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SIFAT KETERBASAHAN PADA BIDANG TANGENSIAL DAN RADIAL KAYU RAJUMAS Andi Tri Lestari
PERENNIAL Vol. 16 No. 1 (2020)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v16i1.7638

Abstract

Rajumas merupakan tanaman lokal yang menjadi komoditi endemik di Nusa Tenggara Barat yang jarang dimanfaatkan (lesser-used wood species) karena kekuatan dan keawetannya rendah Kualitas kayu rajumas dapat ditingkatkat dengan mengaplikasikan bahan pengawet maupun bahan pelapis pada kayu tersebut. Faktor utama yang mempengaruhi keberhasilan aplikasi bahan pengawet maupun bahan pelapis pada kayu adalah keterbasahan kayu itu sendiri. Penelitian ini dilakukan untuk menguji keterbasahan kayu rajumas pada masing-masing 3 papan radial dan 3 papan tangensial kayu rajumas. Masing-masing contoh uji diuji keterbasahannya pada 5 titik yang berbeda dengan metode sessile drop. Hasil pengukuran menunjukkan bahwa penampang tangensial memiliki keterbasahan yang lebih tinggi dibandingkan dengan penampang radial. Rerata K-value yang dihasilkan pada penampang radial masing-masing adalah 0.15, 0.15 dan 0.16 sedangkan rerata K-value yang dihasilkan pada penampang tangensial masing-masing adalah 0.36, 0.32 dan 0.30. Meski demikian hasil tersebut mengindikasikan bahwa tidak ada perbedaan yang signifikan antar pola penampang kayu pada kayu rajumas. Rerata K-value dari semua kayu yang diuji lebih besar dari 0 yang mengindikasikan bahwa cairan dapat menyebar dan menembus permukaan kayu yang diuji.
SIFAT FISIKA BAMBU GALAH (Gigantochloa atter) BERDASARKAN ARAH AKSIAL DI KECAMATAN GUNUNG SARI KABUPATEN LOMBOK BARAT: Effects of Axial Directions to the Physical Properties of Galah Bamboo(Gigantochloa atter) in Gunung Sari Region, Western Lombok Regent Andi Tri Lestari; Febriana Tri Wulandari
PERENNIAL Vol. 16 No. 2 (2020): Vol. 16 No. 2, Oktober 2020
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v16i2.9526

Abstract

Lombok island is one of the islands in Indonesia which is rich in bamboo varieties and one of them is galah (Gigantochloa atter). This species is generally used for crafting and furniture by people of the Gunung Sari area, Western Lombok Regent. The study of the physical properties of this bamboo was important because they were correlated to bamboo quality especially for cutting, defects, boring, shaping, stripping, and sanding. The objective of this study was to understand the influence of axial directions (bottom, middle, and top portions) on physical properties and their values which were investigated with the experimental method. The experimental design was completed randomized design (CRD) employing axial directions as the parameters with three replications. The statistical analyses were Anova with range tests at α = 5%, and Least Significant Difference (LSD) tests at α = 5%. The results showed that the treatments of physical properties (axial directions at the bottom, middle, and top portions) of galah bamboo were not significantly different. The average fresh moisture content was 176.21%, air-dried moisture content 14.43%; fresh density 0.40; air-dried density 0.54; oven-dried density 0.51.Keywords: axial directions; density; galah bamboo; moisture content; physical properties
EVALUASI RISIKO POHON DI RTH UDAYANA KOTA MATARAM DENGAN TREE RISK ASSESMENT Sitti Latifah; MRT Mudhofir; Budhy Setiawan; Andi Tri Lestari; M Husni Idris; Niechi Valentino; Eni Hidayati; Nuraeni Nuraeni; Tedi Zulia Putra
Journal Penelitian Kehutanan FALOAK Vol 4, No 2 (2020): Jurnal Penelitian Kehutanan Faloak
Publisher : Balai Penelitian Dan Pengembangan Teknologi Hasil Hutan Bukan Kayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpkf.2020.4.2.141-160

