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Bambang Hero Saharjo
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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 492 Documents
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The Initial Study on Cocomulsa to Push Growth of Jati Seedling in Sukamakmur Village, Bogor Iwan Hilwan; Yuda Purnama
Jurnal Silvikultur Tropika Vol. 3 No. 2 (2012): 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.3.2.%p

Abstract

Teak (Tectona grandis L.f.) is a tree species was almost cultivated for log produced in Java, Indonesia. The purpose this research was to identified the influence of cocomulsa application for growth of teak seedling on the field. Cocomulsa was made from coconut-fiber use latex glue. Cocomulsa can take hold of soil moisture and can defend the weeds movement. Treatments in this research that are using of stake, herbicide, and hoe. The results of this study that interaction from stake and hoe combinations was influenced significantly to growth of plant circumference and high. Based on normality test, that occur disseminating of high and circumference average value to following date normality line, in where average  of high and circumference significant toward growth of teak. The result of calculation from minitab software indicate that the growth ofe teak seedling was not significant. That is because of unless the time from this research, monitoring just done in 2 months. Whereas teak is slow growing species with level of growth is long enough, so the different from that treatments have not seen in clear. Visually, teak plants with cocomulsa was better growth than teak without cocomulsa. And nominally, cocomulsa research toward growth of teak have not seen significant because of unless time for response observation from teak plant. So, in cocomulsa influence research next time that have to use fast growing species and take long time for observation.
Keragaman Genetik Populasi Sengon (Paraserianthes falcataria (L) Nielsen) pada Hutan Rakyat di Jawa Berdasarkan Penanda RAPD Ulfah Juniarti Siregar; Ranny Dwita Olivia
Jurnal Silvikultur Tropika Vol. 3 No. 2 (2012): 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.3.2.%p

Abstract

Sengon is commonly planted in public forest in Java because it included fast growing species (Santoso 1992). Sengon is multifunction such as for its’s leaf, stem, and root system. However, sengon planting with monoculture system causes it is easily attacked by pest and desease such as stem rot pest (Xystrocera festiva), dumping off, and karat puru. So that, it needs high quality sengon which is produced from improvement program. High genetic diversity is needed to reach improvement program. The aim of this research is to know genetic diversity in or between population of sengon on some public forest in Java. Sengon sample that was obtained from 9 populations in Java with amount 25 population sample. Sengon DNA is extracted with CTAB method and Kit GenElute SIGMA. Data analysis is done by POPGENE program and NTSYS. Observed parameter are expected heterozygote (He), polimorfic locus percentage (PLP), observed alel (na), effective alel (ne), and genetic distance. Expected heterozygote value of entire population is 0.2349. It shows that sengon population in Java has high genetic diversity. Generally, genetic variation is in population (82%) while the different between population is only 18%. Genetic distance dendrogram shows that sengon spread in Java is random, because population that is in one same region (West Java) has near distance wih other province.
Organic Leaf Fertilizer Application to Increase Jabon Seedling Growth (Anthocephalus cadamba Roxb. Miq.) Arum Sekar Wulandari; Sri Susanti
Jurnal Silvikultur Tropika Vol. 3 No. 2 (2012): 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.3.2.%p

Abstract

Good seedlings  have good genetic quality and physical appearance such high, diameter, age, fresh leaves, free from pests and diseases. One way to get good quality seedling  throughs fertilizing. Research aims to know response of Jabon seedling growth which  is  given organic  leaf fertilizer. Research is done in the greenhouse by using  complete random design (RAL). Treatment which is given on jabon seedlings was granting organic leaf fertilizer, namely: fertilizer X, super-O, Saputra, and Agrobost. As control, jabon seedlings not given organic leaf fertilizer. The observed variables are the seedlings high, stem diameter, wet weight of shoots and roots, shoots and root dry weight ratio tops, roots, and root length. The results showed from 9 variables observed there are 7 variables that influence on   growth of the  jabon seedling, such as: high, diameter, heavy wet shoots and root dry weight, shoot and  roots. The granting of organic  leaf fertilizer Saputra gives a better growth than other treatments in terms of high growth that is 21.38 cm (nearly 15.34%), diameter is 3.59 mm (increase  36.59%), wet weight of shoots weighing nearly 18.78 g (increase  26.90%), heavy wet roots weighing is 7.74 g (increase 68.82%), dry weight of shoots is 3.13 g (nearly 93.17%) root dry weight, weighing  1.91 g (increase 117.16%). Seedling control and seedling treatment had NPA between 1.54-2.23. Seedlings jabon on all treatments have a long the same root, but it has a number of different roots. Jabon seedlings on all the treatments have a long the same root, but it has a number of different roots. The seeds are sprayed with organic leaf fertilizers have quality index value of  seedings > 0.09, meaning seed jabon can survive if moved to the field.
CO2 Emission Suspection as Green House Gas Impact of Forest and Land Fire on Some Land Cover Type in Center Kalimantan, Year 2000-2009 Bambang Hero Saharjo; Erianto Indra Putra; Umar Atik
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

