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Departemen Silvikultur, Fakultas Kehutanan - Institut Pertanian Bogor Jl. Ulin Kampus IPB Darmaga, Bogor 16680 INDONESIA Telp./Fax.: +62-251-8626806 /+62-251-8626886
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Jurnal Silvikultur Tropika (JST)
Published by Institut Pertanian Bogor
ISSN : 20868227     EISSN : 28073282     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science Social Sciences
JURNAL SILVIKULTUR TROPIKA (JST) atau Journal of Tropical Silviculture adalah jurnal yang terbit tiga kali dalam setahun. JST menerbitkan artikel tentang sains dan teknologi silvikultur yang berhubungan dengan hutan tropika seperti botani, fisiologi, ekologi, tanah, genetika, proteksi, patologi, entomologi, kebakaran, daerah aliran sungai, biodiversitas, bioteknologi, agroforestri, reklamasi dan restorasi. Tulisan-tulisan ilmiah diterbitkan dalam bentuk artikel hasil-hasil penelitian (article), ulas balik (reviews), catatan penelitian (notes), hipotesa (hypothesis), maupun komunikasi (communication) di bidang silvikultur hutan tropika.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 500 Documents
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Diversity of Soil Fauna and Its Role to Decomposition Rate of Hevea barsilliensis Litter at Kebun Percobaan Cibodas – Ciampea Bogor Noor Farikhah Haneda; Widia Asti
Jurnal Silvikultur Tropika Vol. 5 No. 1 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.1.%p

Abstract

Indonesia is one of the tropical countries that has a rich biodiversity. Forest is natural habitat for soil fauna to maintain the continuity of their life. However, there is limited information about soil fauna, particularlly in Indonesia, therefore it needs to do the research about identification of soil fauna and its roles towards the process that occurs in the soil. This research was conducted at Kebun Percobaan Cibodas - Ciampea Bogor and Forest Entomology Laboratory of the Faculty of Forestry IPB. The steps undertaken in this study were identify of soil fauna and analysed decomposition rate. Results showed that soil fauna found in research sites for 12 weeks observation period consists of: a phylum (Arthropoda), three classes (Hexapoda, Arachnida and Chilopoda), 18 orders (Acari, Blattaria, Coleoptera, Collembolla, Diplura, Diptera, Dermaptera, Geophilomorpha, Hymenoptera, Isoptera, Lithobiomorpha, Opiliones, Psocoptera, Siphonaptera, Scolopendromorpha, Scorpionida, Solifugae, dan Thysanoptera), 34 families and 42 genus. Based on plot location, average litter decomposition rate per two-week were 35.07% (edge), 33.02% (middle), and 32.07% (interior). The highest decomposition rate occurred in early weeks of decomposition time which happen on the second week. Relationship between total soil fauna biodiversity with decomposition rate is straight line. The corelation between rate of litter decomposition with litter weight towards decomposition time is strongly negative (Pearson correlation = - 0.846). Plot location and harvesting time significantly affected towards weight litter decrease and rate of decomposition.
Dormancy Broken of Bintaro Seed (Cerbera manghas Linn.) Edje Djamhuri; Yuli Hasmaliah
Jurnal Silvikultur Tropika Vol. 5 No. 1 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.1.%p