Abstract

Jalur hijau merupakan salah satu cara untuk memenuhi keberadaan ruang terbuka hijau di perkotaan yang ditunjang olehnya berbagai jenis tanaman penutup lahan hingga pohon sebagai yang memiliki peran penting baik secara ekologis, sosial budaya, estetika dan ekonomi. Mempertimbangkan pentingnya pohon di perkotaan, kesehatan pohon harus di perhatikan untuk mencegah terjadinya kecelakaan yang disebabkan oleh pepohonan di sepanjang Jalur Udayana Kota Mataram. Kondisi kerusakan pohon dapat menjadi salah satu indikator dimana pohon-pohon dikatakan sehat atau sakit. Oleh sebab itu penelitian ini bertujuan untuk mengindentifikasi jenis dan karakteristik pohon, mengevaluasi resiko pohon, dan merekomendasikan penurunan resiko pohon di RTH Jalur Udayana Kota Mataram. Penelitian ini dilakukan dengan metode purposive sampling dan Tree Risk Assesment berdasarkan standar ISA. Hasil identifikasi terhadap jenis pohon di RTH Udayana didominasi oleh jenis Trembesi (Samanea saman). Penilaian terhadap resiko pohon, didapatkan sebagian besar (71%) masih terkategorikan berisiko rendah dengan tingkat kerusakan pada tajuk umumnya berkisar antara 10% sampai dengan 25%. Sehingga, rekomendasi yang dapat diberikan untuk penurunan resiko pohon di RTH Jalur Udayana Kota Mataram adalah dengan pemangkasan (pruning), yaitu satu bentuk penanggulangan risiko yang paling direkomendasikan untuk meminimalisasi jumlah cabang yang mati pada tajuk pohon.
Identifikasi Diversitas Sumber Pakan Lebah Berbasis Lahan Pekarangan pada Meliponikultur (Identification of Bee Forage Sources Diversity Based on Home Garden in Meliponicultural) Endah Wahyuningsih; Maiser Syaputra; Pande Komang Suparyan; Andi Tri Lestari
Jurnal Penelitian Hutan Tanaman Vol 19, No 1 (2022): Jurnal Penelitian Hutan Tanaman
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpht.2022.19.1.29-44

