Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Indonesian Journal of Forestry Research

IJFR
Website

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.

Arjuna Subject : -

Articles 498 Documents

28 29 30 31 32

NON-TIMBER FOREST PRODUCT (NTFP) COMMODITIES HARVESTED AND MARKETED BY LOCAL PEOPLE AT THE LOCAL MARKETS IN MANOKWARI – WEST PAPUA Wahyudi Wahyudi
Indonesian Journal of Forestry Research Vol 4, No 1 (2017): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

The biodiversity richness of tropical forests in Papua provides substantial livelihood necessities for most forest people. This includes Non-Timber Forest Products (NTFPs), under-valued, neglected, or minor forest commodities that play a key role for the entire livelihood of the forest people. This paper highlights the diversity of NTFP marketed by the local people of Papua at traditional markets in Manokwari, West Papua. Data were collected from twenty respondents selected randomly from two local markets at Manokwari and field visits to surrounding (primary or secondary) forests, and analyzed using simple statistical analysis. The result indicates that 29 NTFPs commodities were on the market, and grouped into vegetables (9), food (4), fruit (7), medicinal herbs (4), tools (3) and addictive material (2). These commodities give alternative incomes, create unskilled jobs to the female-forest dwellers at Manokwari, and provide daily fresh vegetables and nutritious products for local customers. The marketed NTFPs are harvested from surrounding primary or secondary forest areas of Manokwari. Banana is the most favorable commodity in high demand either serving as food or fruit. Sago (Metroxylon spp.) is the only commodity supplied from other areas out of Manokwari, mainly from Wondama, Biak, Jayapura, and Serui. Annual events of Christmas and New Year create the highest demand for sago processed to papeda, that represent cultural or heritage food for most of the Papuanese family gatherings. Cultivation of these NTFPs has to be seriously considered for sustainable harvest due to the current extensive harvesting from the nature which will deplete the resources if no intensive cultivation carried out. To sustain availability of fresh daily needs, and provide alternative income to local people, local government, forest institutions, universities, non government organizations, and motivators need to work together to gain added value and secure sustainable supply of those NTFPs.

VARIATION IN WOOD PHYSICAL PROPERTIES OF EUCALYPTUS GROWING IN SEEDLING SEED ORCHARD IN PLEIHARI, SOUTH KALIMANTAN Siti Susilawati; Sri Noegroho Marsoem
Indonesian Journal of Forestry Research Vol 3, No 2 (2006): 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.2006.3.2.123-138

This study shows an effort to obtain the best performance of Eucalyptus pellita trees, which was conducted by examining the physical properties of wood of 116 months age Eucalyptus pellita trees. The trees of various families used in this study were all grown in Seedling Seed Orchard (SSO), Pleihari. A total of 10 families with 3 individual trees for each family as replication were randomly selected for the whole SSO. Selected sample trees were felled, cut and divided into three different parts (bottom, middle and top) of the stem. Each stem part was then cut into wood samples running from pith to bark portion for the examination of its physical properties according to British Standard BS 373-1957. The collected data on those properties were analyzed by using a completely randomized design (CRD). The results showed that there were significant differences in wood density and fiber length among different height, and among wood sections from pith to bark in individual trees as well as among families. Wood density showed high family heritability (0.708) and genetic correlation between wood density and fiber length were significantly different (r = 0.543).

POTENCY OF BIOCONTROL AGENTS ISOLATED FROM COMPOST AND PEAT SOIL OF TROPICAL PEAT SWAMP FOREST IN KALAMPANGAN ZONE, CENTRAL KALIMANTAN Yuliar Yuliar; Zaenal Abidin; Wibowo Mangunwardoyo
Indonesian Journal of Forestry Research Vol 8, No 2 (2011): 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.2011.8.2.144-157

