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以包头市阿尔丁植物园、锦林公园、迎宾道3个样地的针叶“红化”油松与健康油松为试材,采用室外光合速率对比方法,研究了正常生长油松与针叶“红化”油松对针叶光合作用的影响。结果表明:油松的光合速率规律均呈双峰型;同一地点不同生长状况油松的光合速率有明显差异,正常油松光合速率最高峰为CO213.80μmol·m-2·s-1,针叶“红化”油松的最高峰值为CO211.60μmol·m-2·s-1;不同样地相同生长状况油松光合速率也有一定联系;同一油松一年中不同月份光合速率随光照强度的不同其变化规律呈单峰型。
In this study, Pinus’ Red ’and Pinus tabulaeformis’ Pinus tabulaeformis and Pinus tabulaeformis were planted in three sample plots of Arden Botanic Garden, Jinlin Park and Yingbin Road in Baotou. The photosynthetic rate of outdoor was used to study the effects of normal growth of Pinus tabulaeformis Effects of Pinus tabulaeformis and Pinus tabulaeformis on Photosynthesis of Needles. The results showed that the photosynthetic rate of Pinus tabulaeformis was bimodal. The photosynthetic rate of Pinus tabulaeformis was significantly different in the same place. The highest photosynthetic rate of Pinus tabulaeformis was CO213.80μmol · m-2 · s-1 The highest peak value of Pinus tabulaeformis was CO211.60μmol · m-2 · s-1. The photosynthetic rate of Pinus tabulaeformis was also correlated with the same growth in different sites. The photosynthetic rate of Pinus tabulaeformis The variation of light intensity showed a unimodal pattern.