cover
Article Per Year (5 Year)
All
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
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.
Arjuna Subject : -
Articles 498 Documents
 21   22   23   24   25 
SURFACE RUNOFF AND SOIL ORGANIC MATTER AVAILABILITY IN BAMBOO-BASED AGROFORESTRY IN LOMBOK TIMUR DISTRICT Handoko, Cecep
Indonesian Journal of Forestry Research Vol 9, No 2 (2012): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2012.9.2.62-72

Abstract

Bamboo-based agroforestry is suitable for soils which are poor in nutrient. The characteristics of bamboo and the rapid closure of  its canopy improve soil cover, soil nutrient availability and soil moisture  content,  and  prevent  erosion  by reducing surface runoff. The  research was aimed at determining the factors that influenced surface runoff and the availability of soil organic matter (SOM) in the bamboo-based agroforestry in East Lombok. Research was done from March 2010 to March 2011 in Lenek Daya village, Aikmel sub-district, East Lombok district. The research plots were located on slopes of 0-15o, 30-45o, and 45-65o; with bamboo canopy closures of 0-25%, 25-50%, 50-75%, and over 75%. The research involving 12 plots, each in 4 x 12 m size. Measurements included surface runoff, bamboo canopy closure, weeds and bamboo leaves litter weight, rainfall depth and duration, dissolved sediment, and soil physical and chemical properties as well as SOM. Correlation and multiple linear regression tests were used in data analysis. The results of the regression tests showed a change in surface runoff which was influenced by changes in bamboo canopy closure, rain duration, rain intensity and soil sand fraction, each by -0.019, 0.418, 0.049 and -0.065 respectively. Rain duration was the highest influencing variable, whereas bamboo canopy closure significantly decreased surface runoff. Bamboo canopy closure had no correlation with the increase of SOM. But, the increase of SOM had correlation with the increase of  soil cation exchange capacity (CEC). The positive impact of  bamboo canopy closure  on  Regosol soil fertility in  bamboo-based  agroforestry land  was determined  by  land management intensity which could increase the availability of SOM and decrease phosphorus element loss due to leaching of nutrient.
DENSITY EFFECTS AND STAND DENSITY MANAGEMENT DIAGRAM FOR MERKUS PINE IN THE HUMID TROPICS OF JAVA, INDONESIA Heriansyah, Ika; Bustomi, Sofwan; Kanazawa, Yoichi
Indonesian Journal of Forestry Research Vol 5, No 2 (2008): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2008.5.2.91-114

Abstract

NATURAL REGENERATION OF Eusideroxylon Zwageri T. et B. AT GUNUNG MERATUS PROTECTION FOREST EAST KALIMANTAN - INDONESIA Effendi, Riskan
Indonesian Journal of Forestry Research Vol 1, No 1 (2004): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2004.1.1.75-81

Abstract

A study on the natural regeneration  of Eusideroxylon Zwageri T et B, a native and multi purpose iron  wood  tree  species,  was  conducted   at the  Protection   Forest  of  Gunung   Meratus,  East Kalimantan, Indonesia.   As many as lS  mature  trees with  diameter  more  than 20 cm at breast height (1.30   m) were chosen for this study.  The amount of natural regeneration  found under  tree crown projection, were classified into  four height  classes:  less  than  SO cm, SO  -  100 cm, 100 - lSO cm and more  than  1SO   cm.   The  result showed that most of  the natural  regeneration  were in the SO  -100 cm height class, as many as   S8.7  %. Average number  of  natural  regenerations was 69.2    wildings  per tree ranging between 17  to 161. Such amount of natural regeneration  will compete  for their life and many of them will die in the competition  for food and light. Therefore some  of  those natural regenerations  especially the trees with more than 20 wildings may be used for planting stock  procurement  in the form of wildings without soil, wildings with soil, and stump
INSTITUTIONAL ANALYSIS OF REVOLVING FUND LOAN (RFL) FOR THE DEVELOPMENT OF COMMUNITY FOREST PLANTATIONS (CFP) Hendartin, Entin; Nugroho, Bramasto; Kartodihardjo, Hariadi; Darusman, Dudung
Indonesian Journal of Forestry Research Vol 8, No 2 (2011): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2011.8.2.158-169

Abstract

The purpose of this study was to formulate effective and efficient institutions of Revolving Fund Loans for Community Forest Plantation development (RFL CFP) in accordance with variation of field conditions. Benchmarking techniques were used to formulate the institution of RFL CFP. For that purpose, Independent of Direct Assistance Rural Agribusiness Development (IDA RAD) from the Ministry of Agriculture was selected as a benchmark as it was good in performance. The study was conducted in three provinces, i.e. Riau, South Kalimantan (November 2008 to April 2009) and West Java (May 2009 to February 2011). Comparative study was used to analyze the institutions based on the agency theory. The results showed that the institutional of RFL CFP have not accomodated the differences in characteristics, perceptions and capacities of the parties. As a result, the institutions have not been able to overcome the risk of moral hazard, adverse selection and high transaction costs. On the other hand, the institution of IDA RADhas a positive impact on agency relationship. High repayments by IDA RADagent and the increasing number of agents each year have proved the impact.
PREDICTION OF TEAK BONITA (SITE INDEX) IN CENTRAL JAVA, INDONESIA, BASED ON SOIL PROPERTIES Anwar, Chairil
Indonesian Journal of Forestry Research Vol 4, No 1 (2007): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2007.4.1.9-18

