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慈竹生长过程纤维素、木质素及灰分动态积累

Dynamic Accumulation of Cellulose,Lignin and Ash Content During the Growth Process of Bambusa emeiensis

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以当年生不同生长高度的慈竹为研究对象,探讨慈竹生长过程中纤维素、木质素和灰分含量的积累规律。结果表明:慈竹不同生长高度纤维素含量顶、中部变化趋势均以对数方式增长;基部纤维素含量和茎秆纤维素总含量变化趋势都呈“S型”曲线;各部位木质素含量变化趋势总体呈倒“S型”曲线,且不同高度间的木质素含量的差异达显著水平;随着生长高度的增高,茎秆顶部、基部灰分含量以及茎秆灰分总含量总体呈倒“S型”曲线变化,中部灰分含量总体呈“S型”曲线变化。纤维素总含量、木质素总含量的积累分别集中在茎秆高度为150~800、30~800 cm这个生长时期;灰分总量在300~800 cm保持较高的水平。
The annual Bambusa emeiensis with different growth height was selected as the research object and the dynamic accumula -tion of cellulose ,lignin and ash content was explored.The results showed that the change of cellulose content at the top and middle section was in logarithmic growth.The change of cellulose content from the base and total cellulose content from the stalk was in S type curve.The change of lignin content trends from the different sections trended to the inverted S curve .The difference of lignin content from the stalk with the different height was significant.With the increase of height ,the changes of ash content from the base and top parts and total ash content from stalk trended to the inverted S curve ,the change of ash content from the middle parts trended to the S type curve.The accumulation of total cellulose ,lignin content and ash content mainly concentrated in the growth period of 150 cm to 800 cm,30 cm to 800 cm and 300 cm to 800 cm,respectively.

Bambusa emeiensiscelluloseligninash

冯芳敏、胡尚连、周振华、曹颖、卢学琴、徐刚、龙志坚、任鹏

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西南科技大学生命科学与工程学院,四川绵阳621010

慈竹 纤维素 木质素 灰分

四川省应用基础研究基金资助项目四川省生物质资源利用与改性工程技术研究中心资助项目

2013 JY018213zxsk01

2015

福建林业科技
福建省林学会,福建省林业科学研究院

福建林业科技

影响因子:0.528
ISSN:1002-7351
年,卷(期):2015.(1)
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