cover
Filter by Year
Indonesian Journal of Forestry Research
Annals of the Indonesian Journal of Forestry Research 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.
Articles
414
Articles
EARTHWORM POPULATION AT THE POST COAL MINING FIELD IN EAST KALIMANTAN, INDONESIA

Nugroho, Ardiyanto W., Widuri, Septina A., Sayektiningsih, T.

Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar |

Abstract

Coal mining activities in Indonesia result in heavy soil degradation and significant decrease in earthworm population. This study aims to explore the population of earthworms at different ages of the plant in the post coal mining rehabilitation areas. PT. Kideco Jaya Agung, East Kalimantan. In this study, 5 samples (30 cm x 30 cm, 20 cm depth) of soil were collected from 5 rehabilitation sites. Sites were selected based on age after rehabilitation: 2, 4, 6, 8 and 10 years after replanting, and sampled with 20 m distances between samples to determine earthworm population. The depth of litter layer and species of plants were also recorded at each site. Chi square analysis was conducted to determine the significance of earthworm density in rehabilitation sites at different ages, while correlation analysis was conducted to determine correlation between litter thickness and the number of earthworms found in the research sites. Only 2 species of earthworms were found in this study; their abundance increased increased in line with the age of rehabilitation areas. The number of earthworms (density) at 10 years after rehabilitation was almost similar to that in the natural forests. In conclusion, planting tree species producing significant amount of litter might stimulate the earthworm community and initiate succession. It might also take more than 10 years to return to the previous state for the earthworms in terms of density after land rehabilitation of the coal mining areas is conducted.

ANATOMICAL PROPERTIES OF NINE INDIGENOUS RATTAN SPECIES OF JAMBI, INDONESIA

Krisdianto, Krisdianto, Jasni, Jasni, Tutiana, Tutiana

Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar |

Abstract

Various rattan species grow naturally in Jambi, Indonesia, i.e. opon (Plectocomiopsis geminiflora (Griff.) Beccari), udang (Korthalsia flagelaris Miquel), getah (Daemonorops micracantha (Griff.) Beccari), duduk (D. didymophylla Beccari), tunggal (Calamus laevigatus Martius), sijau (C. tumidus Furtado), buruk ati (C. insignis Griff. var. longispinosus Dransfield), batu (C. zonatus Beccari), and paku (C. exillis Griff.). The rattan species are classified as lesser known species, which its properties are unknown to rattan supplier and consumers. This paper observes the anatomical properties of nine indigeneous rattan species of Jambi. Anatomical observations were conducted from solid, sectioned and macerated samples. Results show that anatomical properties become a diagnostic characteristic for rattan species identification and specific characteristic has been developed for key species determination. Vascular bundles in the outer part of the stem of opon and udang rattans are yellow-capped. Width and length ratio of vascular bundle in the outer part is more than 1, oval shape was found in sijau rattan, while elongated shape vascular bundle with the ratio less than 1 was found in buruk ati. Fiber bundles separated from vessels are found in central ground parencymatous tissue of rattan tunggal. In the peripheral area, fiber bundle forms one or two lines with no specific pattern found in rattan paku, while fiber bundles in one line with alternate pattern found in rattan duduk. Single resin canals are found both in center part and peripheral area is found in batu rattan and mostly single. Resin canals are found in pair at getah rattan stem. Tentative identification key to rattan species has been developed for nine species investigated, then the key should be developed for further genera identification among rattan species in Indonesia.

