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草地在维持生态平衡与畜牧业发展中发挥着关键作用。然而，在人类活动和气候变化的双重作用下，全球约50% 的草地出现不同程度退化。生物多样性是维持生态系统功能的基础。草地退化会显著改变植物与土壤生物多样性，进而影响生态系统功能。尽管如此，以往的研究主要关注未退化草地植物/土壤生物多样性与生态系统功能的关系，尚不清楚草地退化是否改变二者对生态系统功能的相对贡献。

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（图片来源：中国科学院植物研究所）

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