Rhizoctonia solani is a soil pathogen that causes diseases in wide range of hosts of agricultural, horticultural and flower crops. Biological control is the most promising way for the diseases management and it is environment friendly too. The objective of this study was to isolate and screen the potency of soil bacteria as biological control from various local compost and peat soil of tropical peat swamp forest in Kalampangan Zone, Central Kalimantan. Forty seven isolates from peat soil and compost were screened for biocontrol agent of Rhizoctonia solani . R. Solani Seven out of thirteen peat soil isolates, and six out of thirty three compost isolates showed antagonistic activity against in Potato Dextrose Agar. The cultivation of the antagonistic isolates in Trypticase Soy Broth (TSB) was extracted and analysed by high performance liquid chromatography (HPLC) column. The HPLC analyzes indicated that the antagonistic isolates produce an antifungal iturin A. Macroscopic observation of isolates colonies showed that form of their colonies were amuboid, myceloid, curled, circular, rhizoid, irregular and filamentous. These achievement indicate peat swamp forest not only offer a potential biocontrol agents of damping off but also provide a new source for production of antibiotics.

CORRELATION ANALYSIS BETWEEN SEAWATER INTRUSION AND MANGROVE GREENBELT Endang Hilmi; Cecep Kusmana; Endang Suhendang; Iskandar Iskandar
Indonesian Journal of Forestry Research Vol 4, No 2 (2017): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Seawater intrusion is an entry process of seawater to land. Many factors have caused seawater intrusion from freshwater exploitation until mangrove degradation. Mangrove ecosystem is a type of forest ecosystem which has an ability to reduce seawater intrusion. This paper analyzes the estimation and prediction of seawater intrusion and correlation between widths of mangrove with seawater intrusion. The relation analysis between the width of mangrove greenbelt with seawater intrusion used an equation model to predict seawater intrusion. The research method used sampling technique, system analysis with powersim software, correlation analysis and mathematical method with trend line analysis. Results show that (1) the mangrove density in the coastal area is approximately 50 – 109 trees/ha. (2) Simulation results showed seawater intrusion rate was about 0.20 km year (with mangrove as a component system), but reached 0.3 – 0.4 km/year (without mangrove as a component system). (3) The simulation result also showed that freshwater salinity was estimated to increase from 1.92 ppt to 4.86 ppt. (4) The relation model between seawater intrusion and mangrove greenbelt showed that correlation coefficient was 0.97 with the equation seawater intrusion (m) = 2264.9 * exp (-0.009 * the width of mangrove greenbelt (m)), the correlation of mangrove width with seawater intrusion was 0.97. (5) Avicennia marina, Avicennia alba, Rhizophora styllosa, Sonneratia alba and Sonneratia caseolaris were the mangrove species that had the best ability to reduce seawater intrusion.

TWO FELLING TECHNIQUES AND FELLER POSTURES FOR INCREASING THE UTILIZATION OF GMELINA WOOD (A case study at two timber estates in East Kalimantan) Sona Suhartana; Yuniawati Yuniawati
Indonesian Journal of Forestry Research Vol 3, No 1 (2006): 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.2006.3.1.31-40

Fellingis an early step in timber utilization process. Efficiencyand effectivity of felling technique, tool type and feller posture will affect the whole timber utilization efficiency. This study was carried out at two timber estates in East Kalimantan and intended to see the effect of two felling techniques and feller postures on felling productivity, fellingcost, as well as timber utilization efficiency.Primary data collected in this research included : felling time, volume of felled timber, productivity, felling efficiency, stump height and felling cost. The data was analyzed using split-plot design with factorial pattern.The result showed that the implementation of lowest possible felling technique (LPFI) increased log production from 14.4 to 17.7%. The lowest stump height left was of the one using LPFf with particular bowed posture in PT. Sumalindo Lestari Jaya I (SLJ I) (4.82 cm).

