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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 466 Documents
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Analisa Keseimbangan Pasar dan Reposisi Strategi Pemasaran Kayu Lapis Dodik Ridho Nurrochmat; Tatang Tiryana
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The economic crisis’ turbulence blows down almost all of Indonesian export commodity, included plywood. Dissolution of JMB-Apkindo (Joint Marketing Body-Association of Indonesian wood based panel) as an implementation of Letter of Intent between Indonesian Government and International Monetary Fund caused reposition of the Indonesian plywood marketing. Impacts of the dissolution of JMB are weakening of the bargaining position of Indonesian plywood market and pushing down the international price of Indonesian plywood. The large scale of illegal logging that follows reformation’s euphoria is another problem which influences supply-demand of timber products. A right strategy in the forestry sector policy especially in plywood marketing is needed to overcome the above problems.
Evaluasi Pertumbuhan Tanaman Meranti (Shorea spp.) di Haurbentes BKPH Jasinga KPH Bogor Perum Perhutani Unit III Jawa Barat I Istomo; Cahyo Wibowo; Nurul Hidayati
Jurnal Manajemen Hutan Tropika Vol. 5 No. 2 (1999)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Planting trials of Shorea spp. have been conducted outside their natural distributional range. Initially it was planted in Haurbentes Experimental Garden (1940) at Jasinga, West Java. This research is intended to get information about growth of all of Shorea's variety that have been planted at 1984, 1988 and 1992 at the location, so we can select the species that suitable to be explored. From each of them, we take four sample plots. The size of the sample plot is 50 m x 50 m or about 0,25 ha. The results of the trial showed that Shorea spp. stand was flowering and giving a good seed harvest.  It was also shown that the biggest growth species is Shorea leprosula Miq., namely 30,65 cm (total height) and 19,88 m (diameter) at 13 years old. The averages of the height and diameter growth are 0,49-0,66 m and 0,48-0,64 cm per 6 month at 9 years old. The species that are suggested to be explored at the location are S. leprosula Miq., S. stenoptera Burck, S. stenoptera Burck forma and S. pinanga Scheff.
Prospek dan Tantangan pengembangan Industri Pulp dan Kertas Indonesia dalam Era Ekolabeling dan Otonomi Daerah F Gunarwan Suratmo
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The history and purpose of Ecolab ling system should be understand and also the relation with ISO 9000 and ISO 14000 and then the problems of Agribusiness development on pulp and paper production con be predicted in the district otonomi system. Capacity building and educated manpower in the district level should be improved. Negative impact of ecolabel system in International Trade Should be avoided. National ecolabel institute will be more favourable then international ecolabel institute.
Komposisi Jenis Hayati di Ekosistem Tambak Tumpangsari Pola Empang Parit: Studi Kasus di RPH Tegal Tangkil, BKPH Ciasem, KPH Purwakarta, Jawa Barat Jeni Riviana; Cecep Kusmana; Agus Priyono
Jurnal Manajemen Hutan Tropika Vol. 5 No. 2 (1999)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Biotic component composition of silvofishery using cannal-pond pattern was elucidated in this study. This pattern is the combination between fishpond canal and mangrove vegetation growing in the center.  Sampling method was conducted in the four fish ponds with different variation of mangrove vegetation composition, such as Avicennia marina monoculture, Rhizophora mucronata monoculture, regularly mixed Rhizophora mucronata and Avicennia marina, and randomly mixed Rhizophora mucronata and Avicennia marina.  The research results showed that empang parit (fish pond) having a randomly mixed R. mucronata and A. marina give the most suitable habitat for the terrestrial fauna and aquatic biota as a feeding and breeding areas.
Integrasi Pengetahuan Tradisional dengan Pengetahuan Ilmiah untuk Pengelolaan Hutan Lestari Herry Purnomo
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Scientific knowledge faces a limitation to describe the complexity of forest ecosystem and its involved local communities. Integrating traditional and scientific knowledge is necessary to deal with this complexity. A knowledge-based system with fuzzy logic may become an alternative to complete scientific knowledge by integrating it with traditional knowledge. The paper describes how the integration can be made.
Analisis Beberapa Rumus Penduga Volume Log: Studi Kasus pada Jenis Meranti (Shorea spp.) di Areal HPH PT Siak Raya Timber, Propinsi Riau M Muhdin
Jurnal Manajemen Hutan Tropika Vol. 5 No. 2 (1999)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Determining the stem volume of a tree, both a standing or felled tree, has long been a chronic problem for foresters, whereas, the need for an accurate estimate of wood volume is becoming more important. The use of Brereton’s formula in Indonesia, nowadays, was based solely on practical consideration in obtaining the data which comprise diameter of the large and small ends of logs; and logs length. However, the relative accuracy of this formula in comparison with other formulae still needs to be tested.  The result of this study by using 499 logs in PT Siak Raya Timber (Riau Province) showed that Centroid and Newton’s formulae have the best performance (seen from bias, accuracy and precision) for estimating the log volume of meranti in Sumatera. Bias of both formulae is around zero and very small, therefore it could be neglected. Huber’s formula tends to underestimate the volume, but it has still better performance than Brereton’s, Smalian’s and Bruce’s formulae. Brereton’s and Smalian’s formulae tend to overestimate the volume, whereas Bruce’s formula tends to underestimate. Deviation of errors for Brereton’s is consistently smaller than Smalian’s, and for Bruce’s is the largest one. But, precision for Brereton’s, Smalian’s and Bruce’s formulae are nearly the same.
Deteksi Kondisi Hutan Paska Kebakaran Melalui Citra Multisensor MOS-MESSR dan Landsat TM: Studi Kasus di Areal PT. MHP Sumatera Selatan I Nengah Surati Jaya; Endang Pujiastuti; Muhammad Buce Saleh
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

