss Garden, Perekonde, the lower Arboretum, and the Kancilan Flores middle Arboretum. Therefore, it is necessary to protect the population of Kancilan Flores by strictly prohibiting hunting and destruction of their habitat.
MINING FIRE HOTSPOTS OVER NUSA TENGGARA AND BALI ISLANDS Arie Vatresia; Rendra Regen; Ferzha Putra Utama; Widhia Oktariani
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.73-85

Abstract

Forest fires are still one of the most common problems in Indonesia. In fact, many of these forest fires origin from human activities, namely fires that are intentionally raised for a purpose such as widening the land to prepare for the planting season in the Nusa Tenggara Island. Forest fire events can be identified by observing hotspot data which are monitored through remote sensing satellites. Hotspot is an area that has a relatively higher surface temperature than the surrounding area based on certain temperature thresholds monitored by remote sensing satellites. The area is represented as a point that has certain coordinates. The actual fires can be monitored by observing the hotspot attribute, namely Confidence, Brightness Temperature and FRP (Fire Radiate Power). To find the similarities of the three mentioned attributes, the clustering process is carried out to make monitoring easier. The objective of this research is to cluster hotspots in the Nusa Tenggara and Bali Islands from year 2013 to 2018 using the K-Means Clustering Method with 28,519 hot spot data. This could be a benefit for the Ministry of Environment and Forestry in Indonesia to identify the priority level of the area to be monitored. By knowing  this result, the ministry can use this data for patrol priority management. This research successfully clustered three types of hotspot classes based on the risk of fire with details as follow; High Risk Class contains 12,212 data with ranges of mean values of confidence in the range of 49.3–100%, brightness in the range of 305.1–421.3o K and FRP in the range of 2.5–714.3; Medium Risk contains 12,250 data mean values of confidence  with a range of 20.3–74.3%, brightness in the range of 301.06–341.86o K and FRP in the range of 3.6–141.4; and Low Risk contains 4,057 data with a range of mean values of confidence in the range of 0–39.8%, brightness in the range of 300–365.86oK and FRP in the range of 3.5–275.6. All of the clusters were obtained by the implementation of K-Means clustering over the hotspot data and its parameter as mentioned, respectively. The cluster performance showed the confidential value of 88.45% accuracy using 100 hotspot data from 2019
LEAF TRAITS OF THE INVASIVE SPECIES Bartlettina sordida (Less.) R.M. King NATURALIZED IN CIBODAS HIKING TRAIL, MT. GEDE PANGRANGO NATIONAL PARK, WEST JAVA, INDONESIA Dwinda Mariska Putri; Decky Indrawan Junaedi; Vandra Kurniawan; Muhammad Efendi
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.1-8

Abstract

Cibodas Botanical Garden (CBG) maintains not only native plant species but also introduced plant species. Some of these have been naturalized from CBG to the adjacent Mt. Gede-Pangrango National Park (GPNP). One of the reported naturalized species is Bartlettina sordida. Understanding species traits will give information for the future management of B. sordida. This research investigates the distribution of B. sordida in the Cibodas hiking trail and studies leaf traits variation of this species along with an altitudinal change in the Cibodas hiking trail. Samples were collected along the Cibodas hiking trail from the entrance gate to the Cibeureum waterfall. At every survey location, we recorded B. sordida occurrences. In the sample plots we also collected leaf samples from detected B. sordida. The leaves were then fixated using the hands-free method to observed stomatal type, density, and size. The leaves were also treated for specific leaf area (SLA) measurements. Stomata size is significantly correlated along the altitudinal gradient. Stomata density is negatively correlated but not significant along the altitudinal gradient. Stomata size is positively correlated with SLA. These traits are related to water-efficient adapting to GPNP climate, which is very different from its natural habitat. The ability to adapt to altitudinal gradient helps B. sordida to dominate the Cibodas hiking trail.
MANAGEMENT STRATEGY OF ELEPHANT RIDING AT THE ZOO Sata Yoshida Srie Rahayu; Dolly Priatna; Rosadi Rosadi; Suryanto Suryanto
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.29-47

