The microorganism number under the natural spruce firforest was bigger than the secondary.
天然云冷杉林的微生物总量大于次生云冷杉林;
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The accumulation quantity of litter of Chinese firforest and its undergrowth plant at different site indices and forest ages also existed obvious difference.
Using typical sampling method, the paper studies the composition and important value of plant species in subalpine spruce firforest on Northern Slope of Changbai Mts.