GROWTH PERFORMANCE OF THREE NATIVE TREE SPECIES FOR PULPWOOD PLANTATION IN DRAINED PEATLAND OF PELALAWAN DISTRICT, RIAU

Junaedi, Ahmad

Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar |

Abstract

The productivity of exotic species developed in pulpwood plantations in Indonesia (HTI-pulp) has been continuously decreasing.  On the other side, there is a possibility to develop several promising native tree species in peatland HTI-pulp plantations. However, less information is available on the performance of those native tree species for planting in peatland pulpwood plantation. This study evaluates the performances (survival rate, growth and yield) of three native trees [mahang (Macaranga pruinosa), skubung (Macaranga gigantea) and geronggang (Cratoxylum arborescens)] in drained peatland, in terms of suitability for pulpwood plantation. An experiment plot was established by planting three native tree species and krasikarpa (Acacia crassicarpa) in drained peatland at Pelalawan District, Riau. Survival, growth and yield variables were monitored frequently until 5.5 years after planting (YAP) and then were analyzed. Geronggang (survival rate = 80.0%) and mahang (survival rate = 65.6%) showed good survival rates at 5.5 YAP which were significantly (p<0.05) higher than that of krassikarpa (22.4%). Geronggang and mahang are relatively promising growth and yield in which height, diameter and yield increment until 5.5 YAP were 1.96 m/year and 2.31 m/year; 2.08 cm/year and 2.59 cm/year; 13.1 m3/ha/year and 21.4 m3/ha/year, respectively. Yet, those growths and yields were still significantly (p<0.05) lower than those of krasikarpa, probably due to unequal  seedling quality. These results indicated the potential of mahang and geronggang to be developed in peatland pulpwood plantations. However, tree improvement program is necessarily required for mahang and geronggang to initiate the development.

PHYSICAL AND MECHANICAL EVALUATION OF 8-YEARS-OLD ACACIA HYBRID (Acacia mangium x A. auriculiformis) CLONES FOR VARIOUS END USES

Sharma, S. K., Shukla, S. R., Sujatha, M.

Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar |

Abstract

Currently, clonal of forest tree is gaining importance due to the yield improvement and low variability in different wood characteristics. Hybrid trees from clonal forest are importantly characterized in term of wood quality for finding  suitable uses. Accordingly, three clones (HD3, K47, H4) of 8-year-old Acacia hybrid (Acacia mangium ? A. auriculiformis) were evaluated for inter-clonal comparison of its wood quality by evaluating their physical and mechanical properties as per Indian Standards. All tree clones were studied at breast high including diameter, heartwood content, and physical and mechanic properties. The Dbh of all  three clones was around 30??35% and 60??70% greater than pure forms of A. auriculiformis and A. mangium of the same age, respectively. The volumetric shrinkage of all  three clones was found to vary from 7.8 to 8.6%. The low shrinkage values may be attributed to higher dimensional stability of the wood of these clones. The data obtained in green and air-dry conditions were used to calculate ??suitability indices?? with respect to teak (Tectona grandis) which was taken as a reference wood for comparison in India. All the suitability indices that these clones were either comparable or slightly lower than those of pure forms of A. auriculiformis and A. mangium. Less inter-clonal variation was observed in most of the suitability indices. Though, all the three clones were exclusively grown for their use in pulp and paper industry, but the comparative suitability figures for different end uses indicate that these clones could also be used for certain non-structural applications such as tool handles, light packing cases, pallets and light furniture.

ANTIOXIDANT ACTIVITY AND TOXICITY EFFECT OF ELEVEN TYPES OF BARK EXTRACTS ACQUIRED FROM EUPHORBIACEAE

Saefudin, Saefudin, Basri, Efrida, Sukito, Agus

Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar |

Abstract

The use of natural antioxidants for medicinal purposes deserves thorough attention for their efficacy and possibly adverse toxicity. This paper studies the antioxidant actions and toxicity effects of bark extracts. The study focuses on eleven tree species of Euphorbiaceae family. Initially, bark samples from those trees were extracted using ethanol. The acquired extracts were examined for peroxide values with iodometric method. The bark extracts were chemically screened for possible antioxidant-compound contents, i.e. polyphenols, flavonoids, and saponins; and followed by oxidation-reduction test to assess the extract ability in vitro to scavenge free radicals in their standard sources, i.e. 2,2-diphenyl-1-picrylhydrazyl; altogether to determine qualitatively which species origin from bark extracts afforded the most potential as antioxidants. Toxicity test was performed on those bark extracts to assess their safety on living creatures, particularly humans as tried on shrimp larvae by counting their death, using the Brine Shrimp Lethality Test method. Results show that bark extracts of four plant species, i.e. Acalypha hispida Blume, Bischofia javanica Blume, Glochidion arboreum Blume and Sapium baccatum Roxb species afforded potentiality as antioxidants, because its peroxide value (POV) was lower than or somewhat above those of the positive control vitamin E (POV 89.45 μg/ml). However, bark extracts from Euphorbia antiquorum  L, Euphorbia hirta L, and Jatropha podagrica Hook (i.e. LC50 : 238.85; 228.11 & 194.51 μg/ml) were highly toxic, because their LC50??s value< 1000 μg/ml.

