实生苗是植物种群更新的主要资源。
Seedling is the main resources which plant population renews.
种群更新不良， 具有明显的衰退趋势。
The regeneration of population of E. henryi was poor and the population size was declining.
这些特征将影响到巴山冷杉种群的分布格局和种群更新。
These characteristics would influence the pat-tern and regeneration of Abies fargesii population.
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