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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 537 Documents
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Mengukur Aliran Informasi dan Tata Kelola Hutan yang Baik: Studi Kasus Gerakan Nasional Rebosisasi dan Rehabilitasi Lahan (Gerhan) di Indonesia Herry Purnomo
Jurnal Manajemen Hutan Tropika Vol. 11 No. 2 (2005)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

It is becoming increasingly clear that sustainable forest management is contingent on good forest governance, by which we mean the rules under which power is exercised for the management  of forest resources, and which determine the nature of relationships between the state and its citizens. These relationships can be characterized as social networks, with information forming the life-blood mediating the development of these networks and the social capital that resides in them. Information flow is defined here narrowly as the movement of information ‘objects’ from a point of origin to a ‘target’ user over time. This research is a case-study of the flow of information among stakeholders and the influence of these flows on the power of those stakeholders within the National Forest and Land Rehabilitation Program (GERHAN) in Indonesia. Information imbalances within the GERHAN program have tended, we believe, to encourage rent-seeking and free-riding behaviors, thus reducing the effectiveness of the program. We show how addressing these imbalances and improving flows of information can achieve good governance.
Persepsi Masyarakat terhadap Kinerja Pengelolaan Daerah Aliran Sungai Ciliwung: (Studi Kasus Kelurahan Cipinang Muara dan Kelurahan Bukit Duri) Kresno Agus Hendarto
Jurnal Manajemen Hutan Tropika Vol. 11 No. 2 (2005)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

This study describes the use of correspondence analysis for examining the relationship between perception of the community, residing in Cipinang Muara village and Bukit Duri village, and the performance of Ciliwung watershed management. The correspondence analysis provided a particular method that was able to describe the data in an Euclidean space such that the results could be visually examined for structure of categorical variables included in the tables. The study found that perception of the community residing in Cipinang Muara village significantly differed from that in Bukit Duri village. The attributes that might influence such differences were linked to the institution achievement, and further could be divided into two groups. The first group includes flood, landslide, soil fertility, extra/ additional incomes, and transparent activity; while the second includes drought, spring facility, road facilities and aids, when disaster occurred. The combination of both perception of the community and the performance of Ciliwung watershed management suggests that community in Bukit Duri village had a bad perception on attributes drought, spring facility, road facilities, and aids when disaster occurred. Meanwhile, there was a bad perception for the community in Cipinang Muara village toward attributes flood, landslide, soil fertility, extra/ additional incomes, and transparent activity.
Integration of Spectral and Textural Features from Ikonos Image to Classify Vegetation Cover in Mountainous Area Ketut Wikantika
Jurnal Manajemen Hutan Tropika Vol. 12 No. 1 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Studi ini mengevaluasi penggunaan fitur spektral dan tekstur secara terintegrasi yang didapat dari citra IKONOS untuk mengindentifikasi tipe-tipe tutupan lahan pertanian di daerahpegunungan. Studi meliputi pra pengolahan citra, pengembangan metode kuantisasi citra, penghitungan nilai tekstur, pembuatan dataset dan penilaian akurasi. Pra pengolahan citra berfokus pada registrasi citra dan normalisasi topografis. Dalam studi ini dikembangkan dua metodekuantisasi citra yaitu segmentasi citra dan filter rata-rata. Segmentasi citra mengklasifikasi citra kedalam beberapa segmentasi berdasarkan determinasi jumlah total piksel setiap kelas, sedangkan filter rata-rata mengelompokkan citra berdasarkan rata-rata nilai angka dijital dalam ukuranwindow tertentu. Empat ukuran tekstur yaitu inverse difference moment, contrast, entropy dan energy dihitung dengan grey level co-occurrence matrix (GLCM). Hasil studi menunjukkankombinasi aspek spektral dan tekstur meningkatkan akurasi klasifikasi secara signifikan dibandingkan klasifikasi hanya menggunakan fitur spektral saja. Segmentasi citra dan filter rata-rata dapat memberikan bentuk-bentuk spasial tipe tutupan lahan pertanian yang lebih efektif dibanding menggunakan citra dengan derajat keabuan 256. Ketelitian keseluruhan meningkat 11,33% ketika menggunakan integrasi spektral dan fitur tekstur inverse difference moment (5x5) danenergy (9x9).
Pengembalian Ekonomi dalam Pengelolaan Hutan Alam Produksi: Suatu Pendekatan Dinamika Sistem Mohamad Subhan Labetubun; Endang Suhendang; Dudung Darusman
Jurnal Manajemen Hutan Tropika Vol. 11 No. 2 (2005)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