Abstract

Germination process of bintaro seed (Cerbera manghas Linn.) need a long time due to a mecanical dormancy. Initial treatment necessary to be done to broking a seed dormancy by soaking the fruit or seed in water. The aim of this study is to analyze effect of stripping fruit skin and soaking time of fruit on germination of bintaro seed., and to analyze effect of soaking time on germination of bintaro seed. The result shows that stripping of fruit skin and interaction stripping skin with soaking time is not significantly affected on all parameter of seed germination, while soaking time of bintaro fruit is significantly affected on germination capability and germination value, also significantly affected on germination speed and growth speed. Soaking time of bintaro fruit that is optimum in broaking seed dormancy is 3 weeks.Soaking time is significantly affected on germination capability, germination speed, and germination value. Soaking time of bintaro seed that is optimum in broaking seed dormancy is 6 hours. Germination bintaro seed can be done by firstly soaking a fruit in water for 3 weeks, or by firstly soaking the seed in water for 6 hours.
The Species Composition and Structure of Vegetation in Karst Area Gunung Cibodas, Ciampea, Bogor Peni Widiyanti; Cecep Kusmana
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Karst area is carbonated rock area that showing karst morphology, with high valued ecosystem of flora and fauna. One of the karst areas in West Java that has quite alarming condition is Gunung Cibodas, Ciampea subdistrict, Bogor regency. The research was aimed to analyze the spesies composition and structure of vegetation in the karst area of Gunung Cibodas. Sampling plot was set up using systematic sampling with random start method. Vegetation plots were laid on each slope and the mouth of cave.Our obtained results showed that 30 species of seedling, 32 species of sapling, 2 species of pole, 6 species of tree and 92 species of understorey in the karst of Gunung Cibodas, Ciampea, Bogor.On every hill slope and the mouth of cave is dominated by pioneer species such as Leucaena leucocephala, Calliandra calothyrsus and Macaranga peltata which show the process of secondary succession,moreover the understorey is dominated by the species of Invasive Alien Species (IAS). Stand structure showing inverted J-shaped curve is only found on the northern slopes. Generally canopy stratification in this karst area consists of three strata, namely stratum C, D and E with the clumping distribution pattern for dominant tree species at both mouth the cave and the slopes of mountain.
Identifcation of Useful Chemical Content of Red and White Jabon Leaf (Anthocephalus spp.) Martini Wali; Noor Farikhah Haneda; Nina Maryana
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Jabon (Anthocephalus spp.) is a tree that has multiple functions. In addition to timber, jabon also useful as medicinalplants and fodder. This study aims to determine the primary compound content and the content of secondary metaboliccompounds in the leaves of red and white jabon. Test methods used were the proximate test for identification of primarycompounds and phytochemicals testing for the identification of secondary metabolic compounds from the jabon leaves. Ingeneral, the proximate test results show that white jabon leaves contain moisture, crude protein, crude fiber, ADF (AcidDetergent Fiber) and lignin in a greater percentage than that of red jabon 96.35%, 16.44%, 14.49%, 38.72%, 24.21%,respectively. Red jabon leaves contain more crude fat and cellulose, i. e. 3.15% and 10.13 %, respectively, while othercomponent such as ash content, NFE (Nitrogen Free Extract), Ca, P, N and silica with values 6.72%, 56.29%, 1.47 %,0.25%, 2.63%, 0.04% on white jabon, and 6.95%, 56.16%, 1.84%, 0.32%, 2.36%, 0.07% on red jabon. The content ofsalt (NaCl) in the same percentage is 0.03%. The test results showed that the phytochemical compounds identified arequinone compounds and steroids with higher concentration on leaves of red jabon than white jabon leaves. Based on thecolor type of quinone compounds were identified class of anthraquinone compounds. The results showed that the leavesof red jabon can be used as medicinal plants because they contain substantial amount of secondary metaboliccompounds. White jabon can be used as an alternative feed source for livestock because it contains more nutritioncompounds.
The Physiological Response and Production of Soybeans (Glycine max (L.) Merrill) Tolerant Shading Based on Agroforestry of Sengon (Paraserianthes falcataria (L.) Nielsen) Adisti Permatasari Putri Hartoyo; Nurheni Wijayanto; Sri Wilarso Budi
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Soybeans demands in Indonesia is higher than soybeans supply. One of the effort to increase soybeans supply is by agroforestry of soybeans and sengon. The aims of this research were to analyze the physiological response and production of soybeans tolerant shading, as well as the influence of soybeans planting on the growth of sengon. Research was conducted by split plot design with 5 repetitions and 2 factors. The main factor was shading and second factor was varieties of soybeans. The results showed the chlorophyll a, b, carotene and total chlorophyll on N1 (with shading) treatment were higher than soybeans on N0 (without shading). The N, P, and K nutrients absorbtion on N0 treatment were higher than soybeans on N1 treatment. Pangrango variety on N0 treatment was better than the others varieties in both of shading treatment. The production of soybeans tolerant shading in sengon (4 year age) was very low than soybeans without shading. The differences of cropping pattern in sengon did not give significant effect on the growth of sengon diameter. Sengon horizontal roots in agroforestry were more than monoculture. The depth of the roots that <20 cm in agroforestry were more than monoculture. That were might be caused by the differences of nutrients element existence in each area.
Study Results of Research about the Growth Rate of Tree Species in Post-Mining Area Ingge Dhyan Cakyayanti; Yadi Setiadi
