In this article,hypothesis,theories and researches about the formation mechanism of understory plant diversity were re -viewed and summarized.On the basis of summarizing and reviewing ,we demonstrated the prospects of future research and put forward some suggestions in the hope that it may be helpful for the melioration and protection of forest diversity .%综述了有关人工林林下植物多样性的相关假说、理论和研究实践,在总结研究现状的同时提出了展望,以期为生物多样性保育提供参考。
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