[1]邱坚,杨燕*.SEMEDXA法分析山油柑木材中硅元素的分布[J].西北林学院学报,2007,22(03):148-151.
 QIU Jian,YANG Yan.The Distribution of Silicon in Acronychia pedunculata Analysed by SEMEDXA[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2007,22(03):148-151.
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SEMEDXA法分析山油柑木材中硅元素的分布()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第22卷
期数:
2007年03期
页码:
148-151
栏目:
木材科学
出版日期:
2007-06-30

文章信息/Info

Title:
The Distribution of Silicon in Acronychia pedunculata Analysed by SEMEDXA
作者:
邱坚杨燕*
西南林学院 木质科学与装饰工程学院,云南 昆明 650224
Author(s):
QIU JianYANG Yan
Faculty of Wood Science and Decoration Engineering, Southwest Forestry College, Kunming,Yunnan  650224,China
关键词:
硅石山油柑木材扫描电镜Xray能谱法形态分布含量
Keywords:
siliconAcronychia pedunculata SEMEDXAmorphologicaldistributioncontent
分类号:
S781.41
文献标志码:
A
摘要:
采用SEMEDXA法对山油柑(Acronychia pedunculata)木材轴向分布、径向分布中硅石的分布、形态、纳米结构以及硅元素含量进行了分析。结果表明(1)山油柑木材中硅石主要分布在木射线细胞、导管细胞以及轴向薄壁细胞,呈圆形、椭圆形;(2)硅石中硅元素含量达30%以上,且随着树干高度的增加,硅石中硅元素的含量呈递减趋势。树干基部硅元素含量为30.20%,1.3 m 处硅元素含量为28.69%,树梢处硅元素含量为20.34%;(3)硅石直径为200-350 nm ,其中树干基部1.3 m处和树梢处硅石直径分别为217、203、179 nm左右。
Abstract:
The distribution,morphological,content and nanostructure of silica in different axial and radial distributions in the timber of Acronychia pedunculata were investigated. The results were as follow(1) Silica were deposided in the ray cell, vessel axial parenchyma with circular or oval shape;(2) The content of silicon accounted for over 30% of all the elements in silica,and it decreased with the increase of tree height. The Si contents in the base of A. pedunculata wood was 30.20%, 28.69% in the 1.3 m part of A. pedunculata wood and 20.34% in the middle part of A pedunculata wood;(3)The nanostructure of silica was between 200 nm to 350 nm. The silica nanostructure in the base of A. pedunculata wood was 217 nm, 203 nm in the 1.3 m part of A.pedunculata wood and 179 nm in the middle part of A. pedunculata wood.

参考文献/References:

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[11]Wllis.Cellular ultrastructure of woody plants[M].W.A.Cote Jred.Syracuse University Press,1965.181189.0][CDS46]=0][FL(K2](上接第99页)=3结论N、P、K3种植物生长营养元素均对俄罗斯大果沙棘的苗木生长具有明显的影响。其中,苗高影响效应为:N>P>K,地径为N>K>P。P、N、K对俄罗斯大果沙棘苗高增长具有较为明显的交互影响,P、K交互作用不显著。在该土壤肥力条件下,俄罗斯大果沙棘嫩枝扦插苗的最适施肥范围为N: 253.8~303.17 kg·hm-2,P: 153.23~194.57 kg·hm-2,K:140.13~144.28 kg·hm-2,苗高可达85.88 cm,地径可达7.01 mm,可显著提高苗木的质量。

备注/Memo

备注/Memo:
收稿日期:20061030修回日期:20061222基金项目:国家自然科学基金(30471357);云南省自然科学基金(2003C0050M);生物质材料科学与技术教育部重点实验室2004年度开放课题基金(2004年);中国博士后基金(2006年,第39批一等资助)作者简介:邱坚(1965),男,浙江湖州人,教授,主要从事木材学与木材功能性改良研究。*通讯作者:杨燕(1979),女,河南南阳人,硕士研究生,主要从事木材学及木材功能性改良研究。
更新日期/Last Update: 2010-05-04