ECOLOGICAL CONDITIONS AND DISTRIBUTION OF GEMOR TREE SPECIES IN CENTRAL AND EAST KALIMANTAN Wahyu C. Adinugroho; Kade Sidiyasa; Tati Rostiwati; Dida Syamsuwida
Indonesian Journal of Forestry Research Vol 8, No 1 (2011): 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.2011.8.1.50-64

The aim of this study was to determine the ecological conditions and distribution of gemor bark producing tree species at Tuanan village in Kapuas District, Central Kalimantan Province and Long Daliq village in Kutai Barat, East Kalimantan Province. In order to collect adequate vegetation data, several obser vation plots were laid out by using purposive sampling. Primary and secondary data were collected from the plot areas by obser ving directly the habitat and its ecological condition of vegetation. It was revealed that the gemor tree species tended to grow well on the habitats which have a thin layer of peat (< 2 m), pH 3 – 4 and in a humid climatic condition. Two gemor bark producing tree species were identidfied in the study areas, namely Nothaphoebe coriacea (Kosterm.) Kosterm. and N. umbelliflora Blume. The similarity level of vegetation composition at both sites (Kapuas and Kutai Barat Districts) was low. The tree species richness in the plot areas of Tuanan in Kapuas District, Central Kalimantan (82 species, 57 genera and 28 families) was higher than that found in Long Daliq, Kutai Barat District, East Kalimantan (38 species, 26 genera and 19 families).

THE PHYSIOLOGICAL AND NUTRITIONAL CONTENT CHANGES OF JELUTUNG (Dyera polyphylla (Miq.) Steenis) SEED THROUGH DRYING AND STORAGE Naning Yuniarti; Nurhasybi Nurhasybi
Indonesian Journal of Forestry Research Vol 5, No 1 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Agency for Standardization of Environment and Forestry Instruments

Seed deterioration is the process of deteriorated seed in view of viability that has changed its physiological and nutritional content. This paper studies the effect of seed drying and seed storage to the viability and biochemical content of jelutung (Dyera polyphylla (Miq.) Steenis) seeds. Completely Randomized Design was used for different level of seed drying time, i.e. 0, 24, 48, 72, 96 and 120 hours, and Completely Randomized Factorial Design was used for the combination of seed drying treatments of 0, 24, 48, 72, 96 and 120 hours in different rooms for seed storage (ambient room, air conditioned room, refrigerator) with variables of moisture content, germination percentage and nutritional content. Result shows that seed drying and seed storage treatments pursue the change of seed viability and nutritional content of jelutung seed. The period of time in seed drying and seed storage siginificantly influence the moisture content, germination percentage and nutritional composition (lipid, carbohydrate, protein). The longer time of seed drying will effect significantly to the moisture content and germination percentage, increasing the lipid and protein and decreasing carbohydrate. Jelutung seed that was stored in air conditioned room had better viability compared to ambient room and refrigerator.

PRODUCTION OF MANGIUM (Acacia mangium) WOOD VINEGAR AND ITS UTILIZATION Tjutju Nurhayati; Han Roliadi; Nurliani Bermawie
Indonesian Journal of Forestry Research Vol 2, No 1 (2005): 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.2005.2.1.13-25

Production of wood vinegar from mangium (Acacia mangium) wood bolts/pieces with their diameter of 3 17 cm, length of 30 67 cm, moisture content of 84.4%, and specific gravity of 0.52 conducted in a dome-shaped kiln with 1.2 m'-capacity afforded a yield of 40.3%. The mangium wood vinegar was produced through condensation (cooling) of smoke/gas fractions released during the charcoaling (carbonization) process of mangium wood. The process could be regarded as an integrated production of wood vinegar and charcoal. The yield of wood vinegar combined with the resulting charcoal was 73.9% based on the dry weight of inputed mangium wood. Results of chromatography analysis on mangium wood vinegar as conducted in Japan revealed its organic acid content at 73.9 ppm, phenol content 8.09 ppm, methanol 3.34 ppm, acidity degree 4.91 ppm, and pH 3.89. Similar analysis on the mangium wood vinegar was conducted in Indonesia's laboratories, and the results were comparable with those of Japan. Results of inhibition testings on particular microorganisms (i.e. Pseudomonas aerogjnosa, Stafi/ococms attreus, and Candidi albicans fimgz) indicated that the mangium wood vinegar could inflict antirnicrobe action on those microorganism with its effectiveness somewhat below that of liquid betel soap which could be purchased from drugstores. The experimental use of mangium wood vinegar at 3-5% concentration on ginger (Zingiber officinale var. white ginger) plants revealed significantly positive growth responses/ characteristics with respect to their height, leaf length, and sprout/ shoot development, in comparison with the untreated ginger plants (control). Such responses/characteristics were not significantly different from those using atonik's growth hormone. Likewise, the preliminary use of mangium wood vinegar at 2-percent concentration on teak (Teaonagrandis)plants, end stacks of Sborea Ieprosula and Swietenia mahagoni plants, and rice plants haveinflicted their favorable growth responses/ characteristics as well.