Land and forest fire can release carbon emissions into the air, for example happened in Central Kalimantan. Especially from land use conversion. Land and forest fire area can be predicted by using hotspot data. Carbon emissions measured by the potential of burnt area on every land covers. This research show that an increase in the number of hotspot from 2000 to 2009. The highest number of hotspot in 2006 reached 22,505 spot. The increasing number of hotspot form 2000 to 2009 is in line with the increasing of burned area on every land covers. Swamp shrub has the highest potential of burned area that reached 113,608.66 ha. Shrub converted to palm oil plantation released the highest carbon emission (801,764 ton). The highest carbondioxide emission on mineral land in Central Kalimantan was released from shrub in 2005 (459,427 ton). While on peat land, the highest carbondioxide emission was released from secondary swamp forest in 2005 (80,851 ton) and primary swamp forest in 2009 (180,531 ton).
The Public Perception of Early Warning System in Forest Fire Prevention Efforts Perum Perhutani KPH Pasuruan East Java Ati Dwi Nurhayati; Haridha Anindita; Handian Purwawangsa
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

Most of forest and land fire in Indonesia caused by human activities therefore it is imfortant to prevent it by conducting researh to identify the factor based on perception level of people. To have know ledge about  forest and  land  fire  factors, can help to determine fire danger rating of one specific area. As a result, we can design effective early warning system in preventing forest & land fire. The study shows that the perception level of  people early warning system is at low degree. Kunjoro Wesi and Wotanmas Jedong Village have 93,30% and Sumberrejo Village has 63,30% of respondent with no knowledge on EWS. While Tambalsari village considered to have middle level of perception, with 50% of respondent have know ledge on EWS. According to Spearmen formal education has a positive correlation with perception level of EWS on all four village. So the level of formal education has a significant contibution for people knowledge.
Species Composition and Stand Structure in Logged Over Area in Forest Concession of PT Salaki Summa Sejahtera, Province of West Sumatra Iwan Hilwan
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

Production forest in Sumatra, Kalimantan, and other islands, are located in lowland tropical rain forest, where in this forest type were dominated by plant species of Dipterocarpaceae. Many tree per hectar was cut to produce major commercial timber.  This timber harvesting activity with selective cutting method (TPTI sylviculture system) can rise impact to species composition and stand structure in logged over area (LOA).  Because that condition, study on species composition and stand structure in primary forest or virgin forest and logged over area is very important to provide data and information for forest management. According vegetation analysis in 1 ha sample plot at virgin forest and logged over forest, species composition and stand structure in logged over area is not significantly different. This condition indicate that implemented of TPTI was not change to species composition and stand structure in logged over area. Species dominant and co-dominant at virgin forest and logged over forest are similar, which are species trees of Shorea (meranti) and Dipterocarpus (keruing). Stand structure at virgin forest and logged over forest are not different, they have J-reverse curve as characteristic of uneven-aged natural forest.
Diversity of Soil Fauna and It’s Role in Litter Decomposition of Oil Palm (Elaeis guineensis Jacq) Noor Farikhah Haneda; Betti Andriany Sirait
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

