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MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management

jmht
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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

Search results for , issue "Vol. 20 No. 3 (2014)" : 7 Documents clear

Effects of Forest Cover Change on Flood Characteristics in the Upper Citarum Watershed Bambang Dwi Dasanto; Bambang Pramudya; Rizaldi Boer; Yuli Suharnoto
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

Information on the effect of forest cover changes on streamflow (river discharge) in large-scale catchment is important to be studied. The rate of forest cover change in the Upper Citarum Watershed as a large-scale catchment is high enough to drive streamflow change, such as increase of discharge level, or flood volume. Within the research area, flood would occur when the volume of streamflow exceeded the canal capacity and inundated areas that were normally dry. Therefore, this research focused on identifying the effects of forest cover change on flood events and its distribution. The research consisted of 2 main stages; firstly, building geometric data of river and performing frequency analysis of historical and scenario discharges using an approach of probability distribution; and, secondly, flood inundation mapping using HEC-RAS model. The results showed that forest reduction have affected water yield in the downstream of Upper Citarum Watershed. In each return period, this reduction have increased river discharge level and affected the spread of flooded areas. In 2-year return period, the extent of flood as an impact of forest reduction was estimated to decrease slowly. However, in the return period of more than 2 years, the spread of flooded areas increased sharply. These proved that forest cover reduction would always increase the discharge value, but it did not always expand the inundated area.

Plant Species Richness After Revegetation on The Reclaimed Coal Mine Land of PT Adaro Indonesia, South Kalimantan Mochamad Arief Soendjoto; Dharmono Dharmono; Mahrudin Mahrudin; Maulana Khalid Riefani; Didik Triwibowo
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

The focus of monitoring was the plant purposely cultivated because after re-vegetation, there were a very few of other plants growing naturally on reclimed coal mining area which were recorded, whereas these plants had important values. The research aimed to record all plants and to identify predominant plants over the reclaimed land of PT Adaro Indonesia. There were four sampling locations with 13 squares of 50 × 20 m2 on each location established and on each square there were 5 plots of 2 × 2 m2 plotse made. Both plant species and its individual number of woodyplant saplings were recorded on each square, so in each plot, there were small species and its individual number of either woody-plant seedlings or non-woody plants (herbs/shrubs, grasses, ferns). The relative density and the relative frequency of woody or non-woody plants were summed to obtain the important value index (IVI) of each successional stage. There were 107 plant species consisting of 32, 43, 27, and 5 species of saplings,seedlings/herbs/shrubs, grasses, and ferns respectively. From those species, 16 species of woody plants and 2 species of herbs were planted purposely,other species grew naturally and even some of them were dominants. Either the number of plants or the dominating plant is varied according to the sampling location and the growing stage.

The State and the Development of Industrial Plantation Forest Sudarmalik Sudarmalik; Hariadi Kartodihardjo; Sudarsono Soedomo; Soeryo Adiwibowo
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

Development of industrial plantation forest is a form of principal-agent relationship, in which the Ministry of Forestry as a principal gives utilization permit to the entrepreneur as an agent, known as the Forest Timber Product Exploitation Permit on Planted Forest. This utilization permit obtained by the agents is operationally conducted by other parties through a cooperative agreement. The purpose of this study is to obtain an information regarding to the state position in the development of industrial plantation forest. The study was conducted in Riau Province, using the constructivist paradigm with phenomenological method. Data were obtained through in-depth interviews to selected informants. Data were also obtained from the review of documents to complement the interview. Data analysis was conducted using property rights and principal agent theories. The phenomenon of multi-chain transfer of the management rights of plantation forest that occoured in the observed companies showed that the state was unable to effectively control to the forest plantation. The study recommends that state should issue regulation to decrease or stops further transfer of the management rights of plantation forest. However, further study needs to overcome the existing over accumulation of plantation forest in a few hands.

A Comparative Study on The Perception of Forest Landscape Using LIST Method Between University Students of Japan and Indonesia Prita Indah Pratiwi; Bambang Sulistyantara; Andi Gunawan; Katsunori Furuya
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

Forest is not only assessed for timber production, but also for public interests. It is not easy to measure the multiple functions and existence values that forests represent to local residents. The purposes of this research were to classify landscape image aspects of students using LIST (Landscape Image Sketching Technique), to know students' attributes influencing perception, and to formulate the differences of forest landscape characters. The research was conducted in three stages: landscape image survey, landscape image analysis, and forest landscape interpretation. LIST method was applied to classify landscape image aspects. Chi-square test was applied to examine the significant differences between students of Japan and Indonesia to perceive forest landscape, while cluster analysis was applied to characterize forest landscape. The results showed that 10 prominent components were detected in both countries. The only attribute influencing perception for Indonesian students was gender. Japanese students categorized forest type into needle leaf, broadleaf, and unknown forest type, while Indonesian students classified forest type into broadleaf and unknown forest type. The results of this study might be useful as a guidance for forest landscape design in Japan and Indonesia.

