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Journal : Jurnal Sylva Lestari

Manajemen Penangkaran Lebah Madu (Apis Cerana Fabr.) di Desa Buana Sakti Kecamatan Batanghari Kabupaten Lampung Timur Apriyanita Pitri Ningrum; Rudi Hilmanto; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 1 No. 1 (2013): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.515 KB) | DOI: 10.23960/jsl1123-28

Abstract

Honey forest are one of beekeeping product that can developed by honey bees breeding method.In order to remain sustainable production of honey breeding, agood breeding management is significantly needed. The purpose of this research was to identify and evaluate the breeding management of Apis cerana Fabr. honey bee based onthe indicator and parameter assessment of technical requirement planning, the technique, the implementation, and the products of breeding. This research was conducted from February 2012 until April 2012 in the Buana Sakti Village, District of Batanghari, East Lampung. The method used in this research is field observations and questionnairy interviews. The analysis applied in this reseacrh is quantitative and qualitative method, comparing the data collection from the field to the criteria and indicator of breeding management assessment. The results of this research showed that the aspect of technical requirement planning and the breeding products are considered good, it is because it has accomplished the requirement. While the aspect of breeding technique and implementation are considered not good, it is caused by the limited competence of bee farmer and the breeding methods. Overally, the breeding management of Apis cerana Fabr. honey bee in Buana Sakti village for all aspects is considered good. The breeding management of Apis cerana Fabr. honey bee in Buana Sakti village needs to be well improved, particularly in term of technique and implemetation of breeding to obtain the maximum quality of honey bee breeding. Keywords : Apis cerana Fabr., bee breeding management, bee conservation
Kontribusi Hutan Rakyat terhadap Pendapatan Petani di Desa Buana Sakti Kecamatan Batanghari Kabupaten Lampung Timur Lina Nur Aminah; Rommy Qurniati; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 1 No. 1 (2013): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (244.569 KB) | DOI: 10.23960/jsl1147-54

Abstract

This study objective is to determine the contribution of private forest management on farmers total income. This study was conducted in March-May 2012 in the Buana Sakti Village, Sub District of Batanghari, District of Lampung Timur. The number of respondent of this study were 40 private forest farmers. Data were collected by direct field observation, interview, and literature review. Data were then analyzed using qualitative and quantitative analysis methods. The results revealed that the average area of private forest owned by farmers were 0,98 ha. The private forest were managed by monoculture, polyculture and agroforestry system. In monoculture system the farmers planted Acacia mangium, in polyculture system the farmers planted Acacia mangium and Hevea brasiliensis while in agroforesty system the farmers combine their land with Acacia mangium, with honey enterprises. The results showed that private forest contribute Rp 17.619.649 every year (70,54%) of the total farmers household income of Rp 24.984.774 every year. Keywords: contributions, farmers income, private forest
Analisis Finansial Pola Tanam Agroforestri di Desa Pesawaran Indah Kecamatan Padang Cermin Kabupaten Pesawaran Provinsi Lampung Nurpine Nadeak; Rommy Qurniati; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 1 No. 1 (2013): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (489.221 KB) | DOI: 10.23960/jsl1165-74

Abstract

Agroforestry in Indonesian language simply means as planting trees on agricultural land. Land's management with sustainable agroforestry systems expected to be able improve field productivity. It has needed to do financial analysis for agroforestry cropping patterns. It based on some of dominant plant species in agroforestry cropping patterns. This study conducted in the Pesawaran Indah Village of Padang Cermin Subdistrict on Pesawaran District in March-May 2012. The study aims to determine a profitable agroforestry cropping patterns based on financial analysis. Sampling used by purposive sampling technique. Financial analysis of agroforestry cropping pattern used the NPV, BCR and IRR with feasibility age of 20 years and an interest rate of 12%.The results showed that there are 9 agroforestry cropping patterns applied. Analysis showed that agroforestry cropping patterns is financially viable to be applied. Among 9 cropping pattern, pattern VI which is combination of Cocoa, Coconut and Banana has the highest profit with NPV is Rp 71.392.802,34,-, BCR of 7,39 and an IRR of 96%. Key words : agroforestry, financial analysis, pattern
Potensi Kayu Rakyat dan Strategi Pengembangannya (Studi Kasus) di Hutan Rakyat Desa Buana Sakti Kecamatan Batanghari Kabupaten Lampung Timur Tri Putri Siadari; Rudi Hilmanto; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 1 No. 1 (2013): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (164.103 KB) | DOI: 10.23960/jsl1175-84

