scholarly journals PROSPEK PEMANFAATAN KAYU KARET SEBAGAI BAHAN BAKU PEMBUATAN PULP

2019 ◽  
Vol 1 (1) ◽  
pp. 47-60
Author(s):  
Afrizal Vachlepi, M.T
Keyword(s):  
Paraserianthes Falcataria ◽  
Anthocephalus Cadamba

Kebutuhan kayu hutan sebagai bahan baku industri mengalami peningkatan termasuk untuk industri pembuatan pulp dan kertas. Sementara itu, pasokan kayu hutan justru mengalami penurunan akibat semakin terbatasnya areal hutan alam. Oleh karena itu perlu alternatif pengganti bahan baku kayu yang bukan berasal dari hutan alam dan mempunyai nilai ekonomi rendah seperti kayu karet dari peremajaan perkebunan karet. Potensi kayu karet sangat besar akibat dari tingginya jumlah tanaman karet tua yang harus diremajakan terutama di perkebunan rakyat. Pulp adalah bahan berserat hasil pengolahan lignoselulosa dan digunakan sebagai bahan baku pembuatan kertas, rayon (serat buatan) dan derivat selulosa lainnya. Pulp merupakan produk antara dalam industri pembuatan kertas. Bahan baku pembuatan pulp berasal dari bahan berselulosa seperti kayu dan bukan kayu. Kayu karet mempunyai kandungan holoselulosa yang cukup tinggi sekitar 67% dengan ά-selulosa sekitar 40% sehingga dapat dimanfaatkan sebagai bahan baku penghasil pulp. Mutu serat pada kayu karet lebih baik dibandingkan dengan kayu akasia sehingga lebih cocok untuk dijadikan bahan baku pulp dan kertas. Proses pembuatan pulp dapat dilakukan dengan berbagai cara, seperti mekanis, kimia dan semi kimia.Hasil penelitian membuktikan bahwa secara umum kayu karet dapat digunakan sebagai bahan baku alternatif untuk pembuatan pulp dan kertas. Kayu karet dapat diproses sendiri sebagai bahan baku pembuatan pulp atau bisa juga dicampurkan dengan kayudari hutan tanaman industri (HTI) seperti pinus, sengon (Paraserianthes falcataria) dan jabon (Anthocephalus cadamba).

Radial variation of wood properties of Sengon (Paraserianthes falcataria) and Jabon (Anthocephalus cadamba)

2013 ◽  
Vol 10 (2) ◽  
pp. 110-117 ◽  
Author(s):  
Esi Fajriani ◽  
Julien Ruelle ◽  
Jana Dlouha ◽  
Meriem Fournier ◽  
Yusuf Sudo Hadi ◽  
...  
Keyword(s):  
Wood Properties ◽  
Radial Variation ◽  
Paraserianthes Falcataria ◽  
Anthocephalus Cadamba

scholarly journals Influence of understorey diversity on wildlife at the coal mining reclamation area in South Kalimantan, Indonesia

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
Yusanto Nugroho ◽  
SUYANTO SUYANTO ◽  
SUPANDI SUPANDI ◽  
Jeriels Matatula ◽  
Pandu Wirabuana
Keyword(s):  
Coal Mining ◽  
Environmental Quality ◽  
Dominant Species ◽  
Bird Species ◽  
Paraserianthes Falcataria ◽  
Ecological Survey ◽  
Number Of Species ◽  
Reclamation Area ◽  
Anthocephalus Cadamba

