方法结合地理距离和遗传距离的关系，分别建立基于三种经典遗传距离的群体遗传空间结构异质性的变异函数模型。
Methods Spatial semivariogram models were set up based on genetic distance by analyzing the relationship between geographic distance and genetic distance.
云南松木材的松脂含量主要决定于遗传因素，但又受生长地理位置变异的影响。
The resin content in timber of Yunnan pine was mainly controled by hereditary substance, and also affected by the geographic variation of grow place.
各地理种群间的遗传距离为0～0.016，表现为种下的遗传变异，这与RAPD分析得出的结果相一致。
Genetic distance among different populations are 0~0.016, which is belong to infraspecies genetic variation, this result is consistent with RAPD analysis.
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