中国林学(英文版)2008，Vol.10Issue(3)：173-178,6.
Interrelationships between leaf heat conductivity and tissue structures of different varieties of Populus tomentosa Carr.
Interrelationships between leaf heat conductivity and tissue structures of different varieties of Populus tomentosa Carr.
摘要
Abstract
Plant heat conductivity largely depends on tissue structure. Different structures lead to different heat conductivity. As well, water transfer also plays a very important role in heat transfer in plants. We have studied leaf heat conductivity and tissue structure of 3- and 30-year-old Populus tomentosa Carr. trees using mildred thermal imaging, steady state heat conductivity surveys and paraffin section and investigated the relationship between leaf heat conductivity, tissue structure and water content of leaves. The results show that the temperature on leaf surfaces among the various varieties of trees was almost the same. Leaf heat conductivity, temperature and water content of leaves are positively correlated. The thicker the leaf tissue structures, the larger the heat resistance. That is, the tighter the cells and the smaller the interspaces, the smaller the heat conductivity, which is not conducive for heat transfer.关键词
Populus tomentosa Carr./leaf. inflated thermal imaging/heat conductivity/paraffin sectionKey words
Populus tomentosa Carr./leaf. inflated thermal imaging/heat conductivity/paraffin section分类
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WANG Min,ZHANG Wen-jie,XIAO Jian,ZHANG Zhi-yi,LIU Jing..Interrelationships between leaf heat conductivity and tissue structures of different varieties of Populus tomentosa Carr.[J].中国林学(英文版),2008,10(3):173-178,6.基金项目
This study was supported by the National Project of Science and Technology for the 11th Five-Year Plan in China (Grant No.2006BAD24B04). （Grant No.2006BAD24B04）
