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Pemberdayaan Masyarakat dalam Pelestraian Hutan dan Pertanian Berkelanjutan di Sekitar Suaka Margasatwa Karakelang, Sulawesi Utara Adi Widyanto; Sri Mulatsih; Lina Karlinasari
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 4 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.4.1019-1031

Abstract

The protection of Karakelang wildlife sanctuary has been challenged by forest encroachment, timber harvesting and wildlife poaching - all of which are attributed to social economic condition of the communities living in the vicinity. A community based conservation program was delivered to strengthen communities’ role in maintaining forest integrity while making good income from sustainable agriculture. This action research using mixed methodology evaluates the influence of program delivery in changing the knowledge, attitude and practice of forest protection and sustainable agriculture among beneficiaries in three villages. Data was collected using structured interview, while other supporting information was taken from project reports and field notes. The Wilcoxon Signed Rank Test reveals that program has influence in changing the knowledge of respondents in both forest protection and sustainable agriculture, as well as in the change of attitude and practice regarding sustainable agriculture. However, it does not have influence in changing their attitude and practice toward forest protection. As shwon by economic indicator, program has contributed in providing new source of income to farmers household. The result of logistic regression shows that age, education, land ownership and income has influence in the change of people’s knowledge about forest biodiversity. Only age has influence in change of attitude towards sustainable agriculture, and only land ownership has influence on support to forest protection.
EVALUASI CACAT PENGERINGAN DAN PEMESINAN PADA EMPAT JENIS KAYU CEPAT TUMBUH TERMODIFIKASI PANAS Ulfa Adzkia; Trisna Priadi; Lina Karlinasari
Jurnal Penelitian Hasil Hutan Vol 37, No 3 (2019): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2019.37.3.204-216

Abstract

Perlakuan panas merupakan salah satu metode yang dapat meningkatkan kualitas kayu termasuk untuk kayu cepat tumbuh. Namun perlakuan tersebut dapat menyebabkan cacat pengeringan serta perubahan sifat pemesinan setelah perlakuan panas. Tujuan penelitian ini untuk mengevaluasi pengaruh variasi jenis kayu dan waktu pemanasan terhadap adanya cacat pengeringan dan pemesinan kayu cepat tumbuh. Jenis kayu cepat tumbuh yang digunakan adalah jati, mangium, jabon dan sengon. Perlakuan panas dilakukan pada suhu 165ºC dengan variasi waktu 0 jam (kontrol), 2 jam dan 6 jam. Hasil penelitian menunjukkan bahwa kadar air dan kerapatan kayu menurun setelah perlakuan panas. Perlakuan panas berhasil menurunkan kadar air 57% dan menyebabkan penurunan kerapatan kayu hingga 20% dibandingkan dengan kayu kontrolnya. Cacat pengeringan retak ujung pada jati, mangium, jabon dan sengon meningkat setelah perlakuan panas selama 2 dan 6 jam. Di sisi lain, cacat retak permukaan pada jati, mangium, sengon dan jabon berkurang. Cacat setelah menerapkan kegiatan pemesinan yaitu cacat pengamplasan, penyerutan, pembentukan, dan pengeboran menurun pada jati, mangium, jabon dan sengon setelah perlakuan panas 2 dan 6 jam. Jati adalah spesies kayu terbaik dalam hal kualitas pemesinan setelah perlakuan panas diikuti oleh jabon, mangium, dan sengon. Pada suhu 165°C dalam 2 jam dianggap sebagai waktu yang tepat untuk perlakuan panas dalam hal memperoleh cacat minimal pengeringan dan pemesinan.
Characteristics Ultrasonic Waves Velocity and Anatomical Properties of Tapping Pine Maryam Jamilah; Lina Karlinasari; Sucahyo Sadiyo; Gunawan Santosa
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 13, No 1 (2015): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.838 KB) | DOI: 10.51850/jitkt.v13i1.59