Indonesia is rich country of biodiversity. Forest is a natural habitat for soil fauna incontinuity it’s life. Information about soil fauna in Indonesia and it’s role in litter decomposition is still limited, so that necessary research of soil fauna diversity and it’s role in decomposition process. This research was done in October 2009 to February 2010. Inventarisation of macro diversity and soil meso fauna with funnel extraction tecnic Berlease. Furthermore, rate calculation of decomposition was done. The result show that species richness value generally between 1.61-3.11, diversity value is generally between 1.49-2.13 while evenness value is generally between 0,45-0,65. Soil fauna diversity of oil palm litters included medium level. Base on  inventarisation result there are 11  ordo in soil fauna of oil palm land, 17 families with 26 morphospecies, while amount of soil fauna that was found  is 237 individuals. After percentage ranking the highest to the smallest, this land type is dominated by Acari, Collembola and Hymenoptera (family Formicidae). Based on the decomposition rate data was obtained, the rate of decomposition for each  harvest time (over 2 weeks) varies in the range 0.80-1.44%/hari. The rate of decomposition of the most quickly is found on the 2nd harvest where the rate of decomposition reach 44%/hari. The results of statistical analysis was obtained stated time with influential positions in the real rate of litter decomposition of oil palm.
Liquid Organic Fertilizer Influence on Jabon (Anthocephalus cadamba miq.) Seedling Growth and Its Resistance to Disease Elis Nina Herliyana; Achmad Achmad; Ardiansyah Putra
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

Wood stock from natural forest tends to decrease and increasing of marginal land, it requires an forest development, HTI (Plantation Forest) or community forest to remain able to fulfill wood commodity demand that is increasing. The tree that is very prospective is Jabon (Anthocephalus cadamba miq.). Jabon include fast growing species and can growth in many soil types. Market prospect of the fertilizer is quite high with easy and was known silviculture technology. Use of un-organic fertilizer tends to damage the soil. It can be on structure or soil fertility. The use of liquid organic fertilizer is a solution. The aim of this research is to examine a liquid organic fertilizer application in development of jabon seedling growth in the nursery and to see the resistance of jabon seedling to disease attacks in nursery. Data collecting is done with Complete Random Design (RAL). Data is analyzed with software SAS 9.1. Liquid organic fertilizer BioHara-Plus with dosage 10 ml/plant was the best than other dosage treatments and manure fertilizer and control.  This value showed high added (13,38 Cm) and diameter added (2,94 Cm). And the use of liquid organic fertilizer with dosage 10 ml/plant was optimal in jabon- seedling’s resistance to disease.
Land Suitability of Pinus merkusii Jungh et de Vriese on Ex-Standing Area of Tectona grandis Linn. F. Omo Rusdiana; Rizky Fitri Amalia
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

West Banyumas Forest Management Unit (WBFMU) is one of the forest management units in working area of Perum Perhutani Unit I Central Java, which has a Corporate Class (CC) of pine trees. Recently, the WBFMU intended to expand the acreage of pine stand in order to increase pine resin production. To achieve this purpose, WBFMU used the former logged over area of teak to be planted by pine. But,  problem arise because the planted pine seedlings showed unappropiate growth. So that, this research was aimed to determine the suitability of pine and limiting factors affecting pine growth in teak stands area at WBFMU. The results show that the suitability of land in the area of the former teak stands in plot 22 B is suitable (S) and plot 25 C is not suitable (N) for the development of P. merkusii according to bonita (site index).
The Effect of Boron and Soaking on Germination of Sandalwood ( Santalum album Linn. ) Seed Supriyanto Supriyanto; Selly Maurina Amin; Benny Subandi
Jurnal Silvikultur Tropika Vol. 3 No. 3 (2012): 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.3.3.%p

Abstract

haracteristic of sandalwood germination is very slow,it is due to  seed coat thickness (seed coat dormancy). Boron is an important nutrient that is required to improve the seed germination and vigor. The aim of this research was to test the effectiveness of boron in various concentrations and period of soaking to speed up the seed germination. The experimental design of research was factorial in Completely Randomized Design (CRD). The results of this research showed that the initial treatment of sandalwood seed in boron soaking on 400 ppm concentration could accelerate the sandalwood seed germination one week earlier with 42% germination percentage while control was 34.6%. The optimal soaking of sandalwood seeds in boron  was 24 hours.

Page 7 of 50 | Total Record : 492

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