粉尘污染对黄帝陵侧柏一些生理指标及生长的影响  

Effect of the Dust pollution on Some Physiologic Indexes and Growtb of Platycladus Orientalis in Huangdi Tomb

作　　者：杨茂生[1] 姜在民[1] 梅秀英[1] 蔡靖[1] 王军[1] 张树杰[1] 

机构地区：[1]西北林学院森保系,中国林科院,甘泉县林业局

出　　处：《干旱地区农业研究》1994年第4期99-104,共6页Agricultural Research in the Arid Areas

摘　　要：对受污染的黄帝陵侧柏叶的光合、呼吸和蒸腾作用及相对气孔扩散阻力进行测定的结果表明，随叶片受污染程度的加重，其光合强度、呼吸强度和蒸腾强度均表现为下降趋势；而相对气孔扩散阻力却相应增大；１—２年生枝条顶梢生长量明显下降。在测试的各项生理指标中，不同污染等级的侧拍叶与对照叶之间多具极显著的差异性。The photosynthesis ,respiration, transpiration and relative diffusion re- sistance of stomata in polluted Needles of Platycdus orientalis in Huangdi tomb were de- termined.The results showed that the intensities of the photosynthesis , respiration and transpiration tended to drop with the increase in pollutions on needles, while the relativediffusing resistance of stomata increases and the growth quantity on the apex of 1～2years old twigs apparently decreased.Among the determined physiological indexes ofeach item,there exists an extremely significant difference between the needles of Platy-oladus orientalies and those of the control in different pollution needles.

关 键 词：侧柏 粉尘污染 光合强度 呼吸强度 蒸腾强度 生长量 

分 类 号：S791.380.1[农业科学—林木遗传育种]