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INDONESIA
MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management
Published by Institut Pertanian Bogor
ISSN : 20870469     EISSN : 20892063     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Manajemen Hutan Tropika is a periodic scientific articles and conceptual thinking of tropical forest management covering all aspects of forest planning, forest policy, utilization of forest resources, forest ergonomics, forest ecology, forest inventory, silviculture, and management of regional ecosystems.
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol. 22 No. 3 (2016)" : 7 Documents clear
Microbial Community Behaviour in The Rhizosphere of Kilemo (Litsea cubeba L. Pers) After Pruning Enny Widyati
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Pruning is a removing some parts of the tree canopy, either for improving tree shape or increasing shoot productivity. It can be implemented in yield management of commodities that are harvested its shoot biomass, such as tea or kilemo. This activity interferes plant growth, hence affect root secretion. Consequently, it alters soil microbe populations in the rhizosphere. This paper observes the impacts of pruning on fluctuation of root exudates (soil sugar) and rhizosphere communities of 2-years-old Kilemo (Litsea cubeba L. Pers.). Tree samples were pruned by removing shoots above the lowest branches. A month after cutting, trees were fertilized using three types of fertilizers: leaf, NPK, and organic fertilizer. As a control, there were non-fertilized treated trees. To observe the root exudation and microbes populations, 0−20 cm depth of soil at rhizospheres were collected from 10th, 30th, 60th and 90th day after pruning.  Samples were further analyzed for observing the amount of soil-sugar and microbes population, such as N-fixer, cellulose degrader, and phosphate solubilizer. Results show that Kilemo root drastically decreased their sugar exudation by 22% (10th day), 28% (30th day), 44% (60th day) and 70% (90th day), respectively. Therefore, those populations were significantly depleted.  Rhizosphere sugar can be improved by fertilization, however, the augmentation did not enhance the rhizosphere communities.
Biodiversity of Plants and Birds in Reclamation Area of PT Bukit Asam, Muara Enim, South Sumatera Dimaz Danang Al-Reza; Lilik Budi Prasetyo; Rahmad Hermawan
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Mining activities will reduce species diversity, whereas forest reclamation would restore the species diversity, which was previously a forested area. This research was conducted in PT Bukit Asam area, in 6 locations, and in natural forest, as a comparison. The objective of this research was identifying biodiversity of plants and birds in a reclamation area which had different planting years through an approach of diversity indices of vegetation and birds (H'), index of species similarity of plants and birds, and leaf area index (LAI). Research results showed that secondary succession occurred in the reclamation area. The value of plant diversity index in reclamation area of 1995 planting year exhibited diversity values which approached that of natural forest, except for undergrowth vegetation. Index of plant species similarity between reclamation area and natural forest did not show any presence of similar communities, but the reclamation area of 1995 planting year exhibited values of plant species similarity indices at all strata, ranging from undergrowth vegetation, seedlings, saplings, poles, and trees. Index of bird diversity in reclamation area of planting the year 1998 possessed the highest value and approached that of natural forest, namely 2.43. Reclamation area of 1998 planting year possessed the highest similarity index of bird species, namely 50%. Reclamation area of the planting year 1995 possessed LAI which approached natural forest, namely 1.89.  The older the planting year, the larger was the value of LAI, except for the disturbed reclamation area, namely reclamation area of 1996 planting year and reclamation area of 2001 planting year.