Abstract. Nugroho Y, Supandi, Suyanto, Matatula J, Wirabuana PYAP. 2021. Influence of understorey diversity on wildlife at the coal mining reclamation area in South Kalimantan, Indonesia. Biodiversitas 22: 3736-3743. The existence of understorey at the coal mining reclamation area provides an important contribution to improve the environmental quality, especially the wildlife presence. Therefore, this study aims to determine the influence of understorey diversity on the wildlife at the coal mining reclamation area managed by the PT Borneo Indobara, South Kalimantan. This study used an ecological survey conducted in three reclamation areas classified based on the dominant species supporting the process, namely Paraserianthes falcataria (L-1), Anthocephalus cadamba (L-2), and a mixture of both species (L-3). The data were collected in two observation periods, namely August 2019 and August 2020. The results showed that at the first observation, ten families of understorey were observed from the survey and the highest diversity was recorded in L-2 (H'=1.71), followed by L-1 (H'=1.54), and L-3 (H'=1.27). Meanwhile, the wildlife in the first periods was only 6 species consisting of 3 birds, 2 reptiles, and 1 mammal. The number of species from every site was relatively equal at the first observation. In the second observation, the diversity of understorey considerably increased with approximately 22 families from the inventory. The highest understorey diversity in this observation was recorded in L-1 (H'=3.30), L-2 (H'=3.05), and L-3 (H'=3.04). Also, the higher understorey diversity was followed by the higher wildlife with 29 species, which consists of 26 birds, 2 reptiles, and 1 mammal. The highest appearance of bird species was in the L-1 with approximately 19 species, while the number of birds in L-2 and L-3 was relatively similar with approximately 15 species. Based on these results, the understorey diversity significantly contributes to improving the wildlife diversity at the coal mining reclamation area, primarily from the bird species.

UTILIZATION OF RAWAPENING PEAT FOR NUTRIENT BLOCK AS A MEDIA NURSERIES Anthocephalus cadaba and Paraserianthes falcataria

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
E. Hanggari Sittadewi., dkk
Keyword(s):  
Plant Growth ◽  
Physical Properties ◽  
Environmental Degradation ◽  
Leaf Growth ◽  
Rehabilitation Program ◽  
Paraserianthes Falcataria ◽  
Land Rehabilitation ◽  
Mining Areas ◽  
Growing Medium ◽  
The Media

Nutrient Block is a growing medium product in the form of a square (25 x 25 cm) or cylindrical (diameter = 20 cm, height = 25 cm) made of peat which has been composted, plus adhesive gypsum or tapioca waste. Nutrient Block is designed to support the post mining land rehabilitation program that is now threatening the environmental degradation in mining areas. Nutrient Block products has been proved good for growth because of the media in addition to having physical properties that are capable of storing large amounts of water, contain enough nutrients in the form available to plants,so it can support plant growth. Results of the Nutrient Block application test to Jabon (Anthocephalus cadaba) and Sengon (Paraserianthes falcataria) plants showed that good performance, both plant height and diameter of trees and leaf growth in plants Jabon appear healthy and getting wider.keywords: nutrient block, post-mining land rehabilitation. Paraserianthes falcataria, Anthocephalus cadaba

MITIGASI LAHAN TERDEGRADASI AKIBAT PENAMBANGAN MELALUI REVEGETASI

2019 ◽  
Vol 11 (2) ◽  
pp. 50-60
Author(s):  
E. Hanggari Sittadewi
Keyword(s):  
Gliricidia Sepium ◽  
Paraserianthes Falcataria ◽  
Fast Growing ◽  
Sesbania Grandiflora

Salah satu dampak negatif dari aktifitas penambangan adalah terjadinya degradasi lahan. Degradasi lahan ditandai dengan menurunnya kondisi fisik, kimia dan biologi. Mitigasi atau upaya pencegahan harus dilakukan agar tidak berlanjut ke kondisi yang lebih parah. Revegetasi adalah langkah yang dapat dilakukan untuk mitigasi lahan terdegradasi tersebut. Keberhasilan revegetasi tergantung pada pemilihan vegetasi yang adaptif dan cepat tumbuh sesuai dengan karakteristik tanah, iklim dan kegiatan pasca  penambangan. Selain itu perbaikan kondisi fisik, kimia dan biologi lahan juga ikut menentukan keberhasilan revegetasi. Beberapa jenis tanaman cepat tumbuh (Fast Growing Plant) yang umum digunakan untuk revegetasi adalah sengon laut (Paraserianthes falcataria), akasia (Acasia mangium, Acasia crassicarpa), Lamtoro (Leucaena glauca), turi (Sesbania grandiflora), gamal (Gliricidia sepium). Selain tanaman cepat tumbuh, tanaman lokal juga menjadi pilihan untuk revegetasi. Keberhasilan revegetasi akan meningkatkan kadar bahan organik dan memperbaiki siklus hara serta meningkatkan jumlah dan aktifitas mikroba. Hal ini akan memperbaiki kondisi fisik, kimia dan biologi sehingga degradasi lahan pasca penambangan tidak terjadi lebih buruk.

