| 摘要: |
| 以天然欧洲山杨 Populus tremula 为试材，采用相关分析及多重比较方法，研究各个器官干物质热值、灰分含量、灰分热值的相关性及差异性。结果表明：树干热值及灰分含量由上至下逐渐下降，树根的热值及灰分含量表现为细根 > 根茎 > 粗根。各器官干物质热值、灰分含量、去灰分热值大小顺序分别为：叶 > 根 > 干 > 枝 > 皮，干 > 根 > 枝 > 皮 > 叶，叶 > 根 > 枝 > 皮 > 干，叶与枝、叶与皮之间干物质热值存在显著差异，叶与皮、叶与干、枝与皮、枝与干、皮与干之间的灰分含量存在显著性差异，叶与枝、叶与皮、叶与干、枝与干、皮与干的去灰分热值存在显著性差异。全株平均干物质热值、灰分含量、去灰分热值分别为 18.316 4 kJ · g-1、4.399 6%、19.171 5 kJ · g-1，树干、树根的干物质热值与灰分含量呈现不显著的负相关关系，全株干物质热值与去灰分热值存在极显著相关，与灰分含量呈现显著性负相关。欧洲山杨的干物质热值高于世界陆地植物平均热值，可作为新疆区域备选能源植物。 |
| 关键词: 欧洲山杨 干物质热值 灰分含量 去灰分热值 |
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| 基金项目:新疆维吾尔自治区公益性科研院所基本科研业务费专项资金 (KY2021038，KY2021037，KY2020019) |
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| Study on Calorific Value and Ash Content of Populus tremula |
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Zhu Yali1, Zhou Gang2, Zhang Huifang3, Zhang Jinglu3, Dlixiati.baoerhan3
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1.Modern Forestry Research Institute of Xinjiang Academy of Forestry;2.Xinjiang Forestry Planning Institute Urumqi;3..Modern Forestry Research Institute of Xinjiang Academy of Forestry
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| Abstract: |
| Using the Populus tremula as the test material, the correlation and difference of the gross caloric values, ash content and ash calorific value of each organ were studied by correlation and multiple comparison analysis of variance. The results showed that the caloric value and ash content of the trunk decreased gradually from top to bottom, and the calorific value and ash content of roots were in the sequence of fine roots > rhizomes > coarse roots. The order of gross caloric value, ash content and ash free calorific value of each organ was as follows: leaf > root > trunk >branch >bark, trunk > root > branch > bark > leaf, leaf > root > branch > bark>trunk. There were significant differences in the calorific values of dry matter between leaf and branch, leaf and
bark. There were significant differences in the ash content between leaf and bark, leaf and trunk, branch and bark, branch and trunk,bark and trunk.There were significant differences in the ash free calorific value between leaf and branch, leaf and bark, leaf and trunk, branch and trunk, bark and trunk. There were average gross caloric value, ash content and ash free calorific value of the whole plant were 18.316 4 kJ · g-1, 4.399 6%,19.171 5 kJ · g-1.There was no significant negative correlation between gross caloric value and ash content of trunk and roots. The gross caloric value of whole plant was significantly correlated with the ash free calorific value, and had a significant negative correlation with ash content. It was higher than the average calorific value of terrestrial plants in the world.,which can be used as an alternative energy plant in Xinjiang region. |
| Key words: Populus tremula gross caloric value ash content ash free calorific value |
