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初选候选树
在林龄、环境一致或相近的群体中,根据性状指标,经踏查和目测等方法初选出表现优良的单株树木。又称候选树。
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Nikodým metric
Nikolaas Tinbergen
Nikolae Grigorescu
Nikolai Afanassyevich Kryuchkov
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Nikolai Robertovich Erdman
Nikolai Schuhaj, Highwayman
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