scholarly journals Color change and termite resistance of fast-growing tropical woods treated with kesambi (Schleichera oleosa) smoke

2020 ◽  
Vol 66 (1) ◽  
Author(s):  
Yusuf Sudo Hadi ◽  
Muh Yusram Massijaya ◽  
Dodi Nandika ◽  
Wa Ode Muliastuty Arsyad ◽  
Imam Busyra Abdillah ◽  
...  
Keyword(s):  
Color Change ◽  
Acacia Mangium ◽  
Chemical Compounds ◽  
Subterranean Termite ◽  
Subterranean Termites ◽  
Schleichera Oleosa ◽  
Termite Attack ◽  
Wood Resistance ◽  
Tropical Woods ◽  
Anthocephalus Cadamba

Abstract Smoke treatment can be used to enhance wood resistance to subterranean termite attack. In this study, kesambi (Schleichera oleosa) wood was pyrolyzed to produce charcoal. The smoke produced as a by-product of pyrolysis was used to treat sengon (Falcataria moluccana), jabon (Anthocephalus cadamba), mangium (Acacia mangium), and pine (Pinus merkusii) wood samples for 1, 2, or 3 weeks. Following the smoke treatment, the wood specimens were exposed to subterranean termites (Coptotermes curvignathus Holmgren) according to the Indonesian standard 7207-2014 in a laboratory. The color change caused by smoke treatment was observed, and chemical analysis of smoke was also done. The results showed that chemical compounds of kesambi smoke predominantly consisted of acetic acid, phenol, ketones, amines, and benzene. The color of smoked wood became darker, less yellow, and a little redder, while a longer smoking period produced a darker color which was more resistant to termite attack. Smoke treatment enhanced the resistance of wood to subterranean termite attack, and the resistance levels were not significantly different based on the duration of the smoke treatment.

Uromycladium falcatarium sp. nov., the cause of gall rust on Paraserianthes falcataria in south-east Asia

2014 ◽  
Vol 44 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Chanintorn Doungsa-ard ◽  
Alistair R. McTaggart ◽  
Andrew D. W. Geering ◽  
Teresita U. Dalisay ◽  
Jane Ray ◽  
...  
Keyword(s):  
East Asia ◽  
South East Asia ◽  
Paraserianthes Falcataria

Flexural, in-plane shear and nail shear properties of falcataria-rubberwood laminated veneer board for flooring

Holzforschung ◽  
2008 ◽  
Vol 62 (6) ◽  
Author(s):  
Kweonhwan Hwang ◽  
EeDing Wong ◽  
Kohei Komatsu
Keyword(s):  
Radiata Pine ◽  
Strength Properties ◽  
Larix Leptolepis ◽  
Structural Components ◽  
Shear Tests ◽  
Plane Shear ◽  
Paraserianthes Falcataria ◽  
Shear Properties ◽  
Laminated Veneer Lumber ◽  
Good Potential

Abstract A research project has been conducted to develop structural laminated veneer lumber products from tropical wood, and to evaluate their feasibility for the structural components of wooden houses. As part of this project, we investigated the flexural, in-plane shear, and nail shear properties of laminated veneer board (LVB) manufactured from a combination of falcataria (Paraserianthes falcataria) and rubberwood (Hevea brasiliensis) for flooring applications. In addition, 11-ply larch (Larix leptolepis) and 7-ply radiata pine (Pinus radiata) plywood were investigated as controls. Larch plywood, bonded with phenol-based adhesive, showed the best strength properties in bending and shear tests, whereas the 12-ply (28 mm thick) resorcinol-based resin-bonded LVB had the highest ductility in nail shear. The LVB also had better bending and shear properties than radiata pine plywood. In conclusion, falcataria-rubberwood LVB demonstrated good potential to substitute larch plywood and radiata pine plywood in flooring applications.

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