Jurnal Manajemen Hutan Tropika
Not a member yet
600 research outputs found
Sort by
The Forest Resources Information System to Support Sustainable Forest Management: Case Study Perum Perhutani
Get PDFForest resources information system aims to provide accurate and complete information periodically to support effective and efficient decision-making process. Perum Perhutani is the oldest state-owned enterprise for forestry in Indonesia. They have been developed sustainable forest management include the information system. Although forest resources information system already exists, forest quality decreases time by time. This research study aims to improve the effectiveness of forest resources information system in Perum Perhutani related to forest resources management. This study focused the observation on 1) mechanism and supporting variables of forest resources information system and 2) influence of forest resources information system on the decision-making process. Mechanism and supporting variables of forest resources information system show how is forest resources information system been working to support the decision-making process. The research was conducted by reviewing literature and depth interviewing with key informants. The results showed that the current forest resources information system could not support sustainable forest management in Perum Perhutani. This information system has weakness in data and information, procedures, technology, and user. Decision-making process highly adopts technocratic paradigm, centralized, and technically dominated by decision-maker preferences which give direct affect on information management at the site level. Forest management unit as a manager at the site level become information provider but have no authority to use information to decide management Keywords
Spatial Metrics of Deforestation in Kampar and Indragiri Hulu, Riau Province
No full textThe Riau Province has been suffering from the highest deforestation rate in Sumatra, Indonesia. Many and various factors haved been discussed as causes of different deforestation types. This research is focused on evaluating the spatial pattern of deforestation in a specific location respresenting a typical deforestation in Riau. The main objective of this study was to identify spatial metrics to describe deforestation that occurred in Kampar and Indragiri Hulu regencies.The study divided the deforestation process into 3 periods of observation, e.g., 1990–2000, 2000–2010, and 2010–2014. The study based on Landsat satellite imagery aquired in 1990, 2000, 2010, and 2014 as the main data sources. The deforestation was detected using post-classification comparison (PCC) on the basis of 11 land cover classes developed prior to any further change detection. The deforestation was initially derived from reclassifying the original classes into only forest and non-forest classes, and then followed by spatial pattern analysis using Fragstat software. The study shows that 2 spatial pattern of deforestation in Kampar distinctly differs from those occurred in Indragiri Hulu Regency, particularly for the period of 1990–2014. The spatial pattern of deforestation in Kampar Regency were clumped, low contiguous between patch, and high fragmentated. Meanwhile, the spatial pattern in Indragiri Hulu Regency were clumped, high contiguous between patch, and low fragmentated. Profile of deforestation in Kampar Regency was cathegorized into early deforestation and Indragiri Hulu Regency as lately deforestation
Preliminary Stand Table for Average Dominant Trees of Jati Plus Perhutani in Saradan, Madiun, and Ngawi Forest Districs
No full textIn order to realize sustainable teak forest management, the strategic plan of forest management is highly needed to establish the growth characteristics model of Jati Plus Perhutani (JPP). The most thing which cannot be ignored to estimate the growth and yield of teak is quantification of site quality differentiation. The objective of this study is to arrange and predict the properly yielded table of the average dominant trees of JPP in the forest management unit of Saradan, Madiun, and Ngawi. The trees sampling had been selected for the age of 6 to 12 years from the best compartment areas in JPP. Growth model and JPP\u27s yield stands were predicted using growth parameters such as diameter (dbh), total height, clear bole height, volume, and growing space. Each parameter was analyzed using SPSS 20 statistical software to determine the best growth model that will then be used to predict the stand table parameters values. The equation was selected from the highest R2 value or the value which is approaching to 1, with low standard error estimation (SEE). The result shows that best equation model to estimate the growth from tree parameters on medium site of JPP are dominated by S model and the best model for bole height is growth model. The data were taken from an initial observation as a preliminary study, further research is expected to enhance the results of current research to obtain the stand table which can be applied in the future.