This research was aimed at obtaining economic returns of uneven-aged forest management based on system dynamic model approach. Logged-over natural forest in the concession area of PT. Telagabakti Persada, North Moluccas was selected for study. Stand structure dynamic model was estimated from re-measured permanent sample plot. It consists of ingrowth, upgrowth and mortality functions. The model was constructed based on species group (Dipterocarpaceae, Non Dipterocarpaceae and Non Commercial). Then, prediction data compared with the actual data. The economic criteria were the land expectations value, net present value, benefit cost ratio and annual equivalent value of net present value. The cutting simulation result shows that an increase of cutting intensity had lengthened cutting cycle. Increase of cutting cycle had increased land expectation value. Increase of land expectation value had decreased tree diversity. Increase of royalty and interest rate had increased land expectation value. Changes of royalty and interest rate were not affected on optimum cutting alternative.Key words:  
Penggunaan Teknologi Penginderaan Jauh Satelit dan SIG untuk Menentukan Luas Hutan Kota R Assyfa El Lestari; I Nengah Surati Jaya
Jurnal Manajemen Hutan Tropika Vol. 11 No. 2 (2005)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

This paper describes the use of satellite Remote Sensing Technology as well as Geographic Information System on determining the minimum coverage of urban forest. The study used the Oxygen demand approach of human, lifestock, industry as well as transpartotion vehicles for estimating the need of forest coverage. The existing urban forest coverage were derived from IKONOS and SPOT Satellite Imageries.The study found that the increase of the need for urban forest was dominantly affected by the significant increase of transportation verticles during the last 5 years. If the rates of the increase of population, lifestock as well as transportation vehicles does not change, the urban forest in Bogor city is only adequate up to the year 2015. This study recomends that an action should be made to anticipate the scarceness of clean air in Bogor City. The study also found that the central Bogor District has the lowest extent of urban forest.Key word:
Predicting Spatial Distribution of Stand Volume Using Geostatistics Tatang Tiryana
Jurnal Manajemen Hutan Tropika Vol. 11 No. 2 (2005)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Pendugaan volume tegakan hutan alam biasanya dilakukan dengan metode penarikan contoh (sampling) non-spasial. Dalam penelitian ini, dikembangkan metode pendugaan spasial dengan pendekatan geostatistika yang diterapkan untuk menduga dan memetakan sebaran volume tegakan di areal HPH Labanan, Kalimantan Timur. Pendugaan dilakukan dengan menggunakan metode kriging berdasarkan model spherical variogram dan data dari 1090 plot contoh. Keakuratan hasil pendugaan diuji melalui validasi dengan menggunakan 272 plot contoh yang berbeda. Hasil analisis menunjukkan bahwa volume tegakan memiliki korelasi spasial dengan keragaman yang cukup besar, namun tidak dijumpai adanya kecenderungan arah sebarannya. Selain itu, dapat dibuktikan bahwa pendugaan dengan metode kriging dapat memberikan nilai dugaan volume tegakan dengan akurasi yang cukup tinggi. Hal ini menunjukkan bahwa pendekatan geostatistika dapat digunakan sebagai metode alternatif dalam pendugaan dan pemetaan sebaran volume tegakan.
Kajian Penggunaan Paclobutrazol terhadap Pertumbuhan Semai Agathis Loranthifolia (The Study of paclobutrazol on the growth of Agathis loranthifolia seedlings) Ombo Satjapradja; L Setyaningsih; Dida Syamsuwida; Ateng Rahmat
Jurnal Manajemen Hutan Tropika Vol. 12 No. 1 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Paclobutrazol is one of hormone which able to inhibit the growth of tree seedling. This kind of hormone is usually used extensively in horticulture in stimulating flowering and enhancing fruiting. The objective of the research was to know the effect of paclobutrazol on the growth of Agathis loranthifolia seedlings during storage under different condition, in order to support seedling supply programs for forest establishment and rehabilitation. There were two factors of the trial i.e.) growth inhibitors (paclobutrazol, NaCl and aquadest) and 2) storage conditions (growth house, heavy shading and light shading). A complete randomized design with two factors and 3replication were used in this trial. The result of the research showed that the treatment of paclobutrazol to the seedlings stored at a green house gave an effect to the height and diameter growth of Agathis loranthifolia seedlings which were lower than those treated by NaCl and aquades. While paclobutrazol treated seedlings stored under light shading, gave higher value of seedling height and diameter than those stored under green house condition and heavy shading. The highest value of seedling survival Agathis loranthifolia achieved by paclobutrazol treated seedlings which were stored at the green house and under light shading. Field testing after 3 months plantation showed that paclobutrazol – treated seedlings and seedlings, stored under light shading gave a highest value of seedling survival (100%) and seedling quality index (0,095).Keywords : paclobutarazol hormone, seedling storage technique, recalcitrant seed, seedling survival,  seedling quality index.
Laju Dekomposisi dan Pelepasan Hara dari Serasah pada Dua Sub-Tipe Hutan Rawa Gambut di Kalimantan Tengah Sulistiyanto Y; Rieley JO; Limin SH
Jurnal Manajemen Hutan Tropika Vol. 11 No. 2 (2005)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