Abstract

This study aims to determine the potential of timber from private forest and to analyze the strategy to develop the management of private forest in Buana Sakti.This research held at March-May 2012. Tree data and timber potency were collected by using measurement plot of 20x20m with sampling intensity of 1%.The datas were then analyzed quantitatively. SWOT analysis is performed to determine the proper development strategy of private forest in Buana Sakti. The results show that the potential of timber in private forest of Buana Sakti is 111,79 m3 which comprise of timber teak, rubber, randu, jengkol, sengon, sonokeling, acacia, waru, clove, melinjo with the potential revenue of Rp. 159.959.000/ha. The calculations show that the INP most dominant plant species are acacia that is equal to 88,18% with 51,88% of total KR, FR 28,95%, 7,35% DR. The development strategy of private forest that needed to be applied are selecting the best quality and provide education to farmers about the important of forest. Keywords: forestry, strategy development, wood forest products
Physical and Mechanical Properties of Oriented Strand Board from Three Species of Plantation Forests at Various Resin Contents Muhammad Iqbal Adi Baskara; Doni Hapsoro; Muhammad Iqbal Maulana; Marwanto; Denni Prasetia; Wahyu Hidayat; Muhammad Adly Rahandi Lubis; Nam Hun Kim; Fauzi Febrianto
Jurnal Sylva Lestari Vol. 10 No. 1 (2022): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v10i1.519

Abstract

The objective of this study was to determine the physical and mechanical properties of oriented strand board (OSB) from three wood species of plantation forests, i.e., Afrika (Maesopsis eminii), mangium (Acacia mangium), and sengon (Paraserianthes falcataria) at various resin contents. OSB was made with a shelling ratio (face:core:back) of 1:2:1 and a target density of 0.6 g/cm3. Methylene diphenyl di-isocyanate (MDI) adhesive was used with 3%, 5%, and 7% resin contents. The physical and mechanical properties were evaluated based on JIS A 5908:2003 standard and the values were compared with CSA 0437.0 (Grade O-1) standard. The results show that the physical and mechanical properties of the OSB were improved as the resin content increased for all wood species. OSB prepared from Afrika and mangium wood strands with 7% resin content showed better physical and mechanical properties than the other OSBs. Thickness swelling of OSB prepared from three wood species had met the CSA O437.0 (Grade O-1) standard. All OSBs produced in this experiment met the standard for MOR parallel and perpendicular to the grain. OSB from three wood species with a 5% and 7% resin content met the standard for MOE perpendicular to the grain. Only mangium OSB with a resin content of 7% met the standards for MOE parallel to the grain. Afrika OSB with 5% and 7% resin content, mangium OSB with 5% resin content, and sengon OSB with 3% and 7% resin content met the standard for the internal bond. Keywords: Acacia mangium, Maesopsis eminii, Methylene diphenyl di-isocyanate, Oriented strand board, Paraserianthes falcataria
Physical and Mechanical Properties of Bamboo Oriented Strand Board Under Various Post-Thermal Treatment Duration Silvia Uthari Nuzaverra Mayang Mangurai; Sena Maulana; Rio Ardiansyah Murda; Soleh Muhamad; Wahyu Hidayat; Yazid Bindar
Jurnal Sylva Lestari Vol. 10 No. 3 (2022): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v10i3.594