This paper presents how the multisensor MOS-MESSR and Landsat Thematic Mapper (TM) should be manipulated as tools for detecting land cover changes. Radiometric correction using image regression was recognized as useful approach to adjust pixel brightness value of MOS-MESSR. In this study, the standardized MPC showed comparable accuracy, similar to DMC method. Using this technique forest changes due to fire as well as land clearing were well recognized. Some recommendations and suggestions for improving classification accuracy of change detection using multisensor MOS-MESSR and Landsat TM were drawn up from this study.
Tehnik Mendeteksi Kebakaran Hutan Melalui Citra Satelit Multiwaktu: Studi Kasus di Propinsi Sumatera Selatan dan Riau I Nengah Surati Jaya; Muhammad Ikhwan; N Nurhendra; Soedari Hardjoprajitno
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

This paper describes the techniques for detecting forest and land fire. Of the three change detection techniques evaluated, i.e., post-classification comparison, multitemporal principal component and direct multitemporal classification, the multitemporal principal component, specifically that was derived from variance-covariance matrix (unstandardized principal component) was recognized to be suitable in detecting changes due to forest and land fires. The study found that the delta brightness, delta greenness, stable brightness and stable greenness indices derived from unstandardized multitemporal principal component analysis effectively summarized burnt-forest information. In this study, it was shown that Landsat TM provides information of totally and moderatelly burnt logged-over forest as well as burnt bush/shrub.
Studi Perencanaan Pengelolaan Lahan di Sub DAS Cisadane Hulu Kabupaten Bogor Nining Puspaningsih
Jurnal Manajemen Hutan Tropika Vol. 5 No. 2 (1999)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The research area is an upper watershed and is a land culture for the peasant its self. Then in the plan of land management have to participate the social economic life of community in this area. The alternative plan of land management based on the erosion prediction (A) and to enable erosion (T).  The land management and the techniques of land conservation have to arranged if A value more high then T value. This problem happened because the negative impact of land changes. These values must be manipulated in order to A value less than T value.  The selection of CP value have to less then and equal with the T/RKLS ratio or the CP maximum value. The must of part of area research have A value more high then T value and plan alternative is rice field, dry field and mixed field with system tumpang sari, agro tourism and protection forest areas.
Respon Pertumbuhan Akar Tanaman Sengon (Paraserianthes falcataria) terhadap Kepadatan dan Kandungan Air Tanah Podsolik Merah Kuning Omo Rusdiana; Yahya Fakuara; Cecep Kusmana; Yayat Hidayat
Jurnal Manajemen Hutan Tropika Vol. 6 No. 2 (2000)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The purpose of this experiment was to investigate the influence of soil compaction and water content on root development of 6 month old sengon seedling. The experiment was arranged 3 x 3 factorial experiment within a complete randomized design and 3 replications. The factor number one was soil compaction and factor number two was soil water content. The soil compaction factor consists of 3 levels, which are 1,5 g/cm3 (A1), 1,2 g/cm3 (A2), and 0,9 g/cm3 (A3) respectively, while the soil water content also consists of 3 levels, which are 60,41 % (B1), 49,64% (B2), and 42,86 % (B3) for each level. The parameters were counted which are root number, diameter, root length, biomass, surface area, and root length density. The result was that soil compaction treatment has a significant influence to root number, root length, biomass, surface area, and root length density. On the other hand the soil water content treatment on pF 2,54 until 3,5 and interaction soil compaction and water content have no influence to root number, diameter, root length, biomass, surface area, and root length density. Root number, diameter, length, biomass, surface area and root length density were increased accordingly to the age of the seedling, but the increasing of soil compaction has decreased to the number, length, root length, biomass, surface area and root length density. The secondary root was found more larger than the primary and the tertiary root in term of the root length, surface area and root length density.

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