为研究不同部位、不同产地梗丝对卷烟常规主流烟气释放量的影响，分析了国内6个产地烤烟上部、中部、下部梗丝样本的常规主流烟气释放量，并与相应部位、产地叶丝样本的常规主流烟气释放量对比。结果表明：不同部位的梗丝烟气焦油释放量上部≥中部＞下部，烟碱释放量上部＞中部≥下部；不同部位的叶丝烟气焦油、烟碱释放量上部＞中部＞下部；不同部位的梗丝、叶丝之间烟气一氧化碳释量没有明显的规律性。不同产地之间的梗丝、叶丝烟气焦油和烟碱释放量差异性均较小；不同产地的梗丝一氧化碳释放量以贵州毕节、云南临沧较高，以湖南郴州较低。梗丝烟气中焦油、烟碱释放量明显低于叶丝，而一氧化碳释量则明显高于叶丝。

In order to study the effects of different stalk position and different growing area of cut stems in cigarette common mainstream smoke,analyzed the common mainstream smoke from 6 areas of domestic Flue-cured upper、middle and lower cut stem and cut leaf tobacco,The results showed that:in the smoke of different stalk position of cut stem, the tar was upper≥ middle＞lower,the nicotine was upper＞middle≥lower;in the smoke of different stalk position of cut leaf,the tar and nicotine was upper＞middle＞lower;there was no obvious regularity in carbon monoxide of different stalk position of cut stem and leaf. The differences of the tar and nicotine in cut stem and cut leaf between different growing area was litter. The carbon monoxide of the cut stem in different growing area was compared,it was heighter in BiJie and LinChang,but lower in ChenZhou.The tar and nicotine was obviously lower in the smoke of cut stem than it in the smoke of cut leaf;but the carbon monoxide was contrary.