Abstract

Post-treatment of bamboo-oriented strand board (BOSB) through thermal modification can be an alternative to improve BOSB quality. This study aimed to analyze the effect of post-thermal treatment duration on the physical and mechanical properties of BOSB. Three-layers BOSB with a target density of 0.7 g/cm3 was made with the core layer perpendicular to the surface and bonded with 8% phenol-formaldehyde resin. The BOSB produced was then thermally-modified at 160°C for 1, 2, and 3 h. The physical and mechanical properties of BOSB were determined based on JIS A 5908-2003 standard. The results showed that the physical properties of the thermally-modified BOSB increased while the mechanical properties decreased compared to the untreated BOSB. The moisture content (MC), water absorption (WA), and thickness swelling (TS) of BOSB decreased with the increase in post-thermal treatment duration. The decrease in MC, WA, and TS of the thermally-modified BOSB reached 38.60%, 11.92%, and 33.26%, respectively. In addition, the decrease in modulus of elasticity (MOE), modulus of rupture (MOR), and internal bonding of the thermally-modified BOSB reached 19.18%, 23.15%, and 53.51%, respectively. The results showed that TS, MOE, and MOR of the thermally-modified BOSB still could meet the 0437.0 standards for commercial OSB (Grade O-1). Keywords: bamboo-oriented strand board, Dendrocalamus asper, physical and mechanical properties, post-thermal treatment, treatment duration
Changes in Chemical Composition of Betung Bamboo (Dendrocalamus asper) after Alkali Immersion Treatment under Various Immersion Times Rio Ardiansyah Murda; Sena Maulana; Adesna Fatrawana; Silvia Uthari Nuzaverra Mayang Mangurai; Soleh Muhamad; Wahyu Hidayat; Yazid Bindar
Jurnal Sylva Lestari Vol. 10 No. 3 (2022): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v10i3.599

Abstract

This research aimed to analyze the change in chemical composition of the betung bamboo (Dendrocalamus asper) strands after alkali immersion treatment under various immersion times. The bamboo culms were converted into strands with the target length, width, and thickness of 70, 25, and 0.5 mm, respectively. Strands were alkali immersion-treated with 1% NaOH solution for 1, 2, and 3 h. Preparation of powder for chemical component analysis refers to the Technical Association of the Pulp and Paper Industry (TAPPI) standard T 264 cm-07 regarding the preparation of wood test samples for chemical analysis. Structural and non-structural bamboo strand chemical components such as holocellulose, alpha-cellulose, hemicellulose, klason lignin, and extractives were analyzed. The results showed that alkali immersion treatment decreased the hemicellulose content from 21.55% before treatment to 20.30% after 3 h immersion. Thus, it changed the holocellulose and alpha-cellulose composition. Alkali immersion treatment also changed the extractive substances dissolved in cold water, hot water, 1% NaOH, and ethanol-benzene solution. The decrease in hemicellulose, molecular weight lignin, and extractive substances would be beneficial for bamboo-oriented strand board manufacture to improve strand adhesion, dimensional stability, mechanical properties, and durability against biological agents attack. Keywords: alkali immersion times, alkali immersion treatment, bamboo, chemical components, pre-treatment
Physical and Mechanical Properties of Cross-Laminated Timber Made of a Combination of Mangium-Puspa Wood and Polyurethane Adhesive Tengku Muhammad Renzy Hariz; Yusuf Sudo Hadi; Muhammad Adly Rahandi Lubis; Muhammad Iqbal Maulana; Rita Kartika Sari; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 1 (2023): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i1.645

Abstract

This study aimed to evaluate the physical and mechanical properties of cross-laminated timber (CLT) characteristics from mangium (Acacia mangium) and puspa (Schima wallichii) woods and their combination using polyurethane (PU 1.2) adhesives. The manufacture of CLT began with basic adhesive characterization and thermo-mechanical analysis. Wood material’s physical and chemical properties were also tested with its response to the PU 1.2 wettability. The CLT (100 ´ 30 ´ 3.60) cm3 was manufactured with 160 g/m2 glue spread at a pressure of 0.80 MPa for 200 minutes. The CLT panels were characterized refers to the JAS 3079  standard. The results show that PU 1.2 had a gelatination time of 182.1 minutes at 25°C, was able to form urethane groups, and experienced an increase in storage modulus at 35°C. Mangium and puspa woods have different physical and chemical properties, but they interact similarly with PU 1.2 wettability. Puspa CLT panel has a higher density than mangium but lower dimensional stability. The bending mechanical properties of hybrid puspa-mangium-puspa CLT were able to match puspa CLT and have one sample of shear strength that met the JAS 3079 standard in both grain directions. Therefore, hybrid puspa-mangium-puspa CLT has the potential to be developed to improve its dimensional stability and mechanical properties. Keywords: Acacia mangium, cross-laminated timber, layer combination, polyurethane adhesive, Schima wallichii
Characteristics of Polyurethane Cross-Laminated Timber Made from a Combination of Pine and Coconut Muhammad Iqbal Adi Baskara; Yusuf Sudo Hadi; Muhammad Adly Rahandi Lubis; Muhammad Iqbal Maulana; Rita Kartika Sari; Fauzi Febrianto; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 2 (2023): May
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i2.691