Abstract

Non-destructive testing based on sound wave propagation has been used widely to estimate wood quality of standing trees. The aim of this study was to evaluate the characteristics of the sound wave velocity in relation to pine resin productivity and resin intercellular frequency and diameter. The samples were 72 trees consisted of 36 trees which were tapped by the quarre method and 36 other trees were tapped with addition of stimulants. The speed of sound waves propagation was measured by SylvatestDuo for radial direction and longitudinal. The tapping position was determined refering to the wind direction. The resin productivity was twice for tapping with stimulant comparing to the control. The highest resin productivity was 87.31 g per harvest for tapping with stimulant and the lowest (39.86 g per harvest) for control. Statistically, there was not significant difference in sound speed for tapped position as well as for measurement before and after tapped of both radial and longitudinal testing, as well as for the anatomical properties of both of treatments. A high positive correlation was found between resin productivity and intercellular frequency for both treatments (r>0.80), however, there was not significance correlation between resin productivity and other parameters.Keywords: Pinus merkusii, resin tapping, sound wave propagation
Aplikasi Isotop δ13C dan δ18O untuk Lacak Balak Kayu Jati (Tectona grandis Linn.f.) di Jawa Application of Isotopes δ13C and δ18O for Teak Wood (Tectona grandis Linn.f.) Timber Tracking in Java Agus Kholik; Djiono Djiono; Iskandar Z Siregar; Ulfah J Siregar; Lina Karlinasari; Tedi Yunanto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 7, No 1 (2009): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (573.665 KB) | DOI: 10.51850/jitkt.v7i1.237

Abstract

Tracking the origin of Teak timber and its wood product is possible to be carried out using stable isotopes fingerprinting.  To enrich the available variation patterns, Teak woods samples were collected from nine Forest Management Units (FMUs) representing all provinces and Teak centres in Java.  Mills from all part of woods were mixed for analyses.  The mills were burned under vacuum in a reactor system at 1200oC for 2 h, the resulting clean CO2 was transferred to the mass spectrometer to determine its isotopic composition of δ13C and δ18O.  The generated data was then analysed using multivariate analysis.  The results showed that isotopes analysis grouped Teak populations in Java intoWest Java population and mixed Central-East Java population.  To consider wood as material for fingerprinting traded forest product, a refinement on method should be done.
Modifikasi Faktor Konversi Format dan Faktor Normalisasi Reliabilitas dalam Standar ASTM D 5457 untuk Penyempurnaan Standar SNI 7973:2013 (Modification of Format Conversion Factor and Reliability Normalization Factor in the ASTM D 5457 Standard Applicable for SNI 7973:2013 Standard) Leonard D D Liliefna; Naresworo Nugroho; Lina Karlinasari; Sucahyo Sadiyo
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (360.616 KB) | DOI: 10.51850/jitkt.v17i1.458

Abstract

The Indonesian SNI 7973:2013 standard for wood design specification was an adopted standard from the USA national design specification (NDS) 2012. However, due to the climate differences between USA and Indonesia, the SNI 7973:2013 standard should be further modified in order to meet the climate condition in Indonesia. Format conversion factor (KF) and reliability normalization factor (KR) specified in the ASTM D 5457 standard contained the snow load for the duration of load factor. Therefore, the objectives of this study were (1) to replace snow load with occupancy live load to revise KF, (2) to use the revised KF and safety factors for softwood and hardwood to perform the reliability analysis on calculated resistance factors (fc), (3) calculate the new KR values using the revised fc. The result of FORM reliability analysis showed that there were, on the average, 15 and 26% increases of the calculated KR values, respectively, for softwood and hardwood, over the calculated KR values according to the ASTM D 5457 standard for each given coefficient of variation of material resistance distribution.
Keragaman Genetik Pertumbuhan dan Hubungannya dengan Penetrasi Pilodyn pada Uji Provenansi-Keturunan Jabon (Neolamarkcia cadamba (Roxb) Bosser) di Parung Panjang, Bogor) (Genetic Variation of Growth and Its Relationship with Pilodyn Penetration on Provenance-Progeny Trial of Jabon (Neolamarkcia cadamba (Roxb) Bosser) at Parung Panjang, Bogor) Nelly Anna; Iskandar Z Siregar; Supriyanto Supriyanto; Lina Karlinasari; Dede J Sudrajat
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1022.732 KB) | DOI: 10.51850/jitkt.v16i2.451

Abstract

Jabon (Neolamarkcia cadamba (Roxb) Bosser) is a fast growing and preferred species as material for various wood industries. However, the growth and quality information of its wood is still limited. This study aims to assess the characteristics of growth, physical properties of wood, genetic parameters of growth and physical properties of wood, and its relationship with pilodyn penetration on provenance-progeny trial of jabon in Parung Panjang, Bogor.  Measurement of growth characteristics was performed on height and diameter at breadst height (DBH), whereas the physical properties of wood (density, specific gravity, and moisture content) were performed using core samples (destructive methods) and density estimation with pilodyn (nondestructive method). Statistical analysis explains that there are significant differences between provenances in height, diameter, pilodyn penetration, density, and specific gravity, except for moisture content. The mean of plant survival percentage of 36 months old jabon was 52.8%. The relationship between growth character and the physical properties of wood with pilodyn penetration is negative and weak, except in moisture content, positive but weak. The estimation of individual heritability value ranges from 0.011 to 0.183, while heritability of the family ranges from 0.017 to 0.308.
Karakteristik Perubahan Warna dan Kekerasan Kayu Termodifikasi Panas pada Berbagai Suhu dan Jenis Kayu (Color Changes and Hardness Properties of Thermally Modified Wood at Various Temperatures and Wood Species) Lina Karlinasari; Fengky S Yoresta; Trisna Priadi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 1 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1782.271 KB) | DOI: 10.51850/jitkt.v16i1.443

