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在小兴安岭的原始红松林内,极少能发现天然更新的红松幼苗、幼树。而距红松林很远的云冷杉林内及云冷杉、白桦和落叶松混交林内,天然更新的红松幼苗幼树都很多,而且生长良好。红松球果大而重,成熟后果鳞亦不开裂,种子不飞散,凭借风力不可能有那么远距离的传播。为探明形成这种现象的原因,我们在黑龙江省红星林业局红旗林场进行了调查研究。调查发现,是动物在吃食和搬运松籽的过程中,为红松传播了种子。其中,星鸦就是主要传播者之一。
In the original korean pine forests in Xiaoxing’anling, the natural regeneration of Korean pine seedlings and saplings can seldom be found. Within the spruce fir forest far away from korean pine and the mixed forest of spruce, white birch and larch, the naturally regenerated korean pine and sapling seedlings have many and grow well. Large and heavy red pine cones, mature fruit scale is not cracking, the seeds do not fly, with the wind can not have so far spread. To find out the reasons for the formation of this phenomenon, we conducted a research in Hongqi Forest Farm, Hongxing Forestry Bureau of Heilongjiang Province. The survey found that the animals spread the seeds of Korean pine during their feeding and handling of pine nuts. Among them, the Star Crow is one of the main communicators.