The natural spruce-fir mixed stand is one of the main forest types in China, and also has large proportion in the civil and national consuming.
天然云冷杉针阔混交林是我国的主要森林类型之一，在国民用材中占有相当大的比重。
Interspecific hybridization has been a technique of forest tree improvement and has been commonly practiced in many tree species, but there have been few attempts on China fir species.
杂交育种技术已在众多树种的遗传改良中被广泛应用，但在开展过的冷杉杂交试验中，几乎没有涉及到我国的冷杉树种。
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