Microbial diversity drives multifunctionality in terrestrial ecosystems.
Microbial diversity drives multifunctionality in terrestrial ecosystems.
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DOI：
10.1038/ncomms10541
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发表时间：
2016-01-28
影响因子：
16.6
通讯作者：
Singh BK
中科院分区：
文献类型：
--
作者：
Delgado-Baquerizo M;Maestre FT;Reich PB;Jeffries TC;Gaitan JJ;Encinar D;Berdugo M;Campbell CD;Singh BK
尽管微生物群落对生态系统服务和人类福利具有重要意义，但在全球范围内，微生物多样性与多种生态系统功能和服务（即多功能性）之间的关系尚未得到评估。在这里，我们使用了两个独立的大型数据库，对比了地理覆盖范围（分别来自全球78个旱地和苏格兰179个地点），并报告了土壤微生物多样性与陆地生态系统的多功能性正相关。即使同时考虑多个多功能驱动因素（气候、土壤非生物因素和空间预测因子），微生物多样性的直接积极影响仍然保持不变。我们的研究结果提供了经验证据，表明微生物多样性的任何损失都可能降低多功能性，对陆地生态系统提供的气候调节、土壤肥力以及粮食和纤维生产等服务产生负面影响。微生物多样性在生态系统中的作用不如植物多样性那样为人所知。Delgado-Baquerizo等人分析了全球和区域尺度上的两个独立数据集，表明土壤多样性对多种陆地生态系统功能有积极影响。
Despite the importance of microbial communities for ecosystem services and human welfare, the relationship between microbial diversity and multiple ecosystem functions and services (that is, multifunctionality) at the global scale has yet to be evaluated. Here we use two independent, large-scale databases with contrasting geographic coverage (from 78 global drylands and from 179 locations across Scotland, respectively), and report that soil microbial diversity positively relates to multifunctionality in terrestrial ecosystems. The direct positive effects of microbial diversity were maintained even when accounting simultaneously for multiple multifunctionality drivers (climate, soil abiotic factors and spatial predictors). Our findings provide empirical evidence that any loss in microbial diversity will likely reduce multifunctionality, negatively impacting the provision of services such as climate regulation, soil fertility and food and fibre production by terrestrial ecosystems. The role of microbial diversity in ecosystems is less well understood than, for example, that of plant diversity. Analysing two independent data sets at a global and regional scale, Delgado-Baquerizo et al. show positive effects of soil diversity on multiple terrestrial ecosystem functions.