Reforming the Gazettment of State Forest Area in Riau Province Pernando Sinabutar; Bramasto Nugroho; Hariadi Kartodihardjo; Dudung Darusman
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

Controlling and determining ownership of forest area in Indonesia are done by units of forest area gazettment, which are ranging from designation to determination of boundary. The process is not quite easy and have tendency to be unsuccessful. The aim of study was to reveal the difficulty and to analyze series of measurements to reform. Descriptive data were analyzed qualitatively using strategy typology based on data collected through in-depth interviews, participant observation and document review. The results showed that forest area gazettments had not been able to guarantee tenure as proof of ownership at local level dominated by proven un-written rights. Delineation process had potential conflict because it did not disclose claims process in a transparent manner. The mechanism of strengthening forest area did not meet the rules. This is because of low capability of Forest Boundary Committee (PTB). Therefore, it requires a set of actions namely strengthening of the PTB, separating duties between achievement and maintenance of legitimacy. To maintain the legitimacy needs the presence of managers at site levelwith strong legitimacy from government to collaborate with non-governmental organizations.

Customary Right Compensation and Forest Villages Development Programs of Mangrove Company at Bintuni Bay Papua Barat Wahyudi Wahyudi; Max Jondudago Tokede; Zulfikar Mardiyadi; Ana Tampang; Mahmud Mahmud
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

Mangrove at Bintuni bay offers various services to indigenous communities from ecology, social, and economic. Mangrove also could be harvested accordingly to optimize contributions to indigenous communities welfares. This paper highlights implementation of customary right compensation (CRC), and Forest Villages Development programs (FVDP) of mangrove company at Bintuni Bay, Papua Barat. Company reports and documents related to CRC and FVDP from 1988 to June 2013 were reviewed and analyzed. Field works were conducted to examine the implementation of both programs at four villages of two districts. Sustained mangrove harvest for chipwood production in Bintuni bay for more than 25 years is the most outstanding achievement of mangrove utilization and management in Indonesia. Huge amount of expenditure have been spent out, and given to indigenous communities through the CRC and FVDP programs, respectively. These cover from economic, social, and environmental related programs, manufactured public facilities, scholarships, and others. However, the indigenous communities are remained poor, and failed of being self-sufficient community. It clearly impresses that the main goals to improve the welfare, prosperity of indigenous people are considerable failed. It is presumably that social culture systems, and subsistence agriculture practices contribute to the failing these programs. Mostly, forest communities in Papua are practicing subsistence agriculture, hunting, heavily relying on their surrounding natural resources, and spending all their cash or money instantly for consumption, not for saving, investments or even productive activities. Therefore, several program could be initiated to improve in achieving the CRC and FVDP missions, such as building capacity, providing counselors and strengthen local community governance, which could accelerate of being self-reliant community.

Evaluation of Annual Allowable Cut (AAC) Determination of Teak Forest Plantations in Perum Perhutani, Indonesia Rohman Rohman; Sofyan P Warsito; Nunuk Supriyatno; Ris Hadi Purwanto; Catur Atmaji
Jurnal Manajemen Hutan Tropika Vol. 20 No. 3 (2014)
Publisher : Institut Pertanian Bogor (IPB University)

The degradation of teak forest plantations in Java that are managed by Perum Perhutani (PP) continues to happen, and this is caused by some risk factors such as illegal logging, grazing, forest fire, and encroachment. However, these risk factors have not been considered by PP notably in annual allowable cut (AAC) determination of yield regulation. Therefore, the AAC value could be overestimated. The research was aimed at evaluating the method of AAC determination and proposing an alternative method that considers the risk factors. This research was conducted with a series of data analysis approach from the data on five planning periods. The research result showed that forest damage occurs in varied situations. On average, the rate of deforestation accounted for 0.8% per annum. The calculation of AAC by considering the rate of damage risk in normal condition approximately made up 70.8%. Thus, compared to another method without considering damage risk rate, overestimation constituted 29.2%. In brief, this had an impact on the decline of timber stock.

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