Abstract

AbstractKelulut cultivation (meliponiculture) has the potential to be developed in West Nusa Tenggara (NTB) due to the availability of abundant natural bee forage resources. The meliponiculture in NTB is generally still on a home garden-based scale. However, the lack of public knowledge about the variety of plants that produce nectar, pollen, and resin throughout the year is an obstacle to the development of meliponiculture. This study aims to identify the variety of the bee forage and identify constraints and opportunities for developing its cultivation. The results showed that 30 species of plants have the potential as bee forage sources, consisting of seasonal and herbaceous plants. All these plants produce pollen, in which 27 species produce pollen and nectar, and only six can produce all pollen, nectar, and resin. Based on identification results, there are five obstacles and five opportunities in meliponiculture at the research site. The main obstacle was the lack of knowledge about the economic and ecological prospects of meliponiculture. At the same time, the opportunity for cultivation is enormous due to the availability of abundant bee forage resources. Therefore, it is necessary to conduct counseling and training on the economic and ecological prospects of meliponiculture, potential food sources, colony maintenance, and post-harvest processing.Keywords: bee forages, cultivation, home garden, meliponiculture AbstrakBudidaya kelulut (meliponiculture) berpotensi dikembangkan di Nusa Tenggara Barat (NTB) karena ketersediaan sumber daya yang cukup melimpah di alam. Budi daya kelulut di Nusa Tenggara Barat umumnya masih berskala rumah tangga berbasis pekarangan (home garden). Namun kurangnya pengetahuan masyarakat tentang ragam tumbuhan yang menghasilkan nektar, polen, dan/atau resin sepanjang tahun menjadi kendala dalam pengembangan budidayanya. Penelitian ini bertujuan untuk mengidentifikasi jenis tanaman sumber pakan kelulut, mengidentifikasi kendala dan peluang pengembangan budidayanya.  Hasil penelitian menunjukkan terdapat 30 jenis tanaman sumber pakan potensial kelulut yang terdiri dari jenis tanaman tahunan dan tanaman herba. Seluruh tanaman tersebut menghasilkan pollen, 27 jenis diantaranya menghasilkan pollen dan nektar, dan hanya 6 jenis yang dapat menghasilkan pollen, nektar dan resin sekaligus. Hasil identifikasi menunjukkan bahwa ada 5 kendala dan 5 peluang dalam budi daya kelulut di lokasi penelitian. Kendala utama pengembangan budi daya kelulut, yaitu kurangnya pemahaman tentang prospek ekonomi dan ekologi budi daya kelulut, sedangkan peluang budidaya sangat besar karena ketersediaan sumber pakan yang melimpah. Oleh karena itu, perlu dilakukan penyuluhan dan pelatihan tentang prospek ekonomi dan ekologi budi daya kelulut, sumber pakan potensial, pemeliharaan koloni dan pengolahan pasca panen.Kata kunci: budi daya, pekarangan, sumber pakan, kelulut
EVALUASI PENGARUH PEMBERIAN BAHAN PENGAWET TERHADAP LAPISAN FINISHING EKSTERIOR KAYU PINUS DAN JATI RAKYAT Fauzan Fahrussiam; Andi Tri Lestari
AGROTEKSOS, Jurnal Ilmiah Ilmu Pertanian Vol 33 No 1 (2023): Jurnal Agroteksos April 2023
Publisher : Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agroteksos.v33i1.808

Abstract

Woods that were placed outdoors were exposed to UV-induced photodegradation processes which damaged the lignin bonds in the wood resulting in the more susceptible woods against abrasion and weathering. This circumstance led to more finishing processes by applying paint to the wood surface carried out by industries and at the home level. Some finishing materials not only contribute to increasing the aesthetics of the wood surface but also increased the wood's resistance against harmful microorganisms. On the other hand, the resistance against pests did not increase as high as the resistance against outdoor weathering. In this study, pine woods and teak woods collected from the community forest were soaked in cold borax solution as a preservative agent before applying the paint to the wood surface. The treatments applied to the samples in this study were untreated control samples, preservative-treated samples, finishing-treated samples, and both preservative and finishing-treated samples. The results of this study showed that both teak and pine wood with preservative and finishing treatment were resistant to microbial damage (0% damage) after left 8 weeks of exposure in the outdoor area. However, there is a need to conduct further research with longer exposure time (1-2 years) to get more significant result differences between each treatment.
KARAKTERISTIK BIOPELLET DARI CAMPURAN LIMBAH CANGKANG KEMIRI (Aleurites moluccana) DENGAN SERBUK KAYU JATI (Tectona grandis Linn) Ilham Muziburrahman; Hairil Anwar; Andi Tri Lestari
Tengkawang : Jurnal Ilmu Kehutanan Vol 13, No 2 (2023): TENGKAWANG : JURNAL ILMU KEHUTANAN
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jt.v13i2.72280