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Mining would give direct negative impact on environmental condition, there are opened soil surface that willincrease surface run-off; change on forest ecosystem and forest ecology stability. Objective on post mining arearehabilitation is to construct post mining area fit in the land purpose. Collection results of researches in growth of manytrees species is important to know the development of technique and detect the success rate with its factors. The objectiveof this research to evaluate result on researches collected.This research was carried out by collect and analyze the resultof growth on many tree species in post mining area on Laboratorium Bioteknologi Hutan dan Lingkungan ; dan PusatPenelitian Sumberdaya Hayati dan Bioteknologi (PPSHB) library, University library and Department ofForestResources ConservationandEcotourism library at Bogor Agricultural University.Many research resulted there wereseveral tree species which used in rehabilitation post mining area were akasia, lamtoro, gamal, sengon, jarak pagar,pulai, gaharu, nyatoh, kapur naga, mindi, melochia, cemara gunung, nyamplung, ubak, rengkat, leban, and waru . Overtailing in post tin mining area akasia, lamtoro, gamal and sengon well grown with Mycofer and compost treatmentbeside that jarak pagar seedlings well grown in mixed ameliorant and anorganic fertilizer tratment. Over batu baratailing, sludge acquition increasing growth of mangium and acacia. Topsoil acquition increasing seedlings growth ofpulai species. FMA inoculation and soil amandement treatments increasing grown of agarwood species. Soilamandement treatment given positive effect on seedlings of nyatoh and kapur naga species. Over post gold mining area,combination of active compost and FMA helped mindi species to grown up. Over post nickel mining area, melochiaspecies well grown in fertilizer treatments, beside that grass controlling system helped cemara gunung grown well. Overpost tin mining area nyamplung, ubak, rengkat, laban and waru grown up with water splash treatment.
Effect of Cutting Material and IBA (Indole butiric Acid) Hormone on Growth of Red Jabon Cutting Supriyanto .; Ade Saepuloh
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Anthocephalus macrophyllus (jabon merah) merupakan jenis pohon yang memiliki pertumbuhan relatif cepat danbanyak manfaat, antara lain untuk reforestasi, program CSR (Corporate Social Responsibility) perusahaan, hutanrakyat, dan bahan baku industri. Jabon merah memiliki benih berukuran sangat kecil, bersifat semi rekalsitran, masaberbuah yang pendek serta penyebaran alaminya yang masih terpusat di daerah (Indonesia Timur) maka menyebabkanproduksi benih atau bibit yang berkualitas masih terbatas. Untuk itu dibutuhkan suatu teknologi pembibitan untukmendapatkan bibit A. macrophyllus berkualitas dan dalam jumlah yang memadai untuk menunjang keberhasilanprogram reforestrasi. Pembangunan kebun pangkas dan pembiakan vegetatif dengan cara stek merupakan salah satualternatif untuk pengadaan bibit jabon merah. Tujuan penelitian ini adalah (1) Mendapatkan teknologi penyiapan bahanstek; (2) Menguji pengaruh bahan stek dan hormon IBA terhadap keberhasilan stek jabon merah. Kebun pangkas yangdibangun berasal dari bibit jabon merah berumur 1 tahun dengan perlakuan pelengkungan batang dan dan pemberianNPK pada kebun pangkas berasal dari bibit jabon merah yang berumur 4 bulan, dan untuk pembuatan stekmenggunakan stek pucuk dan batang, sedangkan hormon yang digunakan adalah IBA dengan dosis 0 ppm, 500 ppm,1000 ppm, dan 1500 ppm. Rancangan yang digunakan adalah Rancangan Acak Kelompok satu faktor untuk kebunpangkas dan dua faktor untuk stek. Hasil penelitian menunjukkan bahwa teknik pelengkungan batang dapatmeningkatkan produksi tunas pada minggu ke 1 hingga minggu ke 10 pada kebun pangkas umur 1 tahun, sedangkanpada kebun pangkas 4 bulan, pemberian NPK menurukan produksi tunas pada minggu ke 2 dan ke 4. Bahan stek batangberpengaruh nyata terhadap persentase stek hidup, persentase stek berakar dan jumlah tunas yang dihasilkan. Bahanstek pucuk kurang memuaskan untuk menghasilkan stek karena mudah layu dan mudah busuk.
Ratio of Hotspot Source as an Indicator of Forest and Peat Fire and Its Correlation with Rainfall in Sepahat Village, Bengkalis District, Riau Lailan Syaufina; Rinenggo Siwi; Ati Dwi Nurhayati
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Riau is one of the areas in Indonesia which annually contributes to the regional haze problem, not only in Indonesia but also to neighboring countries, one of which comes from Sepahat village, Bukit Batu subdistrict, Bengkalis district, Province of Riau in 2009-2010 contributed the big haze until neighboring countries. Information about data hotspot may be one source of early detection information of forest fires and land. If the data hotspots combined with rainfall data, it will discover the model calculations of spatial correlation between the amounts of rainfall with the amountsof hotspot detection in Sepahat village. This study is aimed to compare hotspot of the NOAA-18 satellite with hotspot data of the TERRA-AQUA satellite and examine the correlation between rainfall and hotspot in 2008-2010. This study uses hotspot secondary data by NOAA satellite from the Ministry of Forestry of Indonesia, hotspot secondary data byAQUA TERRA satellite from Center for Applied Biodiversity (CABS), and rainfall data from the Department of Agriculture and Animal Husbandry of Bengkalis. The result of this study indicates that the number of hotspot detection captured by TERRA-AQUA satellite is higher than that of the NOAA satellite. Average hotspot detection from NOAA satellite in 2008-2010 was 11 hotspots, while average hotspot detection from TERRAAQUA satellite in 2008-2010 was 119 hotspots. While average rainfall in Bukit Batu sub-district, in 2008-2010 was 1617.8 mm/year. The result of the correlation between the amount of rainfall and hotspot detection from NOAA satellite is 0.893, while the result of the correlation between the amount of rainfall and hotspot detection from TERRA-AQUA satellite is 0.5888. Best Equation Model of rainfall with hotspot detection in Sepahat village, Bangkalis is y = 146.5 - 17.49x + 8.52x2 - 0.5444x3 whereby y is the number of hotspots of NOAA satellite and x is rainfall.
Influence of NPK and Compost Fertilizer Dose Toward the Growth of Red Canna (Canna edulis Ker.) Under Sengon (Falcataria moluccana Miq.) Stand Arry Resti Rahayu; Nurheni Wijayanto
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

