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首页> 外文期刊>日本土壤肥料学雑誌 >Changes in elementary composition and humus composition in the burning process of Susuki (Miscanthus sinensis A.) plants at various temperatures
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Changes in elementary composition and humus composition in the burning process of Susuki (Miscanthus sinensis A.) plants at various temperatures

机译：在各种温度下铃木（Miscanthus Sinensis A.）植物燃烧过程中基本成分和腐殖质组成的变化

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摘要

The burning of susuki plants at various temperatures (150, 200, 250, 300, 350, 400 and 450 deg C) was investigated, giving special attention to the elementary composition and humus composition. The results showed that: (1) when susuki samples (non-heated samples) were heated at 150 and 200 deg C, the samples were not burned and changed to a brown colour due to heat applied (non-burned samples). At 250 deg C or higher, the samples were burned, and consequently charred residues and ash were produced (burned samples); (2) the ratios of amounts of dry material, carbon, hydrogen and oxygen remaining in the heated samples, as compared to those originally present in the non-heated samples, were much lower in the burned samples than in the non-burned samples. Sucha relationship was not found for nitrogen or ash; (3) an elementary analysis indicated that the carbon content (ash-free oven-dried basis) tended to increase with the increase of heating temperature, but the reverse was true for oxygen content. There was no regular relationship between the hydrogen and nitrogen contents and the heating temperature. The atomic [H]:[C] and [O]:[C] ratios in the burned samples were much lower than those in the non-burned and non-heated samples. The burning of susuki plants was mainly arranged in the direction of dehydration on the [H]:[C] versus [O]:[C] diagram; (4) humus analysis indicated that the extracted humus, humic acid and fulvic acid contents (ash-free oven-dried basis) in the burned samples were much lower thanthose in the non-burned samples. There was no relationship between the total humus content and heating temperature; and (5) the humic acids extracted from the non-heated and non-burned samples were of the Rp type. The humic acids in the burned samples were A type, and the amount of acid decreased with the increase of heating temperature.
机译：研究了在各种温度（150,200,250,300,350,400和450℃）的各种温度下燃烧，特别注意初学组成和腐殖质组成。结果表明：（1）当在150和200℃加热Susuki样品（未加热样品）时，样品未燃烧并由于施加的热量而改变为棕色（非燃烧样品）。在250℃或更高时，样品被烧坏，因此产生烧焦的残基和灰分（燃烧样品）; （2）与最初存在于未加热样品中的热水样品中残留的样品中残留在加热样品中的干燥材料，碳，氢气和氧气量的比例比在未燃烧的样品中均多低得多。没有找到氮气或灰烬的关系; （3）基本分析表明，随着加热温度的增加，碳含量（无灰烘箱干燥的基础）往往增加，但氧含量为真实。氢和氮含量与加热温度之间没有常规关系。燃烧样品中的原子[H]：[C]和[O]：[C]比率远低于非燃烧和未加热样品中的比率。斯昆基植物的燃烧主要是在[H]的脱水方向上排列：[C]对[O]：[C]图; （4）腐殖质分析表明，在燃烧的样品中提取的腐殖质，腐殖酸和富含烟酸酸含量（无灰烘箱干燥）在非燃烧样品中较低。腐殖质含量和加热温度之间没有关系; （5）从未加热和非燃烧样品中提取的腐殖酸是RP型的。燃烧样品中的腐殖酸是一种类型，随着加热温度的增加而降低酸的量。

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