大兴安岭小径级兴安落叶松灰分含量分析
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摘要
以大兴安岭小径级兴安落叶松(Larix gmelinii)为研究对象,采用外业调查和室内燃烧相结合的实验方法,对大兴安岭小径级兴安落叶松的树皮、树干、树冠等各部位的灰分含量做了测定,探讨不同部位灰分含量不同的原因。实验结果显示小径级兴安落叶松不同部位灰分含量是不同的,总体表现为树冠>树皮>树干。树冠部分灰分含量最高,且从树冠的上、中、下依次增大。树皮灰分含量其次,从基部开始,随着高度的增加,灰分含量呈增大趋势。树干部分灰分含量最小,基部心材灰分含量是整株中最低的。
Taking small-diameter Larix gmelinii as the research object,the ash content of parts from Larix gmelinii,such as the bark,trunk and crown were determined by adopting the method of combining field investigation with indoor combustion,reasons were discussed for the differrent ash content of different parts. Results showed that the ash content in different parts of Larix gmelinii was different,generally,the ash content of different parts of Larix gmelinii was as follows: crown >bark > trunk. The ash content of crown was the highest,and increased gradually from the top,medium to bottom,followed by the ash content of bark,increased with the increase of height from the stem base. The ash content of trunks was the lowest,and the ash content of basal heartwood was the lowest in the whole tree.
Taking small-diameter Larix gmelinii as the research object,the ash content of parts from Larix gmelinii,such as the bark,trunk and crown were determined by adopting the method of combining field investigation with indoor combustion,reasons were discussed for the differrent ash content of different parts. Results showed that the ash content in different parts of Larix gmelinii was different,generally,the ash content of different parts of Larix gmelinii was as follows: crown >bark > trunk. The ash content of crown was the highest,and increased gradually from the top,medium to bottom,followed by the ash content of bark,increased with the increase of height from the stem base. The ash content of trunks was the lowest,and the ash content of basal heartwood was the lowest in the whole tree.
引文
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