In Indonesia, natural resources have not been maximally utilized yet, so it brought some problems such as food crisis and restricting the conversion of forest-land into agricultural-land. The presence of agroforestry that developing right now could be one of the solution in order to fix the restricting of forest-land conversion problem. Agroforestry of red canna and sengon could be one of the solution. The aim of this study is to determines the influence of NPK and compost fertilizer dose on the growth of canna under sengon stand. NPK fertilizer dose used in this study are 0 g, 1.5 g, 3 g, and 6 g, while the compost fertilizer dose used are 0 g, 50 g, 100 g, 200 g. Experimental design used in this study are complete random sampling (RAL). The result of this study shows that NPK fertilizer dose affected toward the parameter of height, while the dose of compost did not affected the parameters.
Effect of Policy on Effort of Forest and Land Fire Control on Decreasing Green House Gass Emission Bambang Hero Saharjo; Alex Yungan
Jurnal Silvikultur Tropika Vol. 5 No. 2 (2014): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.5.2.%p

Abstract

Peningkatan konsentrasi gas rumah kaca menimbulkan pemanasan global dan perubahan iklim, untuk itu perlu dikurangi. Kebijakan pengendalian kebakaran hutan dan lahan di Indonesia, ternyata belum mampu mempengaruhi penurunan emisi gas rumah kaca, sehingga kondisi tersebut akan berdampak terhadap pemanasan global dan perubahan iklim. Hal tersebut tentunya menjadi pertanyaan apakah keputusan pemerintah terkait hal tersebut telah berjalan efektif atau justru sebaliknya. Tujuan dari penelitian ini yaitu 1) untuk mengkaji keberadaan keputusan pemerintah dalam menurunkan Emisi Gas Rumah Kaca (EGRK) pada periode 2005-2012 yang disertai kebijakan pengendalian kebakaran hutan dan lahan; 2) Komitmen pemerintah dalam menurunkan Emisi Gas Rumah Kaca (EGRK) akibat kebakaran hutan dan lahan. Data yang digunakan dalam penelitian ini adalah data primer dan data sekunder. Data primer diperoleh melalui wawancara, sedangkan data sekunder berupa hotspot, laporan pemerintah dan peraturan perundang-undangan terkait kebakaran hutan dan lahan diperoleh dari Kementerian Kehutanan dan Kementerian Lingkungan Hidup. Data sekunder dianalisis menggunakan analisis deskriptif. Selain itu, uji korelasi dilakukan untuk mengetahui hubungan antara hotspot dan luas kebakaran hutan. Korelasi antara hotspot dengan luas kebakaran hutan di Indonesia tahun 2010-2012 sebesar 51,03%, sementara di 11 Provinsi Indonesia sebesar 61.25%. Hal ini menunjukan korelasi yang positif antara hotspot dengan luas kebakaran hutan. Hasil analisis data sekunder menunjukkan bahwa komitmen pemerintah dalam menurunkan emisi gas rumah kaca, terutama akibat kebakaran hutan, adalah kontraproduktif. Tren hotspot di Indonesia terus mengalami peningkatan dari tahun 2010-2012. Hal ini berarti regulasi/kebijakan pemerintah bersifat tidak (mampu) menghasilkan dalam implementasinya. Informasi ini diharapkan mampu memberikan solusi penyelesaian masalah pengendalian kebakaran hutan dan lahan terutama dalam menurunkan emisi gas rumah kaca melalui kebijakan pemerintah Indonesia.

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