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我省目前杨树丰产林向集约经营提高材积生长率方向迅速发展。决定材积生长率的因素十分复杂。从根本上看,是光合作用效率。因此,开展杨树光能利用的研究非常必要。近年来,我们选用健杨、太青杨、毛白杨等苗木和幼树,对与光能利用有关的叶面积、光合速率和影响光合速率的内外因子进行了初步探讨,现就所获资料加以整理,并对提高杨树光合作用效率的途径问题进行粗浅的讨论。不妥之处请批评指正。
At present, poplar forest in our province to the intensive management to increase the volume growth rate of rapid development. The factors that determine the volume growth rate are complex. Fundamentally, it is the efficiency of photosynthesis. Therefore, it is very necessary to carry out the research on the light energy utilization of poplar. In recent years, we choose Jian Yang, Tai Yang Yang, Populus tomentosa and other seedlings and young trees on the use of light energy related to leaf area, photosynthetic rate and influence of photosynthetic rate of internal and external factors were discussed, the data obtained are now Finishing, and to improve the efficiency of the photosynthesis of poplar way to discuss the issue of shallow. Inappropriate please comment on the correction.