Abstract

Thermally modified wood by heat treatment are conducted to improve wood quality through high temperature application dealing with to increase dimensional stability and biological durability. However, this treatment can decrease others properties such as mechanical properties and color changes. The aim of this study was to evaluate the color changes as well as hardness properties which undergone heat treatment. Sengon (Paraserianthes falcataria), jabon (Anthocephalus cadamba), and mangium (Acacia mangium) wood species were heat treated at temperature 120, 150, and 180 °C for duration 2 and 6 h. Pretreatments were carried through natural drying and kiln dryer at low temperature 40 °C. The result showed that the temperature and duration of heat treatment were effected on color changes to become darken mainly in jabon and mangium wood. Heat treatment at three temperature which subjected to the samples was not influenced significantly on hardness properties. Pretreatment maintained the moisture content stability but not influenced on wood properties tested.
Nondestructive bending strength testing of wood wool cement board from some fast growing species using stress wave velocity method Lina Karlinasari; Muhammad F Ikhsan; Dede Hermawan; Akhiruddin Maddu; Anita Firmanti
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 9, No 2 (2011): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (462.663 KB) | DOI: 10.51850/jitkt.v9i2.138

Abstract

The nondestructive testing using stress wave velocity method is known as most important tool to be used in quality control purposes. The aim of this study was to investigate the stress wave velocity (SWV) and to determine correlation between its velocity and dynamic MOE on static bending strength properties (MOE and MOR) of wood wool cement particleboards (WWCB). Thirty six WWCB particleboards from 3 tropical fast growing species (Paraserianthes falcataria, Maesopsis eminii, and Acacia mangium) and three different particleboards density of 0.5, 0.8 and 1.0 g cm-3 were made in this study. SWV value was determined using stress wave timer and it used to measure dynamic MOE. The measurement results of static bending strength method (MOEs and MOR) and by stress wave method were compared. The result showed the higher density of CBWW the higher of stress wave velocity. The WWCB particleboard of sengon possessed the highest value for both SWV and MOR. The dynamic MOE measured by stress wave method was about 80% higher than that static test. The good correlations were found between SWV and static MOE, MOR and it was statistically significant for linear regression model developed.Key words: fast growing species, nondestructive testing, static bending strength, stress wave velocity, wood wool cement particleboard
Compression Strength Perpendicular to the Grain of Cross Laminated Timber (CLT) of the Three Community Wood Species Muthmainnah Muthmainnah; Sucahyo Sadiyo; Lina Karlinasari
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 2 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (507.175 KB) | DOI: 10.51850/jitkt.v12i2.69

Abstract

Cross Laminated Timber (CLT) is an engineered wood products composed of multi-layered panel of lumber where each layer of boards is placed cross-wise to adjacent layers. The purpose of the present research was to evaluate the compression strength perpendicular to grain of CLT composed of 5 layers tested with line loads in square surface. The position of line loads was in the centre and edge of sample orientated both in parallel and perpendicular to the grain direction at the CLT-surface. The CLT specimens were (15x20x20) cm3 (thickness, width and length) in size and were prepared from three community timber, i.e. sengon (Paraserianthes falcataria), mindi (Melia azedarach L.), and nangka (Artocarpus heterophyllus Lamk.). The result showed that the edge loading position resulted in lower compression strength than that of the central loading position. The highest comprresion strength was retained by CLT tested in the center loading position oriented to perpendicular to the grain direction. The highest compression strength perpendicular to grain was retained by CLT of nangka wood (20.28 kg cm-2) followed successively by those of CLT of mindi (25.97 kg cm-2) and CLT of sengon(8.50 kg cm-2).Keywords: CLT, compressive strength perpendicular to grain, line load, mindi, nangka, sengon
Strategi Pengembangan Pusat Pendidikan Lingkungan Hidup (Pplh) Seloliman Di Kabupaten Mojokerto, Jawa Timur Heni Habibah; Lina Karlinasari; Siti Badriyah Rushayati
Jurnal Penelitian Sosial dan Ekonomi Kehutanan Vol 19, No 1 (2022): Jurnal Penelitian Sosial dan Ekonomi Kehutanan
Publisher : Pusat Penelitian dan Pengembangan Sosial, Ekonomi, Kebijakan dan Perubahan Iklim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpsek.2022.19.1.15-27

