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4种针叶幼树的光合生理特性与大气湿度关系的研究
引用本文:郭连生,田有亮.4种针叶幼树的光合生理特性与大气湿度关系的研究[J].生态学报,1994,14(2):136-141.
作者姓名:郭连生  田有亮
作者单位:内蒙古林学院
摘    要:应用225MK3IRGA在室内控制的环境条件下测定研究了侧柏,樟子松,油松和杆等4种针叶幼树的净光合速率,暗呼吸强度,光补偿点与大气湿度的关系,研究结果证明,各种幼树的净光合速率均随大气湿度的降低而减弱,二者之间的关系可用y=a+blnx方程表达。其变化速率(b)在树种间有明显差异,它可以反映出不同树种对大气干旱忍耐力即抗旱性的差异“b"值小的树种表明其抗旱性强。依此排列出的上述4种幼树的抗旱性强

关 键 词:针叶树  幼树  光合作用  大气湿度
收稿时间:9/2/1992 12:00:00 AM
修稿时间:1993/1/18 0:00:00

STUDY ON THE RELATIONSHIP BETWEEN THEPHOTOSYNTHETIC FEATURES OF FOURCONIFEROUS SPECIES SAPLINGS AND AIR HUMIDITY
Guo Liansheng.STUDY ON THE RELATIONSHIP BETWEEN THEPHOTOSYNTHETIC FEATURES OF FOURCONIFEROUS SPECIES SAPLINGS AND AIR HUMIDITY[J].Acta Ecologica Sinica,1994,14(2):136-141.
Authors:Guo Liansheng
Institution:Inner Mongolia College of Forestry; Huheat; 010019
Abstract:he relationship between the air humidity and the rate of the net photosynthesis,ten-dency of respiration and the compensation point of light quantum of saplings of four conifer-ous species. Namely . Platycladus orientaris , Pinus sylvestris var. mongolica , P. tabulaeformisand Picea meyeri were measured and studied by using 225MK,IRGA(ADC) under the con-trolled indoor conditions. The results show that all the rates of net photosynthesis in thefour species of salings declined with decreasing air humidity an...
Keywords:saplings of conifer  photosynthetic characters  air humidity  
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