Abstract

Biopellets are one of the alternative energies from biomass. The purpose of this study was to determine the physical properties and quality of biopellets from the combination of hazelnut shell raw materials and teak sawdust. The highest density was obtained in A4B4 treatment of 0.42 gr/cm3 and the lowest in A5B5 treatment of 0.26 gr/cm3. The highest water content of A3B3 treatment was 0.23% and the lowest in A1B1 treatment was 0.13%. The highest ash content of A1B1 treatment was 12.98% and the lowest was A4B4 treatment 5.28%.The highest level of flying substance A2B2 treatment was 32.73% and the lowest A4B4 treatment was 27.99%. The highest bound carbon in A4B4 treatment was 66.59% and the lowest in A1B1 treatment was 55.50%. The highest calorific value of A2B2 treatment is 17.85 MJ/Kg and the lowest is A1B1 treatment 17.21 MJ/Kg.Keywords: biopellet, candlenut shell, physical properties, quality, teak wood powderAbstrakBiopellet merupakan salah satu energi alternatif dari biomassa. Tujuan penelitian ini untuk mengetahui sifat fisis dan kualitas biopellet dari kombinasi bahan baku cangkang kemiri dan serbuk kayu jati. Diperoleh kerapatan tertinggi pada perlakuan A4B4 0,42 gr/cm3 dan terendah pada perlakuan A5B5 sebesar 0,26 gr/cm3. Kadar air tertinggi perlakuan A3B3 0,23% dan terendah pada perlakuan A1B1 0,13%. Kadar abu tertinggi perlakuan A1B1 12,98% dan terendah perlakuan A4B4 5,28%. Kadar Zat Terbang tertinggi perlakuan A2B2 32,73% dan terendah perlakuan A4B4 27,99%. Karbon terikat tertinggi pada perlakuan A4B4 66,59% dan terendah perlakuan A1B1 55,50%. Nilai kalor tertinggi perlakuan A2B2 17,85 MJ/Kg dan terendah perlakuan A1B1 17,21 MJ/Kg.Kata Kunci: biopellet, cangkang kemiri, sifat fisik, kualitas, serbuk kayu jati
Pengaruh Viskositas Cat Terhadap Daya Lekat Bahan Pelapis Akhir pada Kayu Rajumas (Duabanga moluccana Blume): The Effect of Paint Viscosity on The Adhesion of Top Coating on Rajumas Wood (Duabanga moluccana Blume) Liza Umitasari; Anwar, Hairil; Lestari, Andi Tri
PERENNIAL Vol 19 No 2 (2023): Vol. 19 No. 2, Oktober 2023
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v19i2.30516

Abstract

This research aims to analyze the effect of paint viscosity on the adhesion of the final coating material to the radial and tangential sections of Rajumas wood. The research samples were smoothed using sandpaper and coated with water-based paint. Variations in paint viscosity are obtained by dilution using 10%, 20% and 30% of 1L of water. The viscosity of the paint solution obtained by dilution of 10%, 20% and 30% was 2.32 poise, 2.41 poise and 2.44 poise, respectively. Paint adhesion testing uses the Cross Cut Test method which refers to ASTM D 3359-09. The results of the research show that variations in paint viscosity have a significant effect on the adhesion of the final coating material to the radial and tangential cross-sections of Rajumas wood. A viscosity of 2.32 poise produces the best paint adhesion compared to a viscosity of 2.41 poise and 2.44 poise and the difference in cross-section (radial and tangential) does not show a significant difference in the adhesion value of the final coating material to Rajumas wood.
Pengaruh Viskositas Cat Terhadap Sifat Keterbasahan Kayu Rajumas (Duabanga moluccana Blume): The Effect of Paint Viscosity on The Wettabillity of Rajumas Wood (Duabanga moluccana Blume) Maulia, Zsarytha; Anwar, Hairil; Lestari, Andi Tri
PERENNIAL Vol 19 No 2 (2023): Vol. 19 No. 2, Oktober 2023
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v19i2.31323