Improving the OSH Knowledge of Indonesian Forestry Workers by Using Safety Game Application: Tree Felling Supervisors and Operators
No full textThis research focused on the possibility to improve the possession of OSH knowledge of Indonesian forestry workers, especially of both supervisor and operators who carried heavy responsibilities as executors of any forestry program. To meet the demand of both respondent groups, a prototype of a board - education game developed in 2015 called "The Felling Safety Games: Supervisor" was up-graded and modified. Data derived from questionnaires, direct observation, in-depth interviews, and logical assumption, provided information on (1) the recent perception of OSH knowledge, (2) the success of the education game implementation, and (3) factors that led to the success of the implementation. The fact that all respondents in this research were overrated on their OSH knowledge reflected serious problems in the field of OSH in the forestry work in Indonesia. It was satisfying to know that the safety game showed a very optimistic result, as the OSH knowledge of the workers were significantly improved after only 2-6 game repetitions. Another factor that led to the success of the implementation of the game was the performance of OSH agent who played a role as facilitator during the game. However, a strong management commitment developed based on a local-based OSH management system, remained as an important requirement for the creation of a safe work behaviour change and healthy workplace
Tunggu Tubang and Ulu Ayek: Social Mechanism of Sustainable Protected Forest Management
Get PDFPractices and traditional knowledge of smallholder farmers living forests is a potential resource to enhance landscape management. However, knowledge of the smallholder-forest relationship is still rare to explore social mechanisms that allow their relationship lasting long. The research aims to obtain further understanding of the traditional practices of forest management in Semende, South Sumatera. We visited 32 villages in Semende and stayed on several occasions in the 10 villages. We used descriptive phenomenological approach to understand the social process of successful forest management by farmers. We find the key that leads to the relations of sawah-forest to be able to be maintained against changes, that is consistent attitude towards the core values of life, whatever happens and changes. Social mechanism in the form of practices of knowledge-institution-tunggu tubang is an integral package to ensure the sustainability of forest. The social mechanism is driven by the values of respect for the elderly, extended family, real work, the search for stability and serenity in the bonds of humanity. These findings may be valuable lessons for improving forest policy.
Tree Association with Pometia and its Structure in Logging Concession of South Papua Forest
No full textPart of forests in Papua is still as logging concession. Pometia is one of target species, but there is still a lack of information regarding the ecological condition of this species. Thus, the objectives of this research were to describe what tree species (small and large individuals) associated with Pometia, how logging and soil properties influence the association and to analyze the structure of Pometia in term of diameter distribution. Canonical correspondence analysis (CCA) was applied to describe the association and its relationship with environmental factors (soil and litterfall). The results showed that association of small and large individuals of trees with both Pometia showed a different pattern in which the small individuals had a positive association and had certain tree species as a community. This association resulted from logging activity leading to the change in ecological conditions. Conversely, the association between large tree species with Pometia acuminata Radlk. and Pometia pinnata J. R. Forst. & G.Forst. showed negative pattern and tree species correlated with both Pometia were different. Of environmental factors, only C content of litterfall had a positive correlation with large Pometia acuminata and its community. Furthermore, the small individuals of Pometia were dynamic as a response to logging in which a number of the small individuals of Pometia tended to increase after logging
Forest Resource Utilization by the Siberut Community and its Implications for the Siberut Island Biosphere Reserve Policy
No full textSiberut is one of the islands in the Mentawai group, located off the West Coast of Sumatera in Indonesia. The community of Siberut is well known for their traditional wisdom in utilizing the forest resources and unique biodiversity of their island home. For this reason, Siberut has been officially declared as biosphere reserve. One of the aims the biosphere reserve concept is to enable traditional communities to use their forest resources in a sustainable manner. Unwise activities in the utilization of forest resources have implications for the whole community and for the management of biosphere reserves. This study aimed to compile and analyse first-hand information about current usage of forest resources on Siberut and to identify particular community behavior having implications for the implementation of the Siberut Island biosphere reserve policy. The study was conducted in 3 villages of Siberut traditional communities in Mentawai Islands Regency, that are Matotonan, Saibi Samukop, and Sagulubbek villages. The study applied a qualitative approach, where data were collected through a study of relevant literatures, interviews, and direct observation. Then the data were analyzed to develop an understanding of the current forest utilization and its implications for the policy in accurately. The results showed that the Siberut traditional communities are still dependent on forest resources, even though their utilization practices have been changing in recent times. For example in this research they adopted some new technologies, which it can be destructive to forest resources in the future. For that reason, the reseach suggest the management of Siberut Island Biosphere Reserve to restore those particular aspects of the traditional wisdom which have beneficial for the sustainability of forest resources utilization. In this case involving of local community starting from centre of planning to implementation process will be benefit for a better management of the reserve
Early Growth of Improved Acacia mangium at Different Planting Densities
No full textIntegrating tree improvement into silvicultural practices is essential in forest plantation. Concerning this fact, Acacia mangium spacing trial planted using genetically improved seed was established in West Java. This study was aimed to evaluate the impact of ages and planting density on early growth of improved seed A. mangium in the spacing trial. Improved seed from 2 seed orchards (SSO-5 and SSO-20) and a control of unimproved seed from seed stand (SS-7) were tested together in spacing 3 × 3 m and 2 × 2 m. Height, diameter, stem volume, and stand volume were observed at 3 ages. The results showed that improved seed consistently outperformed to unimproved seed. Ages were highly significant for all traits, but the significant difference varied among traits and seed sources for planting density and the interactions. High density performed better growth than low density at first year, and they were varied in subsequent ages depending on traits and seed sources. Improved seed from less intensity selection orchard was less tolerance to high density than that from high intensity selection orchard, but the tolerance was reversed in low density. Improved seed A. mangium from different level of genetic selection has responded differently in behavior to the changes of planting density