scholarly journals Beberapa Sifat Mekanis Kayu Jenis Meranti Merah (Shorea leprosula Miq) yang Berasal dari Hutan Bekas Terbakar

Buletin Loupe ◽  
2021 ◽  
Vol 17 (01) ◽  
pp. 51-56
Author(s):  
Iskandar
Keyword(s):  
Shorea Leprosula

Kurangnya informasi mengenai perubahan sifat kayu dari pohon bekas kebakaran hutan juga merupakan pertimbangan khusus yang menyebabkan belum dimanfaatkannya kayu bekas kebakaran hutan. Konsumen dalam hal ini perusahaan pengolahan kayu masih berpendapat bahwa kayu dari hutan bekas kebakaran sifat kayunya akan musnah atau berkurang. Dalam penelitian ini akan diteliti sifat-sifat mekanika kayu setelah terjadi kebakaran hutan, dimana akibat kebakaran hutan semua pohon terbakar tetapi ada yang bisa hidup dan ada juga yang langsung mati. Agar permasalahan tidak terlalu meluas, maka disini diperiksa pengaruhnya hanya pada jenis Meranti Merah (Shorea leprosula). Kesimpulan dari penelitian ini adalah sebagai berikut: 1. Ketangguhan kayu Meranti Merah (Shorea Leprosula Miq) tidak berubah secara signifikan akibat kebakaran hutan, 2. Kekuatan lentur dan ketahanan patah  kayu Meranti Merah (Shorea Leprosula Miq) nilainya berkurang secara signifikan akibat kebakaran hutan yang terjadi 3. Hal tersebut di atas terjadi karena mati dan keringnya beberapa sel penyusun kayu akibat pengaruh panas, sehingga kayu cenderung bersifat keras.

scholarly journals CORRELATION BETWEEN WOOD DENSITY AND FIBER LENGTH WITH ESSENTIAL MACRO-NUTRIENTS ON BASE OF STEM OF Shorea leprosula and Shorea parvifolia

2015 ◽  
Vol 2 (1) ◽  
pp. 625
Author(s):  
Rizki Maharani ◽  
Andrian Fernandes
Keyword(s):  
Wood Density ◽  
Fiber Length ◽  
Length Distribution ◽  
Density Measurement ◽  
Nutrient Elements ◽  
Observation Data ◽  
Stem Base ◽  
Stem Wood ◽  
Shorea Leprosula ◽  
Macro Nutrients

<p>S. leprosula and S. parvifolia are widely developed as source of high quality wood. The quality of wood could be affected by nutrient elements. It is important to measure the nutrients contained in tree stem including wood density and fiber length due to their influence in tree growth. This research aims to know correlation between wood density and fiber length with distribution of essential macro-nutrients; N, P and K on stem base of S. leprosula and S. parvifolia trees. Wood density measurement followed DIN 2135 standard method, fiber length measurement followed FPL method, and nutrient measurement used AAS method. Further, the observation data was analyzed using SPSS 16 software. Wood density and fiber length on stem bases of both of tree species tended to increase radially from section nearby the pith to section nearby the bark respectively. Wood density of S. leprosula ranged from 0.333-0.362 with 1.279-1.343 µm in fiber length, while wood density of S. parvifolia ranged from 0.285-0.346 with 1.497-1.805 µm in fiber length. Distribution of nutrient N, P and K of stem base from pith to bark also tended to increase. On S. leprosula, nutrient elements N, P, K had significant correlation with wood density and fiber length. On S parvifolia, nutrient elements N, P, K had a significant correlation with wood density. Meanwhile, nutrient elements N, P, K had a non significant correlation with fiber length.</p><p><br /><strong>Keywords</strong> : Shorea leprosula, Shorea parvifolia, base of the stem, wood quality distribution, nutrient distribution.</p>

Wood Formation in Two Species of Dipterocarpaceae in Peninsular Malaysia

IAWA Journal ◽  
1995 ◽  
Vol 16 (4) ◽  
pp. 371-384 ◽  
Author(s):  
Ute Sass ◽  
Wulf Killmann ◽  
Dieter Eckstein
Keyword(s):  
Callus Formation ◽  
Continuous Process ◽  
Cambial Activity ◽  
Wood Formation ◽  
Peninsular Malaysia ◽  
High Variability ◽  
Radial Increment ◽  
Technical Problems ◽  
Stem Wood ◽  
Shorea Leprosula

The wood formation of kapur (Dryobalanops sumatrensis) and tembaga (Shorea leprosula), growing under a weak seasonal climate in West Malaysia was studied over a four-year period using cambium marking. Technical problems arose from the heavy callus formation due to the wounding of the cambium, the small radial increment, and the high variability of the cambial activity around and along the stem. Wood formation in the two tree species appears to be a continuous process and not related to seasonality in rainfall and phenology.

Longitudinal Variation in Selected Wood Properties of Naturally and Plantation Grown Light Red Meranti (Shorea Leprosula and S. Parvifolia, Dipterocarpaceae)

IAWA Journal ◽  
1996 ◽  
Vol 17 (1) ◽  
pp. 5-14 ◽  
Author(s):  
Monique T. M. Bosman
Keyword(s):  
Specific Gravity ◽  
Wood Properties ◽  
Longitudinal Variation ◽  
Fibre Wall ◽  
Percentage Area ◽  
Resin Canals ◽  
Shorea Leprosula ◽  
Area Percentage

Longitudinal variation in fibre wall percentage, area percentage of vesse ls and resin canals and specific gravity was studied at three to five height levels in three naturally and five plantation grown trees of Light Red Meranti (Shorea leprosula and S. parvifolia).

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