The mountain forest coverage rate is 36.56% , main species including birch , poplars , lime tree .

关山的森林覆盖率达到了36.56%以上，主要树种包括：桦树、白杨树、椴树。

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The mountain forest coverage rate is 36.56% , main species including birch , poplars , lime tree .

关山的森林覆盖率达到了36.56%以上，主要树种包括：桦树、白杨树、椴树。

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