THE EFFECTS OF CONTROLLED SKIDDING TECHNIQUE ON RESIDUAL STAND DAMAGE AND GROUND EXPOSURE IN SWAMP FOREST LOGGING Sona Suhartana
Indonesian Journal of Forestry Research Vol 1, No 1 (2004): 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.2004.1.1.1-6

The case study was carried out at a swamp forest company in Riau in 2001. The aim of the study was to determine the effect of controlled skidding technique to residual stand damage and ground exposure. Data collected includes: felled trees, poles, trees with the diameter 20 cm up, damaged poles, damaged trees and ground exposure. The data was analyzed with t-test. The study showed the following results:The average of residual stand damage caused by controlled skidding technique was 29.05% for poles and 19.8% for trees. The average of residual stand damage caused by conventional skidding technique was 34.2% for poles and 24.9% for trees. The difference of 5.1% (poles) and 5.1 % (trees) were significant at 95%.The average of ground exposure caused by controlled skidding technique and conventionalskidding technique was respectively 16.06% and 18.4%. The difference of 2.34% was significant at 95%.

EFFECT OF POST-LOGGING SILVICULTURAL TREATMENT ON GROWTH RATES OF RESIDUAL STAND IN A TROPICAL FOREST Haruni Krisnawati; Djoko Wahjono
Indonesian Journal of Forestry Research Vol 7, No 2 (2010): 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.2010.7.2.112-124

Post-logging silvicultural treatments are generally performed to improve yields of the remaining tree species by increasing their growth rate. In this study the effects of silvicultural treatment on the growth rates of commercial (dipterocarps and non-dipterocarps) as well as non- commercial tree species in a tropical forest in West Kalimantan were examined and were compared to a control treatment. Silvicultural treatment applied was liberation of future crop trees from lianas and neighbouring competing trees. Treatments were applied to six plots of 80 m x 80 m each. The plots comprised 64 quadrats of 10 m x 10 m to allow better control of measurements. The treatment and control plots were established 6 years after logging. Effects were measured 2,4 and 7 years after treatment application. In all obser vation periods, the growth rates increased with silvicultural treatment. Overall, commercial dipterocarps, commercial non-dipterocarps and non-commercial tree species groups differed in response to silvicultural treatment. The growth rates of commercial tree species in plots that received silvicultural treatment were 62–97% higher than in the control plots. For non-commercial tree species, the increase of growth rates was 20–58%, compared to the control plots. These results indicate that the application of silvicultural treatments after logging could help improve the growth of the residual stands. These provide quantitative information that silvicultural treatments in logged-over forest should be considered as a viable management option and may guide the choice of cutting cycle.