Spatial Modeling for Determining Managerial Options for Structuring Productivity in KPH Bogor Ricca Rohani Hutauruk; Nining Puspaningsih; Muhammad Buce Saleh
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

KPH Bogor Ricca Rohani Hutauruk1, 2*, Nining Puspaningsih3, Muhammad Buce Saleh31Graduate School of  Bogor Agricultural University, Dramaga Main Road, Campus IPB Dramaga, Bogor,Indonesia 16680 2Trainer, Environment and Forestry Education and Training Bogor Agency,The Ministry of Environment and Forestry, Jl. Prada Samlawi Rumpin, Bogor, Indonesia 3Department of Forest Management, Faculty of Forestry, Bogor Agricultural University, Academic Ring Road,Campus IPB Dramaga, PO Box 168, Bogor, Indonesia 16680Received Agustus 23, 2016/Accepted October 20, 2016AbstractIn the past few years, forest management unit (KPH) Bogor has experienced many problems, technical, environmental and social, affecting the company's finances. This condition requires new breakthroughs in the form of managerial options in managing the forests of KPH Bogor. At present, KPH Bogor has formulated 12 managerial options. The purpose of this study is to build a spatial model in selecting managerial options at site level. The spatial models were built based on the score of each land unit which was obtained from expert judgment using an intensity scale, while weight was obtained using a pairwise comparison, resulting in the following equation: total score = 0.14 (0.06x1 + 0.11x2 + 0.09x3 + 0.08x4 + 0.10yx5 + 0.31x6 + 0.25x7) + 0.72 (0.08y1 + 0.22y2 +  0.46y3 + 0.13y4 + 0.12y5) +0.14 (0.45z1 + 0.05z2 + 0.44z3 + 0.06z4). The resulting total score was then divided into 5 classes using the equal interval method. The results for each of the managerial options were then aggregated using GIS to create KPH Bogor's management pattern. In areas where there was an overlap due to the similarity in options, a decision support system using neighboring similarity spatial analysis was used. This step allowed the spatial model to be built with many biophysical, social, and economic variables. This spatial model could map 12 types of managerial options at site level in the production structuring in KPH Bogor.
Tree Association with Pometia and its Structure in Logging Concession of South Papua Forest Agustinus Murdjoko; Djoko Marsono; Ronggo Sadono; Suwarno Hadisusanto
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Part 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.
Trust Building to Coordinate Collective Action in Reforestation Program Anna Indria Witasari
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The study explores the way trust among agencies is established to coordinate collective action in rehabilitating protected areas, which have been utilized, commodified, and settled. Using an ethnography approach, the fieldwork was conducted in the villages surrounding 2 protected areas of West Lampung and South Lampung Districts in Lampung Province of Indonesia. There are several factors which hinder trust building process  i.e. past experiences in relation to eviction from protected areas, forest policies which are not consistent, forest status which is protected areas, and the attitude of forest officers which consider land users as has no responsibility for conservation. Among those factors, forest policies which discursively and materially incorporate trust-building are the main factors which may help forest land rehabilitation process. Trust building process through negotiation where prejudice is turned into understanding among agencies still offer the possibility for forest rehabilitation efforts in the context of commodified landscape, agrarian change, and migration. However, negotiation is established through 'give and take' mechanisms, trial and error, and a learning process. Landscape transformation where forest land rehabilitation occurs relies on the 'art' of 'negotiation' at a local level.
Consistency and Coherence of Turtle Conservation Policies in Venu Island Wildlife Sanctuary, Kaimana, West Papua Zeth Parinding; Sambas Basuni; Herry Purnomo; Nandy Kosmaryandi; Yusli Wardiatno
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Policy management of turtle conservation in the region of Venu Island Wildlife Sanctuary, Kaimana, West Papua is indispensable. Therefore, this study aimed at examining the turtle conservation policy and it’s implementation, both the consistency and coherence. The analytical method used is content analysis and simple mathematic statistics. The consistency of turtle conservation management policies is found inconsistent in implementation. Similarly, coherence between the policy on turtle conservation management with government policy is found incoherent, as it is more oriented to "economic growth" compared to turtle conservation management. This is due to weak management, among others: communication, resources, attitudes and behavior, and bureaucratic structures. "Management Authority Multi-stakeholder" was found as a form of the collaborative approach in carrying out the turtle conservation among institutional managers with other key stakeholders. Consolidation of these institutions need to be carried out by non-governmental organizations, i.e., Conservation International (Indonesia) Corridor Kaimana and local government, i.e., the Department of Marine and Fisheries, Department of tourism and culture along with Indigenous Peoples. So policy integration among sectors as well as the consistency and coherence should be coherent in the approach to building synergy with policies of sustainable management of turtle conservation in the region of Venu Island Wildlife Sanctuary, Kaimana, West Papua.
The Forest Resources Information System to Support Sustainable Forest Management: Case Study Perum Perhutani Ahsana Riska; Muhamad Buce Saleh; Hendrayanto Hendrayanto
Jurnal Manajemen Hutan Tropika Vol. 22 No. 3 (2016)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Forest 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:

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