Development of new cambial marking method by using high DC volage pulse.

利用高直流电压脉冲开发新的形成层打标方法。

• 批准号: 23658127
• 负责人: OKADA Naoki
• 金额: $ 1.75万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-23658127/
• 关键词: 熱帯樹木; 成長輪; 形成層; 高電圧パルス; 形成層マーキング; タイ; 半島マレーシア; 湿潤熱帯; 季節熱帯

DC high voltage pulse was applied to tree cambium to develop an effective cambial marking method for estimating tree growth of ring-less tropical trees. In addition, bio-impedance of tree cambium was also monitored for estimating seasonal changes of cambial activity. Temperate tree species formed abnormal cells and tissues by treating 300-500 v. The degree of abnormal tissue formation was different by species, but common features were observed as follows: (1) formation of thick-walled vessel element and wood fibers, (2) increase in tangential row of ray cells, and formation of abnormal-shaped ray parenchyma cells, and (3) formation of colored-substances in parenchyma cells. The value of impedance showed seasonal changes, probably reflecting the difference of cambial activity.

采用直流高压脉冲法对树木形成层进行标记，建立了一种有效的热带无轮树生长量估测的形成层标记方法。此外，还通过测定树木形成层的生物阻抗值来估计形成层活动的季节变化。温带树种经300-500 v处理后形成异常细胞和组织。异常组织形成的程度因树种而异，但观察到以下共同特征：（1）厚壁导管分子和木质纤维的形成;（2）射线细胞的弦向排列增多，射线薄壁细胞的形状异常，（3）薄壁细胞中有色物质的形成。阻抗值呈现季节性变化，可能反映了形成层活动的差异。

项目成果

直流高電圧パルスによる形成層マーキング

直流高压脉冲形成层打标

• 发表时间: 2012
• 作者: Amir Affan Abdul Azim; Naoki Okada;奈良一秀;岡田直紀
• 通讯作者: 岡田直紀

Occurrence and anatomical features of growth rings in tropical rainforest trees in Peninsular Malaysia

马来西亚半岛热带雨林树木年轮的发生和解剖特征

• 发表时间: 2013
• 作者: Amir Affan Abdul Azim; Naoki Okada
• 通讯作者: Naoki Okada

Occurrence and anatomical features of growth rings in tropical trees in Peninsular Malaysia

马来西亚半岛热带树木年轮的发生和解剖特征

• 发表时间: 2013
• 作者: 宗昆;奈良一秀;練春蘭;Amir Affan Abdul Azim & Naoki Okada
• 通讯作者: Amir Affan Abdul Azim & Naoki Okada

樹木の電気インピーダンスの計測

测量树木的电阻抗

• 发表时间: 2013
• 作者: Nara;K.;岡田直紀
• 通讯作者: 岡田直紀

Amir Affan Abdul Azim & Naoki Okada, Occurrence and anatomical features of growth rings in tropical trees in Peninsular Malaysia : a preliminary study

阿米尔·阿凡·阿卜杜勒·阿齐姆

• 发表时间: 2014
• 期刊: TROPICS
• 影响因子: 0.7
• 作者: 光川侑輝;佐藤一輝;竹内祐子;二井一禎;奈良一秀,田中元気,村田政穂;Amir Affan Abdul Azim & Naoki Okada
• 通讯作者: Amir Affan Abdul Azim & Naoki Okada