Abstract

Elephant Riding (ER) in zoos has become a matter of public interest, raising debates among experts regarding animal ethics, elephants’ welfare, and human safety. Through the submission of the Middle Hypothesis that ER tends to enhance human knowledge about conservation, this study’s aim is to provide strategies to help zoo managements in their works  based on the basic principles of wildlife conservation and protection, especially Sumatran elephants. The participants’ knowledge was measured using questionnaires distributed to two groups of respondents: people who have and people who have not utilized ER services. Meanwhile, the strategy was recommended through the Analytical Hierarchy Process of 17 expert respondents. According to the independent sample t-test performed with  95% confidence level, human knowledge of elephant conservation increased significantly through ER. Furthermore, experts with consistency ratios (CR) ≤ 0.1 selected a strategy where environmental quality was prioritized as a recommended strategy in ER management. This strategy is to put forward the principles guaranteeing the elephants’ welfare, which has a criterion weight of 0.40717. The other recommended strategies include conducting conservation education (0.23973), ensuring the safety of visitors (0.22972), and improving the welfare of the community around zoo (0.12338).
EFFECTS OF GERMINATION ECOLOGY ON IN VITRO GERMINATION PERFORMANCE OF HIGHLAND BAMBOO (Yushania alpina) SEED COLLECTED FROM KEFA, SOUTH WEST ETHIOPIA Belete Getnet Tesfaye; Yigardu Mulatu Mengesha; Smegnew Melese Birlie; Marshet Nigatu Gebeyehu
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.87-97

Abstract

Yushania alpina is an African endemic bamboo species, and it is a valuable resource in ecological and socioeconomically value in Ethiopia. However, low germination is a challenge for seedlings production besides its seed availability is scarce. To improve the seed germination capacity, using different germination ecology treatments are needed. Hence, this study was initiated to investigate the effects of different germination ecology, and to determine the qualities, size, and yield of Y. alpina seed. The collected matured fruits were processed, and then the cleaned (pure) and not cleaned (impure) seed were used for this study. This study had two phases; the first was to measure the purity, moisture content, seed character, seed yield; and the second was to investigate the effects of different germination ecology for in vitro seed germination of Y. alpina using pure and impure seeds. In this result, the purity, moisture content, seed size, seed weight, and grain yield were determined for cleaned Y. alpina seed. The interaction effects of seed type and germination ecology were highly significant on all germination parameters. The highest germination capacity (55%) of pure seed was recorded on T2 (paper + ambient temperature), followed by 38% on T1 (sand +ambient temperature), and 31% on T3 (paper + incubator (25°C)); however, these treatments produced lower results in the impure seed. In addition, the highest (23.5 days) mean germination time was recorded on T3, followed by 13.06 on T2 using impure seed, but the lowest (2.5 and 2.01) value was recorded on T1 and T2 of pure seeds. Hence, this result concluded that using sand media at ambient temperature as germination ecology is preferred to enhance the germination capacity of Y. alpina seed. Also, seed surface disinfection using antifungals is recommended to reduce seed contamination
UTILIZATION OF CITRIC ACID AS BONDING AGENT IN SEMBILANG BAMBOO (Dendrocalamus giganteus Munro) PARTICLEBOARD PRODUCTION Firda A. Syamani; Agus Z. Arifqi; Sasa S. Munawar; Sudarmanto Sudarmanto; Lilik Astari; Kurnia W. Prasetiyo; Mohamad Gopar; Ismadi Ismadi; Sukma S. Kusumah; Mohd. H. Hussin; Subyakto Subyakto; Yusuf S. Hadi; Kenji Umemura
Indonesian Journal of Forestry Research Vol 9, No 1 (2022): 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: 10.20886/ijfr.2022.9.1.99-120

Abstract

Citric acid was utilized as a bonding agent in the production of Sembilang bamboo particleboard. The limitation in using bamboo for particleboard production is that the silica content in bamboo skin can accelerate particleboard processing machines' bluntness and reduce particle adherence in particleboard manufacturing. This research aimed to investigate the influence of bamboo skin and citric acid content on the characteristics of Sembilang bamboo particleboard. Particleboards were prepared using bamboo particles (type A) and unskinned bamboo particles (type B). The citric acid solution (59%) was sprayed over the surface of bamboo particles to obtain three different levels of citric acid, i.e., 15, 20, and 25 % (based on bamboo particles’ dry weight). The Sembilang bamboo particleboards were manufactured using a hot-pressing machine at 200°C, 5 MPa for 10 min. The particleboard targeted density was 0.8 g/cm3. The type B particleboards’ internal bond (IB), modulus of rupture (MOR), water absorption (WA), and thickness swelling (TS) were superior compared to the type A particleboards. This was influenced by the lower concentration of silica in type B particleboards, which tend to allow an intimate contact area among particles and citric acid then produced better quality particleboards compared to type A particleboards. The type B particleboards met the obligation of JIS A 5908 for type 18 particleboard in terms of modulus of rupture, modulus of elasticity, and internal bond, however, only fulfilled the type 8 particleboard in terms of screw holding power. The physical properties of Sembilang bamboo particleboard were also improved when using type B bamboo particles and adhered with citric acid at a level of 25%.

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