Abstract

The objective of this study was to assess the properties of cross-laminated timber (CLT) fabricated from the combination of Sumatran pine (P) and coconut trunk (C) bonded with polyurethane adhesive. The basic properties of raw materials and adhesives were characterized. The CLT panels’ length, width, and thickness are 100 cm by 30 cm by 3.6 cm, respectively. Three-layer CLT was made with 4 combinations of face/core/back lamina, i.e., PPP, CCC, PCP, and CPC, which are arranged perpendicular to each other. The laminae were bonded using PU adhesive on 160 g.m-2 glue spread. The CLT’s delamination and wood failure percentages (WFP) were assessed following the JAS 3079 (2019) standard. The study’s results demonstrated that the PU adhesive employed in this investigation could curl ideally at 30°C for 200 min. Solid pine and coconut’s physical and chemical characteristics differed, but their wettability to polyurethane adhesives was identical. Hybrid pine CLT has greater attributes compared to single pine CLT. Single coconut CLT, on the other hand, offers better features than hybrid coconut CLT. All CLT samples failed to fulfil the JAS 3079 (2019) requirement for delamination (=< 10%) and WFP (>= 90%). Keywords: Coconut trunk, cross-laminated timber, layer combination, pine wood, polyurethane adhesive
Characteristics of Eco-Friendly and Sustainable Plywood Adhesive derived from Low-Quality Cat’s Eye Damar Resin Mia Putri Utami; Muhammad Adly Rahandi Lubis; Sandi Asmara; Samsul Bakri; Sri Hidayati; Wahyu Hidayat
Jurnal Sylva Lestari Vol. 11 No. 3 (2023): September
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v11i3.764