Abstract

Rajumas wood is one of the local wood forest products from West Nusa Tenggara and has low strength and durability. Finishing treatment is needed for the service life of wood. One of the indicators of finishing quality is the ability of paint liquid wetting on the wood surface (wettability). This research aims to analyze the effect of paint viscosity on the wettability of rajumas wood. The samples used were radial and tangential sections in air-dry condition, and the wood surfaces were sanded with abrasive paper of 150 grit. The value of viscosities was 2.44, 2.41, and 2.32 poise from each percentage of paint and water ratio of 90%:10%, 80%:20%, and 70%:30%. Wettability was determined based on the rate of change equilibrium contact angle using the S/G equation. The research results show that the low viscosity value of Aqua Politur produces the lowest equilibrium value and highest wettability value (K-Value) in both radial and tangential sections. A high K-value indicates that Aqua Politur's ability to wet the wood surface is better, as shown by the paint percentage ratio of 70%:30%.
Pemetaan dan Analisis Pengelolaan Sampah di Kawasan Ekonomi Khusus (KEK) Mandalika, NTB: Mapping and Waste Management Analysis in The Special Economic Zone (SEZ) Mandalika, NTB lestari, andi tri; Anwar, Hairil; Syaputra, Maiser
PERENNIAL Vol 20 No 1 (2024): Vol. 20 No. 1, April 2024
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v20i1.32908

Abstract

One of the main tourist destinations in NTB Province currently is the Mandalika area, part of the Central Lombok region. This area is designated a Special Economic Zone (SEZ) based on PP Number 52 of 2014. Tourist visits increased drastically at the 2021 World Superbike (WSBK) event, and it is assumed that this will grow at the upcoming 2022 MotoGP event. An increase in the number of tourists has a positive and negative impact on the environment, along with increasing waste production. This research analyzed waste generation, composition, and effective waste management in the Mandalika SEZ. Analysis of waste production and composition will be carried out by referring to SNI 19-3964-1994 regarding methods for collecting and measuring samples of urban waste production and composition while analyzing waste management in the Mandalika SEZ, which was carried out by interview. The research results show that the average waste production in the Mandalika SEZ is 58.16 kg/Day. The most dominant waste composition is organic waste originating from food scraps, with an average of 39.56 kg/day, followed by the amount of plastic waste with an average of 16.41 kg/day. The smallest amount of waste at the research location is paper waste, with an average of 0.48 kg/day, and other waste is used diapers, with an average of 1.71 kg/day. The Waste Management Model shows that the average waste produced at the research location is 58.16 kg in one day. As a result of the indicators of waste production, in just one month, the waste production reached 1744.80 kg/day if it was not handled at all. Based on the research results, waste management modeling was produced by increasing public awareness, organic waste management using the Anaerobic Digestion Method and inorganic waste management using the recycling method. This modeling shows that the method applied can reduce waste production by up to 0.15%, namely 263.10 kg/day.
EFISIENSI SALURAN PEMASARAN KEMIRI (ALEURITES MOLUCCANA) PADA KELOMPOK TANI HUTAN WAHANA KAWASAN DI HUTAN KEMASYARAKATAN GUNUNG SASAK, KABUPATEN LOMBOK BARAT Juansyah, Raj’i Waldi; Setiawan, Budhy; Lestari, Andi Tri
JURNAL AGRIMANSION Vol 25 No 1 (2024): Jurnal Agrimansion April 2024
Publisher : Jurusan Sosial Ekonomi Pertanian Fakultas Pertanian Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/agrimansion.v25i1.1648

Abstract

Mount Sasak Community Forest (HKm) has the potential that can be utilized by the surrounding community through the utilization of Non-Timber Forest Products (NTFPs). The Wahana Kawasan Forest Farmer Group (KTH) is one of the groups that utilizes and manages NTFPs in the form of candlenuts in the Mount Sasak HKm. In the production and utilization activities of candlenut, it will focus on marketing channels as a form of effort made by a person or marketing institution to achieve a level of marketing success. The method used in this research is descriptive with a total of 32 respondents. The sampling technique was carried out by purposive sampling method. Determination of the number of respondents for intermediary traders is determined by the snowball sampling method. The results showed that there were 2 marketing channels. The marketing margin of marketing channels 1 and 2 has the same value of Rp. 2,000/kg. Meanwhile, the farmer's share obtained by marketing channel 1 amounted to 67% and marketing channel 2 amounted to 83%. The level of marketing efficiency in channel 1 of 7.8% indicates a less efficient marketing channel and marketing channel 2 of 3.7% indicates an efficient marketing channel.