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。
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。
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