[1]陈永亮,韩士杰.应用电子探针研究苗木根土界面元素微区分布[J].南京林业大学学报(自然科学版),2009,33(03):065-68.[doi:10.3969/j.jssn.1000-2006.2009.03.015]
 CHEN Yong liang,HAN Shi jie.Distribution characteristics of elements in rootsoil interface of Pinus koraiensis seedlings by electron probe Xray microanalysis[J].Journal of Nanjing Forestry University(Natural Science Edition),2009,33(03):065-68.[doi:10.3969/j.jssn.1000-2006.2009.03.015]
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应用电子探针研究苗木根土界面元素微区分布
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
33
期数:
2009年03期
页码:
065-68
栏目:
研究论文
出版日期:
2009-05-30

文章信息/Info

Title:
Distribution characteristics of elements in rootsoil interface of Pinus koraiensis seedlings by electron probe Xray microanalysis
作者:
陈永亮1韩士杰2
1.临沂师范学院生命科学学院,山东临沂276005;2.中国科学院沈阳应用生态研究所,辽宁沈阳150016
Author(s):
CHEN Yongliang1 HAN Shijie2
1.College of Life Science Linyi Normal University, Linyi 276005, China; 2.Institute of Applied Ecology, CAS, Shenyang 150016, China
关键词:
根/土界面元素分布电子探针X射线微量分析红松
Keywords:
rootsoil interface element distribution electron probe Xray microanalysis Pinus koraiensis
分类号:
S791.247
DOI:
10.3969/j.jssn.1000-2006.2009.03.015
文献标志码:
A
摘要:
以冰冻切片-电子探针X射线微量分析法研究了红松苗木根土界面营养元素的微区分布特点。结果表明:苗木根际土壤中氮、磷、钾、钙、硫等元素含量均低于根组织中的含量,而铁元素的含量较根组织中的高;根组织中磷、钾含量由表皮向根内径向增加,氮、钙与铁在根组织内的分布则与磷、钾呈相反的趋势,由根表向根内逐渐减少。通过对元素含量的微区分布特点分析,可以较深入地了解根/土生态界面范围并说明一些养分的运输机理。
Abstract:
The distribution characteristics of the elements in the rhizosphere and root tissue of Pinus koraiensis were studied by electron probe Xray microanalysis in this paper. The results showed that the contents of N, P, K, Ca, S in the rhizosphere soil were all lower than that in the root tissue, while the contents of Fe in the rhizosphere soil was higher than that in the root tissue. The contents of P, K in the root tissues increased from the root surface to interior of the roots gradually. On the contrary, the contents of N, Ca, Fe in the root tissues decreased from root surface to interior gradually. The magnitude of the rootsoil ecological interface and mechanism by which the elements were transported might be explained largely by means of the gradient distribution of the elements in the rhizosphere soil and the root tissue.

参考文献/References:

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相似文献/References:

[1]张献义,张荣盛,陈金林.应用电子探针技术进行苗木根际元素分布研究[J].南京林业大学学报(自然科学版),1992,16(04):001.[doi:10.3969/j.jssn.1000-2006.1992.04.001]
 Zhang Xianyi Zhang Rongsheng Chen Jinlin.STUDIES ON ELEMENT DISTRIBUTION OF SEEDLING RHIZOSPHERE WITH ELECTRON MICROPROBE ANALYSIS[J].Journal of Nanjing Forestry University(Natural Science Edition),1992,16(03):001.[doi:10.3969/j.jssn.1000-2006.1992.04.001]

备注/Memo

备注/Memo:
收稿日期:2008-06-05修回日期:2008-12-25基金项目:中国科学院“百人计划A”——森林界面生态学资助项目作者简介:陈永亮(1969—),博士,研究方向为根土界面营养生态。Email: chenyongliang@lytu.edu.cn。引文格式:陈永亮,韩士杰. 应用电子探针研究苗木根土界面元素微区分布[J]. 南京林业大学学报:自然科学版,2009,33(3):65-68.
更新日期/Last Update: 2009-05-30