Decomposition processes of litter in peat swamp forest in the upper catchment of the Sebangau River in Central Kalimantan, Indonesia were studied. Litterbags were sampled every six months from November 2000 to May 2002 and analyzed for total content of N, P, K, dan Ca. Litterbags was collected in three permanent study plots, 50 x 50 m, which were established in mixed swamp forest (MSF) and low pole forest (LPF). In each plot, 25 litterbags (25 sub-plot) were placed in forest floor. Every six months 12 litterbag samples were harvested from the study plots (MSF and LPF) and these were air dried, oven dried and weighed. Six litterbag samples were taken from hollows and other six samples from hummocks. Weight loss in both sub-tipe of forest, mixed swamp forest and low pole forest was fast in the first six months. Potassium was the fastest nutrient loss in the mixed swamp forest and low pole forest. Decomposition rate (k) in the mixed swamp forest and low pole forest are 0.396 yr -1 and 0.285 yr -1 respectively.
Metode Survei Kayu Rakyat Berdasarkan Karakteristik Sosial Ekonomi dan Biofisik Kawasan: Studi Kasus di Kabupaten Bogor (Survey Method for Timber Stand of Private Forest based on Socio-economics and Biophysical Characteristics: a case study in Bogor Dis Tien Lastini; Endang Suhendang; I Nengah Surati Jaya
Jurnal Manajemen Hutan Tropika Vol. 12 No. 1 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

The objective of this research is to determine the appropriate survey method for timber stand of private forest, based on its important characteristics. There were three methods used in this research, namely, method according to basic data i.e social-economics and biophysic data; method based on image, approached by vegetation transformacy using NDVI; and method based on integration of basic data and image. The result showed that basic data method is the best method for stratification of the village (desa), as a primary sampling unit of the private forest population (district). The second ones is basic data and image-integration method and last ones is image method.Keywords : basic data, coefficient of variation, image, NDVI, private forest, survey method, timber.
Optimalisasi Pemanfaatan Lahan Kehutanan dalam Rangka Peningkatan Kualitas Lingkungan dan Kesejahteraan Sosial Ekonomi Masyarakat Desa Sekitar Hutan: Studi Kasus di Kabupaten Sumedang Rajati, Tati; Kusmana, Cecep; Darusman, Dudung; Saefuddin, Asep
Jurnal Manajemen Hutan Tropika Vol. 12 No. 1 (2006)
Publisher : Institut Pertanian Bogor (IPB University)

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Abstract

To reserve forest land and improve people's income, Perum Perhutani Sumedang regency, together with the people surrounding the forest, makes a program to utilize the forest by using an agroforestry system. For that reason, the researcher is interested in doing research about the type of crops that can optimize forest land. The objective of the research is to analyze the utilization of forest land optimally and improve the social welfare of the people surrounding the forest in Cipadayungan, Sumedang. The result of the research indicates that the degree of erosion in the research field at the slopes of (0-<15)% and (15-<30)% is still under tolerated erosion, but the slope of .30% is beyond tolerated erosion. Types of crops that can be used to utilize the land without clearing grass growing on the forest floor are vanilla and coffee. Those plants are productive crops, while grass can protect the land against erosion.

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