Abstract

The objective of this study was to determine the most correlated soil and physiographic factor with the site index of teak. Tree height and stand age were recorded from seventy-three plots located in Central Java, Indonesia, to determine site index. Size of each plot was 0.1 ha. Measured site properties measured were percent slope, elevation, slope position, slope length, dominant topographic form, aspect, and thickness of A horizon. Soil samples from A and B horizon were analyzed for soil color, soil texture, available phosphorous, total nitrogen, and organic matter content.  Analysis indicated that the site index of teak was positively correlated with thickness of A horizon and westerly aspects, and negatively correlated with clay content of A horizon and elevation. A multiple regression using these variables produced an R2 of 0.55.
THE POTENTIAL OF FOREST BUFFER TO PREVENT STREAM FROM WATER POLLUTANTS:A CASE STUDY IN GROJOKAN SEWU SUB-WATERSHED, KARANGANYAR DISTRICT, CENTRAL JAVA Wahyuningrum, Nining; Pramono, Irfan Budi
Indonesian Journal of Forestry Research Vol 10, No 2 (2013): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2013.10.2.101-109

Abstract

Population growth leads to water scarcity in terms of both quality and quantity. Agricultural and urban watersheds potentially produce more pollutantsthan forested area. It is considered that forested area has potential in storing and protecting water supply in such a way that water distribution and quality can be guaranteed. The objective of  the study was to determine the relationship between the percentages of forested area in a watershed with the water quality. Thestudy was conducted in 2010in GrojokanSewu Sub-watershed, Karanganyar District, Central Java. Using GIS (Geographic Information System), this sub-watershedwas divided into four sub-sub-watershedswith different percentages of forested areas. Water samples were collected in each sub-sub-watershedto find out the relationship between the forested area and the total dissolvedsolids, turbidity, sodium, nitrite, nitrate, sulfate and organic matters. The statistical analysis indicates relationships in quadratic form between sodium, nitrite, TDS, sulfate and organic matters with the percentage of  forested area (R2=0.99, R2=0.99, R2=0.98, R2=0.95 and R2=0.77, respectively). The relationships are different from those of turbidity and nitrate that have low R2 (R2=0.28 and R2=0.36) values. It implies that the forested area is capable to reduce sodium, nitrite, TDS, sulfate and organic matters, and thus water pollutants can be reduced by forest formation as it can filter water through retention of sediments and nutrients.
ARBUSCULAR MYCORRHIZAL FUNGI INCREASED EARLY GROWTH OF GAHARU WOOD OF Aquilaria malaccencsis and A. crasna UNDER GREENHOUSE CONDITIONS Turjaman, Maman; Santoso, Erdy; Sumarna, Yana
Indonesian Journal of Forestry Research Vol 3, No 2 (2006): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2006.3.2.139-148

Abstract

Gaharu wood stand has an important source of profits to the forest community in South and Southeast Asia tropical forest countries, but Aquilaria species have reduced in number and turn out to be endangered due to overexploitation.   Today,   the planting stocks of   Aquilaria species are not sufficient to sustain the yield of gaharu wood and promote forest conservation.  The objective of this study was to determine   the effect of   five arbuscular mycorrhizal (AM) fungi: Entrophospora sp., Gigaspora decipiens, Glomus clarum, Glomus sp. ZEA, and Glomus sp. ACA, on the early growth of  Aquilaria malaccensis and A. crasna under greenhouse conditions. The seedlings of  Aquilaria spp. were inoculated with Entrophospora sp., Gi. decipiens, Glomus clarum, Glomus sp. ZEA, Glomus sp. ACA and uninoculated (control) under greenhouse conditions. Then, percentage AM colonization, plant growth, survival rate and nitrogen (N) and phosphorus (P) content and mycorrhizal dependence (MD) were measured. The percentage AM colonization of A. malaccensis and A. crasna ranged from 83 to 97% and from 63 to 78%, respectively. Colonization by five AM fungi increased plant height, diameter, and shoot and root dry weights. N and P content of  the seedlings were also increased by AM colonization. Survival rates were higher in the AM-colonized seedlings at 180 days after transplantation than those in the control seedlings. The MD of Aquilaria species was higher than 55 %. The results suggested that AM fungi can be inoculated`to Aquilaria species under nursery conditions to obtain vigorous seedlings, and the field experiment is underway to clarify the role of AM fungi under field conditions.
REALIZED GENETIC GAIN AND SEED SOURCE X SITE INTERACTION ON STAND VOLUME PRODUCTIVITY OF ACACIA MANGIUM Nirsatmanto, Arif; Setyaji, Teguh; Wahyuningtyas, Reny Setyo
Indonesian Journal of Forestry Research Vol 1, No 1 (2014): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2014.1.1.21-32