Abstract

The Environmental Education Center (PPLH) Seloliman is a place for environmental education for students, teachers and the public who can learn and interact directly with the actual state of nature. The development of PPLH Seloliman has a very important role in the success of environmental education. This study aims are to analyze internal and external factors for the existence of PPLH Seloliman, analyzing the strategic position of PPLH Seloliman development, and developing alternative strategies for developing PPLH Seloliman. Survey methods and analysis of Strength-Weakness-Opportunity-Threats (SWOT) were carried out in this study. The result showed there are seven strength variables and three weakness variables on internal factors, six opportunity variables and three threat variables on external factors. The strategic position of PPLH is in quadrant I, an aggressive management strategy by taking advantage of strengths and opportunities. Alternative development strategies for PPLH Seloliman that are generally identified are collaboration with relevant ministries (Ministry of Tourism and Creative Economy, Education, Culture, Research and Technology, and Ministry of Environment and Forestry Ministry), private institutions (tourism travel service bureaus and mass media), and academics in terms of adding media innovations to support environmental education at PPLH Seloliman.
Co-Authors Adi Widyanto Adisti Permatasari Putri Hartoyo Adrin, Adrin Agus Kholik Akhiruddin Maddu Akrom, Akrom Alfira Ramadhani Putri Aminuyati Anas Miftah Fauzi Andi Sukendro Anita Firmanti Arif Kurnia Wijayanto Arinana Arinana Aris Purwanto Asep Denih Ati Dwi Nurhayati Atmawi Darwis Atmawi DARWIS Bagus MARTIANTO Baihaqi, Hans Budi Hadi Narendra Davinsy, Rynaldi Decsa Medika Hertanto Dede Hermawan Dede J Sudrajat Deded Sarip Nawawi Deviro, Sonya Okta Dikhi Firmansyah Diposani, Diva Putri Diva Putri Diposani Djiono Djiono Djoko Santoso Djoko Santoso Dodi Nandika Dwi Premadha Lestari Effendi Tri Bahtiar Erizal Eti Rohaeti Eti Rohaeti Evalina Herawati Fengky Satria Yoresta Fitta Setiajiati Fredisa, Yoga Gunawan Santosa Gustian Rama Putra Hans Baihaqi Hari Wijayanto Hendra Kurniawan Heni Habibah I Nyoman Jaya Wistara I Wayan Darmawan Ignasia Maria Sulastiningsih Ina RITA Irmanida Batubara Iskandar Z Siregar ISKANDAR ZULKARNAEN SIREGAR Istie Rahayu Jeki, Jeki Kaswanto, Regan L. Leonard D D Liliefna Lestari, Dwi Premadha Lucia Dhiantika Witasari Lucia Dhiantika Witasari Lucia Dhiantika Witasari, Lucia Dhiantika Lusita WARDANI M. Farouq Iksan Machfud Machfud Madani, Hilmi Naufal mahdi mubarok Maryam Jamilah Maya Rahmawati Maya Rahmawati, Maya Merry Sabed Merry Sabed Mohammad Muslich Muhammad F Ikhsan Murodif, Atfal Naresworo Nugroho Nelly Anna Nelly Anna Nur Alam Nurul Asmarani Damayanti Rahardjo Putri, Lora Septrianda Rachmayanti, Yanti Reza Ro'isatul Umma Rifana, Haikal Zaky Rima Vera Ningsih Rita Rahmawati S.Pd. M Kes I Ketut Sudiana . Satriawan, Handi Siti Badriyah Rushayati So, Kristianto Wibison Solly Aryza Sri Mulatsih Sri Wilarso Budi Sucahyo Sadiyo Sulistyono Sulistyono Supriyanto Supriyanto Surjono Surjokusumo Surjono Surjokusumo Surjono Surjokusumo Surjono Suryokusumo Suryokusumo, Surjono Tarcisius Rio Mardikanto Tedi Yunanto Telnoni, Sipora Petronela TR. Mardikanto TR. Mardikanto, TR. Trisna PRIADI Trisni Untari Dewi Ulfa Adzkia Ulfah Juniarti Siregar Widiatmaka Yanti Rachmayanti Yudi Chadirin Yusup Amin