Characteristics of Wood and Charcoal from <i>Eucalyptus</i> clones

Silva, Macksuel Fernandes da; Fortes, Myla Medeiros; Sette Junior, Carlos Roberto

doi:10.1590/2179-8087.035016

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Original Article, Wood Science and Technology • Floresta Ambient. 25 (3) • 2018 • https://doi.org/10.1590/2179-8087.035016 copy

Characteristics of Wood and Charcoal from Eucalyptus clones

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The characteristics of wood and charcoal depend on the genetic material and the sampling position on the tree trunk. The objective of this study was to evaluate the effect of clone and longitudinal position on the characteristics of wood and charcoal of Eucalyptus grandis x Eucalyptus urophylla. Specimens belonging to I144 and GG100 clones both at seven years of age were felled and mechanically processed for disc removal at different longitudinal positions of 0, 3, 6, 9, 12 and 15 meters from the ground. The wood and charcoal physical and energetic characteristics were evaluated according to the different longitudinal positions. The genetic material and longitudinal position influenced the wood and charcoal characteristics. Sampling positions on the tree trunks can be considered for the energetic direction of “in natura” or carbonized biomass.

Keywords:
bioenergy; longitudinal variation; GG100; I144

VF	d.f.	Charcoal			Wood
		ARD	HHV	ED	BD	HHV	ED
		(g.cm^-3)	(kcal.kg^-1)	(Gcal.m^-3)	(g.cm^-3)	(kcal.kg^-1)	(Gcal.m^-3)
Clone	1	0.008945 ^* * 0.05.	232	0.3546 ^ 0.01;	0.03349 ^* ***** 0.001;	380	0.7316 ^ 0.01;
Plot residue	4	0.000432	105	0.0106	0.00032	11645	0.0145
GG100	-	0.37 (6.8)	6830 (5.6)	2.48 (8.4)	0.50 (3.1)	4727 (3.3)	2.37 (4.7)
I144	-	0.33 (7.8)	6891 (7.2)	2.27 (12.8)	0.44 (3.8)	4733 (4.5)	2.09 (5.0)
Position	5	0.0017475 ^* * 0.05.	364477 ^* ***** 0.001;	0.19596 ^* * 0.05.	0.0002335 ^* * 0.05.	51176 ^* ***** 0.001;	0.028711 ^* ***** 0.001;
Clone x Position	5	0.0001506	29739	0.00833	0.00008517	12212	0.003994
Sub-plot residue	20	0.0005534	82	0.05641	0.00004357	6187	0.002519

VF	d.f.	Charcoal			GY (%)	Wood
VF	d.f.	Ash (%)	Volatile (%)	Carbon (%)	GY (%)	Ash (%)	Volatile (%)	Carbon (%)
Clone	1	1.655 ^ 0.01;	58.65 ^ 0.01;	79.89 ^* ***** 0.001;	7.385	0.06534 ^* * 0.05.	0.0003	0.0742
Plot residue	4	0.026	1.1	0.92	20.77	0.00797	0.4383	0.3956
GG100	-	1.00 (18.2)	29.50 (7.1)	69.49 (3.0)	30.99 (14.0)	0.20 (13.2)	83.19 (2.0)	16.62 (7.0)
I144	-	0.62 (15.3)	26.95 (9.6)	72.43 (6.0)	30.12 (9.0)	0.13 (8.9)	83.18 (1.0)	16.69 (5.0)
Position	5	0.30894 ^ 0.01;	36.68 ^* ***** 0.001;	40.13 ^* ***** 0.001;	3.27	0.13723 ^* ***** 0.001;	2.2661 ^* * 0.05.	3.1187 ^ 0.01;
Clone x Position	5	0.14822 ^* * 0.05.	31.66 ^* ***** 0.001;	30.85 ^* ***** 0.001;	9.16	0.07697 ^* ***** 0.001;	1.5473	2.0302
Sub-plot residue	20	0.04804	0.46	0.46	15.88	0.01108	0.8637	0.8627

Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro Rodovia BR 465 Km 7, CEP 23897-000, Tel.: (21) 2682 0558 | (21) 3787-4033 - Seropédica - RJ - Brazil
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[1] *Carlos Roberto Sette JuniorDepartamento de Engenharia Florestal, Universidade Federal de Goiás – UFG, Rodovia Goiânia, Nova Veneza, CEP 74001-970, Goiânia, GO, Brasil e-mail: crsettejr@hotmail.com