The links between ecosystem multifunctionality and above- and belowground biodiversity are mediated by climate.
The links between ecosystem multifunctionality and above- and belowground biodiversity are mediated by climate.
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DOI：
10.1038/ncomms9159
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发表时间：
2015-09-02
影响因子：
16.6
通讯作者：
He JS
中科院分区：
文献类型：
--
作者：
Jing X;Sanders NJ;Shi Y;Chu H;Classen AT;Zhao K;Chen L;Shi Y;Jiang Y;He JS
在陆地生态系统中，植物生物多样性通常与生态系统功能相关。然而，我们对地上和地下生物多样性对多种生态系统功能（例如，生态系统多功能性，EMF）的相对和综合影响知之甚少，也不知道气候如何调节这些关系。我们发现，一组生物和非生物变量占EMF变化的86%，地上和地下生物多样性的综合影响占EMF变化的45%。我们的研究结果有两个重要的含义：首先，将地下生物多样性纳入模型可以提高解释和预测EMF的能力。其次，区域尺度的气候变化，或许还有气候变化，可以决定或至少改变自然生态系统中生物多样性对电磁场的影响。植物生物多样性往往对生态系统功能有积极影响。Jing等人的研究表明，地下多样性也能显著影响生态系统的多功能性，但其相对效应因区域尺度的气候变化而异。
Plant biodiversity is often correlated with ecosystem functioning in terrestrial ecosystems. However, we know little about the relative and combined effects of above- and belowground biodiversity on multiple ecosystem functions (for example, ecosystem multifunctionality, EMF) or how climate might mediate those relationships. Here we tease apart the effects of biotic and abiotic factors, both above- and belowground, on EMF on the Tibetan Plateau, China. We found that a suite of biotic and abiotic variables account for up to 86% of the variation in EMF, with the combined effects of above- and belowground biodiversity accounting for 45% of the variation in EMF. Our results have two important implications: first, including belowground biodiversity in models can improve the ability to explain and predict EMF. Second, regional-scale variation in climate, and perhaps climate change, can determine, or at least modify, the effects of biodiversity on EMF in natural ecosystems. Plant biodiversity often has a positive influence on ecosystem functioning. Here Jing et al. show that belowground diversity can also significantly impact ecosystem multifunctionality, but its relative effect varies by regional-scale climate variation.