Abstract

Wood panel products mainly use formaldehyde-based adhesives that release free formaldehyde and potentially cause health problems. This study aimed to develop a free-formaldehyde adhesive from cat’s eye damar (CED) resin as an alternative adhesive for plywood production. The low-quality CED resin was used to increase the added value of the resin. The adhesive formulation consists of a ratio of 30:70 (CED:benzene) dissolved for 15 minutes at 45°C. The plywood was manufactured using glue spread rates of 200, 250, and 300 g/m2 with an addition of 10% tapioca flour and hot pressed using a pressure of 2.45 MPa at 120°C for 6 minutes. The CED-based adhesive produced has a solid content of 28.76%, a pH value of 5.93, a gel time value of 70.05 minutes, and a viscosity value of 4.02 mPa.s. Fourier-transform infrared spectroscopy analysis stretching of the C-H group, indicating an alkane compound. Plywood’s physical and mechanical properties bonded with CED-based adhesive increased with higher glue spread application. Utilizing a glue spread of 300 g/m2 could produce plywood with comparable physical and mechanical properties to the urea-formaldehyde-bonded plywood. Keywords: cat’s eye damar, dynamic mechanical analysis, formaldehyde-free adhesive, plywood, Shorea javanica
Co-Authors Abdullah Aman Damai Abimanyu, Bondan Adesna Fatrawana Adesna Fatrawana Afif Bintoro Agus Haryanto Agus Haryanto Agus Haryanto Agus Haryanto Agus Setiawan Agus Setiawan Ainin Niswati Ainin Niswati Ainin Niswati Al Qorny, Faiz Alim Fadila Rahman Anis Ambarwati Anne Carolina Apri H Iswanto Apriyanita Pitri Ningrum Apriyanita Pitri Ningrum Arief Darmawan Awandi, Hafizh Bagus Saputra Bagus Saputra Bagus Saputra Bagus Saputra Bainah Sari Dewi Bangun Adi Wijaya Bangun Adi Wijaya Bondan Abimanyu Byantara Darsan Purusatama Byung Bae Park Ceng Asmarahman Ching K Man Christine Wulandari Christine Wulandari Christine Wulandari Christine Wulandari Damai, Abdulah Aman Dani, Hafiz Ansori Deded Sarip Nawawi Denni Prasetia Destia Novasari Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Dian Iswandaru Dian Iswandaru Donghyuk Chun Doni Hapsoro Dungani, Rudi Duryat Duryat Duryat Duryat Duryat Duryat, Duryat Elvara D Satria Eti Artiningsih Octaviani Eva Yunita Eva Yunita Fahriya Puspita Sari Faizatul FALAH Fajri, Ahmad Khairil Falah Rizkasumarta Fauzan Aulia Fauzi Febrianto Fauzi, Daffa Naufalian Febryanto, Indra Gumay Fitriana, Yulia Rahma Go Un Yang Gunawan, Rhezandy Gusri Akhyar Ibrahim Hadida, Ratu Husaina Hadiyane, Anne Handian Purwawangsa Hari Kaskoyo Hari Kaskoyo Harianto, Sugeng P. Hendra Prasetia Hendra Prasetia Hendra Prasetia Hokyung Choi Hyuk Im Indra G Febryano Indra Gumay Febryano Indra Gumay Febryano Intan F Suri Intan Fajar Suri Irma Thya Rani Irma Thya Rani Irma Thya Rani Irma Thya Rani Irwan Sukri Banuwa Ismayati, Maya Iswandaru, Dian Jacky Michael Pah Jiho Yoo Jiho Yoo Jiho Yoo Jiho Yoo Jong Ho Kim Kadek Wikan Nandini Karina Gracia Agatha Tambunan Karina Gracia Agatha Tambunan Karliati, Tati Kaskoyo, Hari Kuswanta Futas Hidayat Kuswanta Futas Hidayat Laksana, Raden Permana Budi Lia Mulyana Lina Nur Aminah Lina Nur Aminah Lisman Suryanegara Lubis, Muhammad Adly Rahandi Mareli Talaumbanua Marwanto Marwanto Marwanto Maulana, Sena Maulana, Sena Melya Riniarti Melya Riniarti Mhd Muhajir Hasibuan Mia Putri Utami Mia Putri Utami Mohamad I Sya&#039;bani Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Aldo Kurniansyah Muhammad Alfaridzi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Naili Rahmah Nam Hun Kim Nam Hun Kim Nindya Triya Puspita Nissa Nurfajrin Solihat Nugraha, Muhammad Dimaz Nurpine Nadeak Nurpine Nadeak Oktarine Melly Aminah Harum Park, Byung Bae Park, Byung Dae Permana, Anom Tahta Prasetyo, Pangestu Putri, Mangifera Indica Dhaifullah Wangun Rafical Cahaya Utama Rahmat Safe’i Rahmat Safe’i Rahmi Adi Bazenet Rahmi Adi Bazenet Rahmi Adi Bazenet Rani, Irma Tya Rara Diantari Rasyidah Amany Rini Nurindarwati Rio Ardiansyah Murda Rita K Sari Rita Kartika Sari Rodiani Rodiani Rodiani Rommy Qurniati Rubiyanti, Tri Rudi Hilmanto Rudi Hilmanto Rudi Hilmanto Rynaldo Davinsy Safe’i, Rahmat Salsabila, Sahda Samsul Bakri Samsul Bakri Sandi Asmara Sanena, Tia Silvia Sangdo Kim Sangdo Kim Sangdo Kim Sangdo Kim Saputra, Bagus sari, nurika arum See P Hwee Seldi Prayoga Seung Hwan Lee Shalehudin Denny Ma’ruf Sihyun Lee Sihyun Lee Sihyun Lee Sihyun Lee Silvia Uthari Nuzaverra Mayang Mangurai Siti Aisyah Siti Mutiara Ridjayanti Siti Mutiara Ridjayanti Slamet Budi Yuwono Slamet Budi Yuwono Sofiyan, Ade Soleh Muhamad Soleh Muhamad Soohyun Kim Sri Hidayati Sumaryo Gito Saputro Suri, Intan Fajar Susni Herwanti Susni Herwanti Tengku Muhammad Renzy Hariz Tri Putri Siadari Tri Putri Siadari Tri Yulianto Tri Yulianto Tri Yulianto Tsani, Machya Kartika Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Wahyu Abdul Rahman Widya FATRIASARI Wijaya, Bangun Adi Winarno, Gunardi Djoko Winarno, Gunardi Djoko Wisnu Satyajaya Wulandari, Christin Yadav, Sumit Manohar Yazid Bindar Yogi Sulistio Yoo, Jiho Yunita, Repha Sera Yusuf Sudo Hadi Zaini, Lukmanul Hakim