Abiotic drivers and plant traits explain landscape-scale patterns in soil microbial communities
Abiotic drivers and plant traits explain landscape-scale patterns in soil microbial communities
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DOI：
10.1111/j.1461-0248.2012.01844.x
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发表时间：
2012-11-01
期刊：
影响因子：
8.8
通讯作者：
Bardgett, Richard D.
中科院分区：
文献类型：
--
作者：
de Vries, Franciska T.;Manning, Pete;Bardgett, Richard D.
对地上群落组成和多样性的控制已经进行了广泛的研究，但我们对地下微生物群落的驱动因素的了解相对缺乏，尽管它们对生态系统功能的重要性。在这项研究中，我们拟合的统计模型来解释土壤微生物群落组成的规模变化，使用的数据来自180个网站，涵盖了广泛的草地类型，土壤和气候条件在英格兰。我们发现，土壤微生物群落的变化是由非生物因素，如气候，pH值和土壤性质。生物因子，即植物功能性状的群落加权平均值（CWM），也解释了土壤微生物群落的变化。特别是，更多的细菌占主导地位的微生物群落与开发性植物性状与真菌占主导地位的社区与资源保守性状，表明植物功能性状和土壤微生物群落在景观尺度上密切相关。
The controls on aboveground community composition and diversity have been extensively studied, but our understanding of the drivers of belowground microbial communities is relatively lacking, despite their importance for ecosystem functioning. In this study, we fitted statistical models to explain landscape-scale variation in soil microbial community composition using data from 180 sites covering a broad range of grassland types, soil and climatic conditions in England. We found that variation in soil microbial communities was explained by abiotic factors like climate, pH and soil properties. Biotic factors, namely community-weighted means (CWM) of plant functional traits, also explained variation in soil microbial communities. In particular, more bacterial-dominated microbial communities were associated with exploitative plant traits versus fungal-dominated communities with resource-conservative traits, showing that plant functional traits and soil microbial communities are closely related at the landscape scale.