文献类型：期刊文献

英文题名：Variation of microfibril angle and density in moso bamboo (Phyllostachys pubescens)

作者：Wang, X.Q.[1] Li, X.Z.[1] Ren, H.Q.[1]

第一作者：王小青

通信作者：Ren, H. Q.|[a0005cdec0a97d376db6d]任海青;

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China

年份：2010

卷号：22

期号：1

起止页码：88-96

外文期刊名：Journal of Tropical Forest Science

收录：EI(收录号：20100912742232);Scopus(收录号：2-s2.0-77449158300)

语种：英文

外文关键词：Bamboo

摘要：The variation patterns of microfibril angle (MFA) and air-dry density with respect to age as well as to different vertical and horizontal positions within the culm were investigated in moso bamboo (Phyllostachys pubescens) of different ages grown in south-eastern China. X-ray diffraction was used to determine the MFA of the culms. Although the analysis of variance indicated that age, height location as well as horizontal layer had significant effects on MFA, the mean MFA varied slightly from 8.17° to 10.51°, regardless of age or positions within the culm, with a coefficient of variation of only 6.7%. The air-dry density varied considerably with age and also within the culm, with the mean values ranging from 0.41 to 1.14 g cm-3. The air-dry density increased substantially during the initial four years of growth but was almost constant at older ages. The outer layers of the culm had significantly higher density than the inner layers and the top portion of the culm showed generally higher density than the lower portions.