Fath Alrhman Awad Ahmed Younis, Róbert Németh, Fath Alrhman, Awad Ahmed, Younis
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引用次数: 0
摘要
本论文研究了 Sclerocarya birrea 和 Anogeissus leiocarpus 树种内部和树种之间含水率的变化,以及这些树种新伐木材每立方米的绿色密度。这项研究中的树木生长在苏丹西科尔多凡州。砍伐后,从树干长度(10%、50% 和 90%)范围内的每个垂直位置采集了不同大小的小方块样本(n=10)并进行称重。结果显示,桦木的平均 MC 值和新伐木材的绿色密度分别为 109.97% 和 686 kg/m3,而雷公藤的数值分别为 35.55% 和 980 kg/m3。此外,方差分析结果表明,只有树种之间的 MC [%] 有显著差异。相反,在树干长度的垂直位置上,两个树种的 MC [%] 没有明显差异。
Variation in Moisture Content and Density Whitin and Among Freshly Felled Sclerocarya birrea and Anogeissus leiocarpus
This papaer studiess the variations in moisture content within and among tree species of Sclerocarya birrea and Anogeissus leiocarpus, as well as the green density of a cubic meter of freshly felled wood from this species. The trees included in this research grew in Western Kordofan State, Sudan. Following their felling, tiny square samples of varying sizes (n=10) were gathered and weighed from each vertical position within the bole length (10, 50, and 90%). The results show that the average MC and the green density of the freshly felled wood were 109.97% and 686 kg/m3 for S. birrea, while the values of A. leiocarpus were 35.55% and 980 kg/m3, respectively. Furthermore, the findings of the analysis of variance revealed that the MC [%] varied significantly only between the tree species. Conversely, there was no significant difference in MC [%] within the vertical positions of the bole length for either species.