通过近年的实践经验证明,只要按照树种的生物学特性,遵循适地适树的原则,采取母树林下人工促进天然更新培育苗木、就近扩展延伸造林、人工平茬促进丛生的综合方法,是提高水曲柳造林成活率,改善树种生存、生长状态的有效技术手段。 According to the practical experience of recent years, it is proved that if we follow the biological principle of tree species and follow the principle of adapting to the tree properly, we should adopt the method of artificially promoting natural regeneration under the tree of mother trees to cultivate the seedlings, extend the near afforestation nearby, and improve the clumps comprehensively by artificial stubble Manchurian ash plantation survival rate, improve tree survival, growth status of effective technical means.