Abstract

Following the results of the comprehensive tree improvement programs for Acacia mangium, it is necessary to estimate the real amount of genetic improvement and to develop an improved seed deployment strategy.  This study was aimed to verify realized genetic gain on stand volume productivity attained by the first-generation Seedling Seed Orchards (SSO) of A. mangium and to identify the magnitude of seed sources x site interaction as a basis for improved seed deployment. Seeds from five SSOs were tested together with seeds from seed stand in genetic gain trials which were established in South Kalimantan and Central Java. Realized gains were calculated from the percentage improvement of respective SSOs compared with seed stand at two and four years of age. Seed source x site interaction was investigated through analysis across the two sites.  Results of the study showed that trees derived from the five SSOs produced better stand volume than those from seed stand. At four years of age, stand volume of the best SSO reached around 127 m3/ha in South Kalimantan and 84 m3/ha in Central Java.  Realized genetic gain were around 66% at two years and 59% at four years in South Kalimantan, and around 136% at two years and 81% at four years in Central Java.  Seed source x site interaction was not significantly different indicating superiority of improved seed were consistent across the two sites with the average realized gain ranging from 18% to 79% and 24% to 62%  at two and four years, respectively. The best three SSOs were SSO-1 located in Pleihari-South Kalimantan, SSO-2 in Pendopo-South Sumatra and SSO-5 in Wonogiri-Central Java, all of which  originated from Papua New Guinea provenances. Improved seed from the orchards could be used at plantation sites without any significant change of the order in their superiority for stand volume productivity.
IMPACTS, PATTERNS, INFLUENCING FACTORS AND POLICIES OF FUELWOOD EXTRACTION IN WAY KAMBAS NATIONAL PARK, INDONESIA Rakatama, Ari
Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2016.3.1.33-47

Abstract

Without good control, fuel-wood extraction from conservation forest, such as Way Kambas National Park (WKNP), can threat the existence of the forest. This paper observes the way to tackle the forest degradation in WKNP, with minimum impacts to the local people who use the fuel-wood. The study includes analysing the appropriate policy for using the fuel wood. Observation was carried out by analysing existing data and maps of WKNP in various perspectives: forest degradation, inventories, analysis of current policies, survey on how fuel-wood is extracted, mapping the mobilisation of fuel-wood gatherers, survey on fuel-wood demand, and identification of further policy options. The results show that there is fuel-wood extraction activity in WKNP influenced by income level, land ownership, the number of household members, the distance to forest area, and the age of patriarch. However, this activity is tolerated by unwritten policy at local level, although this is forbidden by written policy at national level, so this creates the failure in maintaining sustainable off-take of fuel-wood. This is supported by the fact that fuel-wood extraction in WKNP triggers the reduction of forest stock and the changes of species diversity, species evenness, and old-young tree ratio due to destructive techniques used such as slashing, scratching cambium, and cutting trees. Therefore, some recommended policy options are legalizing fuel-wood extraction with limitations, providing alternative fuel-wood and other biomass energy resources outside WKNP, running preventive and pre-emptive measures, cooperating with other stakeholders, and empowering local economic
STIGMA RECEPTIVITY AND POLLEN VIABILITY OF Melaleuca alternifolia Baskorowati, Liliana
Indonesian Journal of Forestry Research Vol 6, No 1 (2009): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2009.6.1.26-37

Abstract

Stigma  receptivity based on seed set and pollen  tubes growth  following controlled pollination of flowers  of different  ages was examined  in Melaleuca alternifolia. The stigma secretion during 10 days after anthesis and pollen viability under three different temperatures and five storage times were also observed. These series of research were undertaken because successful controlled pollination of M. alternifolia depends on the application of viable pollen to the receptive compatible  stigma. The objective of this research was therefore to determine the stigma receptivity and pollen viability of M. alternifolia. Results showed that the stigma receptivity began to develop  on day  one and finished  on day  seven after anthesis,  peak receptivity occurred from day three to day six. The stigma receptivity also coincides with the appearance of secretion in the stigma, occurring  from day three to day seven after anthesis. Therefore,  the time for pollination of M. alternifolia appeared to extend for  approximately 7 days after anthesis. Data for M. alternifolia showed that regardless of storage temperature, pollen  was still  viable  after 26 weeks  of storage;  results also demonstrated  that the lowest temperature  (-18oC) was the best regime for long term storage.

Page 23 of 50 | Total Record : 498

 21   22   23   24   25 

Filter by Year

2004 2023


Reset
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