五营
五营-
小兴安岭五营林区原始红松林年龄结构的研究
A study on the age structure of primary Korean pine forest in the Xiao Xing an Mountain
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通过对伊春五营国家森林公园负离子浓度的监测发现，在空气负离子产生的各项机理中，勒纳尔效应的效果是最显著的。
Through monitoring at Wuying National Forest Park in Yichun , the authors find that the result of Lenard effect is the most notable in all generable mechanisms of NAI .