CONFLICT RESOLUTION CONCEPT: IMPLEMENTATION OF CCA-FM MODEL IN MERANTI FOREST MANAGEMENT UNIT, SOUTH SUMATRA

Napitu, Ja Posman, Hidayat, Aceng, Basuni, Sambas, Sjaf, Sofyan

Indonesian Journal of Forestry Research Vol 5, No 2 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar |

Abstract

Local communities have been using forest land area far before Industrial Forest Plantation (HTI) permit was granted. The overlapping land use among different users potentially leads to conflict. This paper studies conflict resolution creatively and collaboratively with forest management. Conflict resolution is based on the Creativity and Collaboration Action - Forest Management (CCA-FM) model on field exploration that created participation pattern of all parties in the vision of forestry science principles as the basis of policymaking. Convergent Parallel Mixed Method (CPMM) approaches with Rapid Land Tenure Assessment (RaTA) were used. Results show that claim of the community as the owner of the authority rights and dominance of the local elites, greatly affect the action situation. However, the policy options taken by the government towards policy outcomes do not tend to consider the field conditions. The CCA-FM model has been implemented in five villages. The community strongly supports the government to devolve the management rights to the community and to facilitate the transfer of knowledge, technology, market information, supporting all parties, and collaboration on business license management. Research results recommend the CCA-FM model could be a basis for building village self-reliance and improving the performance of the Forest Management Unit (FMU).

FINANCIAL ANALYSIS ON AGROFORESTRY SYSTEM OF COFFEE WITH MARRANGO TREE (Azadirachta excelsa Jack.) IN REJANG LEBONG REGENCY, BENGKULU PROVINCE, INDONESIA

Premono, Bambang Tejo, Lestari, Sri

Indonesian Journal of Forestry Research Vol 5, No 1 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar | Full PDF (439.56 KB)

Abstract

Marrango tree (Azadirachta excelsa Jack.) has been introduced as a shade tree for coffee plantations that also produces valuable timber for construction and energy. This paper analyzed the financial aspect of an agroforestry system of marrango tree and coffee plantations, including observations of land management, costs and revenues, financial feasibility and sensitivity analysis. The study was conducted in Rejang Lebong Regency, Bengkulu Province through field observations and interviews. Data was collected through direct observations, household surveys and in-depth interviews of several key actors to deepen the information and verify the collected data. Descriptive quantitative and financial analyses were employed to analyze the data. The results showed that the land management of marrango tree and coffee plant agroforestry in Rejang Lebong Regency was conducted in the traditional way. However, the agroforestry system of coffee plants and marrango tree was financially feasible at the level of 8% discounted rate (NPV = 76,250,582 IDR; BCR = 2.28 and IRR = 22%). This agroforestry system also has good resistance to changes in coffee price, coffee production and marrango tree price. The agroforestry system remained feasible although if coffee production declined by 50%, coffee price decreased up to 40%, and timber production declined up to 50%.  The changes in coffee production and price were the most influential factors on the feasibility of the agroforestry system. This agroforestry system is beneficial for the farmers. Hence, the local government should encourage the community to apply this system.

THE PHYSIOLOGICAL AND NUTRITIONAL CONTENT CHANGES OF JELUTUNG (Dyera polyphylla (Miq.) Steenis) SEED THROUGH DRYING AND STORAGE

Yuniarti, Naning, Nurhasybi, Nurhasybi

Indonesian Journal of Forestry Research Vol 5, No 1 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar | Full PDF (352.866 KB)

Abstract

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.