Page 30 of 50 | Total Record : 498

28 29 30 31 32

Filter by Year

2004 2023

Filter By Issues

All Issue Vol 10, No 2 (2023): Indonesian Journal of Forestry Research Vol 10, No 1 (2023): Indonesian Journal of Forestry Research Vol 9, No 2 (2022): Indonesian Journal of Forestry Research Vol 9, No 1 (2022): Indonesian Journal of Forestry Research Vol 8, No 2 (2021): Indonesian Journal of Forestry Research Vol 8, No 1 (2021): Indonesian Journal of Forestry Research Vol 7, No 2 (2020): Indonesian Journal of Forestry Research Vol 7, No 1 (2020): Indonesian Journal of Forestry Research Vol 6, No 2 (2019): Indonesian Journal of Forestry Research Vol 6, No 1 (2019): Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research Vol 5, No 1 (2018): Indonesian Journal of Forestry Research Vol 4, No 2 (2017): Indonesian Journal of Forestry Research Vol 4, No 1 (2017): Indonesian Journal of Forestry Research Vol 3, No 2 (2016): Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research Vol 2, No 1 (2015): Indonesian Journal of Forestry Research Vol 2, No 2 (2015): Indonesian Journal of Forestry Research Vol 2, No 2 (2015): Indonesian Journal of Forestry Research Vol 2, No 1 (2015): Indonesian Journal of Forestry Research Vol 1, No 2 (2014): Indonesian Journal of Forestry Research Vol 1, No 2 (2014): Indonesian Journal of Forestry Research Vol 1, No 1 (2014): Indonesian Journal of Forestry Research Vol 1, No 1 (2014): Indonesian Journal of Forestry Research Vol 10, No 2 (2013): Journal of Forestry Research Vol 10, No 2 (2013): Journal of Forestry Research Vol 10, No 1 (2013): Journal of Forestry Research Vol 10, No 1 (2013): Journal of Forestry Research Vol 9, No 2 (2012): Journal of Forestry Research Vol 9, No 2 (2012): Journal of Forestry Research Vol 9, No 1 (2012): Journal of Forestry Research Vol 9, No 1 (2012): Journal of Forestry Research Vol 8, No 2 (2011): Journal of Forestry Research Vol 8, No 2 (2011): Journal of Forestry Research Vol 8, No 1 (2011): Journal of Forestry Research Vol 8, No 1 (2011): Journal of Forestry Research Vol 7, No 2 (2010): Journal of Forestry Research Vol 7, No 2 (2010): Journal of Forestry Research Vol 7, No 1 (2010): Journal of Forestry Research Vol 7, No 1 (2010): Journal of Forestry Research Vol 6, No 2 (2009): Journal of Forestry Research Vol 6, No 2 (2009): Journal of Forestry Research Vol 6, No 1 (2009): Journal of Forestry Research Vol 6, No 1 (2009): Journal of Forestry Research Vol 5, No 2 (2008): Journal of Forestry Research Vol 5, No 2 (2008): Journal of Forestry Research Vol 5, No 1 (2008): Journal of Forestry Research Vol 5, No 1 (2008): Journal of Forestry Research Vol 4, No 2 (2007): Journal of Forestry Research Vol 4, No 2 (2007): Journal of Forestry Research Vol 4, No 1 (2007): Journal of Forestry Research Vol 4, No 1 (2007): Journal of Forestry Research Vol 3, No 2 (2006): Journal of Forestry Research Vol 3, No 2 (2006): Journal of Forestry Research Vol 3, No 1 (2006): Journal of Forestry Research Vol 3, No 1 (2006): Journal of Forestry Research Vol 2, No 2 (2005): Journal of Forestry Research Vol 2, No 2 (2005): Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research Vol 1, No 1 (2004): Journal of Forestry Research Vol 1, No 1 (2004): Journal of Forestry Research More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Tutik Sriyati

Contact Email
ijfr.forda@gmail.com

Phone
-

Journal Mail Official
ijfr.forda@gmail.com

Editorial Address
-

Location
Kota bogor,

Jawa barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Tutik Sriyati

Contact Email ijfr.forda@gmail.com

Phone -

Journal Mail Official ijfr.forda@gmail.com

Editorial Address -

Location Kota bogor, Jawa barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Tutik Sriyati

Contact Email
ijfr.forda@gmail.com

Phone
-

Journal Mail Official
ijfr.forda@gmail.com

Editorial Address
-

Location
Kota bogor,

Jawa barat

INDONESIA