CONSUMPTION BEHAVIOR OF FARMER HOUSEHOLDS IN RURAL SUMBAWA, INDONESIA

Achmad, Budiman, Diniyati, Dian

Indonesian Journal of Forestry Research Vol 5, No 1 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar | Full PDF (272.001 KB)

Abstract

The welfare level of farmer in rural Sumbawa was steadily low although the potency of natural resources at their vicinity was high. This paper determines the consumption behaviour  as well as the welfare level a farmer households in rural Sumbawa, Indonesia. The household size, years of education, and farming incomes were used as indicators of on-farm performance. This research was carried out in February until April 2015 at two separate forest areas which were administratively under Labuhan Badas village, i.e.  community forestry (HKm) in the state production forest and private owned forests (POF). A number of 34 respondents perlocation were purposively selected. The multiple linear regression was implemented to analyze factors affecting farmer household consumption behaviour, while the exchange value for income earned by farmer (EVIF) was incorporated to measure the welfare level. The regression revealed that the consumption behaviour  at two groups of respondents were positively related with three indicators, i.e. household size, years of education, and farming incomes.  Meanwhile, the household size affected the consumption behaviour  of the HKm farmers but not the POF farmers.  Furthermore, the consumption is strongly affected by the income generated from both forest areas. The EVIF approach revealed that the welfare of whole farmers were still low (EVIF = 0.74-0.99). The government, therefore, should subsidize rain fed paddy and tobacco seeds varieties which are suitable with the local climate, while the farmers are trained to process the flesh of cashew fruit into wine or chips and encouraged to cultivate calliandra trees for apiculture development and wood pellet or charcoal production.

IMPLEMENTATION OF MULTI-SYSTEM SILVICULTURE (MSS) TO IMPROVE PERFORMANCE OF PRODUCTION FOREST MANAGEMENT: A CASE STUDY OF PT. SARPATIM, CENTRAL KALIMANTAN

Suryanto, Suryanto, Susilo, Adi, Onrizal, Onrizal, Andriansyah, M., Muslim, Teguh

Indonesian Journal of Forestry Research Vol 5, No 1 (2018): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Original Source | Check in Google Scholar | Full PDF (1473.18 KB)

Abstract

To date, performance of  the management of  Indonesian production forests are discouraging. The concession areas, timber production and employment have been decreasing over time. concern on these matter and to improve management, a research was conducted for six years (2008-2013) and resulted in recommendations to implement the Multi-System of Silviculture (MSS) systems. Two products were generated in MSS; criteria and indicator to guide the selection of  appropriate silvicultural system and supersilvik, a model to develop the best business plans. This paper evaluates  and strengthens the recommendations through the simulation of  MSS products in PT. Sarmiento Parakantja Timber (Sarpatim), Central Kalimantan, Indonesia. Various data variables were used, such as thematic maps of  forest areas, data of  stand, materials, equipments, labors, finances and incomes. Data were processed in a variety of  formulations which were connected to each other in model systems to produce a variety of  outcomes, such as production, finance, employment and tax contributions. Results offer four options to improve PT. Sarpatim performance, one of  which is the best choice. Compared to the former business model under limited silvicultural systems, MSS  projected an increase in the use of  land, timber production and employment by 151-753%. Implementing MSS will provide a better and healthier finance for company with an increase of  NPV up to 193%; as well as for government tax revenues with an increase up to 308%. This MSS case study strongly suggests using the new theory that the management of  production forests is a land and plant-based enterprises, which should put the land as the major capital and silvicultural aspects as the driving engine for production. The policy makers should be able to use these results as a reference in implementing MSS widely as part of  Sustainable Forest Management (SFM) practices.

Issues
All Issue 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 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 1 (2014): Indonesian Journal of Forestry Research Vol 10, No 2 (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 1 (2012): Journal of Forestry Research Vol 8, No 2 (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 1 (2010): Journal of Forestry Research Vol 6, No 2 (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 1 (2008): Journal of Forestry Research Vol 4, No 2 (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 1 (2006): Journal of Forestry Research Vol 2, No 2 (2005): Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research Vol 1, No 1 (2004): Journal of Forestry Research