Plant mycorrhizal status (a trait indicating the ability to form mycorrhizas) can be a useful plant trait for predicting changes in vegetation influenced by increased fertility. Mycorrhizal fungi enhance nutrient uptake and are expected to provide a competitive advantage for plants growing in nutrient-poor soils; while in nutrient-rich soils, mycorrhizal symbiosis may be disadvantageous. Some studies in natural systems have shown that mycorrhizal plants can be more frequent in P and N-poor soils (low nutrient availability) or Ca and Mg-high (high pH) soils, but empirical support is still not clear. Using vegetation and soil data from Scottish coastal habitats, and Latvian and Czech grasslands, we examined whether there is a link between plant mycorrhizal status and plant-available P, N, Ca and Mg. We performed the max test analysis (to examine the central tendency) and a combination of quantile regression and meta-analysis (to examine tendencies in different quantiles) on both community and plant species data combined with plant phylogenies. We consistently found no changes in mycorrhizal status at the community and species levels along the gradients of plant-available P, N, Ca and Mg in the central tendency and in almost all quantiles across all datasets. Thus, we found no support for the hypotheses that herbaceous species which are able to form mycorrhizas are more frequent in nutrient-poor and high pH environments. Obligatory, facultatively and non-mycorrhizal herbaceous species appear to assemble randomly along the gradients of nutrient availability in several European herbaceous habitats, suggesting that all these strategies perform similarly under non-extreme soil nutrient conditions.

植物菌根状态（一种表明能够形成菌根的性状）可以是一种有用的植物性状，可用于预测受肥力增加影响的植被变化。菌根真菌可增强养分吸收，有望为生长在贫营养土壤中的植物提供竞争优势；而在营养丰富的土壤中，菌根共生可能是不利的。自然系统中的一些研究表明，菌根植物在贫磷和贫氮土壤（低养分可用性）或高钙镁（高 pH 值）土壤中可能更常见，但经验支持仍不清楚。使用来自苏格兰沿海栖息地以及拉脱维亚和捷克草原的植被和土壤数据，我们检查了植物菌根状态与植物可用 P、N​​、Ca 和 Mg 之间是否存在联系。我们对群落和植物物种数据以及植物系统发育进行了最大检验分析（以检查集中趋势）以及分位数回归和元分析的组合（以检查不同分位数的趋势）。我们始终没有发现群落和物种水平的菌根状态在集中趋势和几乎所有数据集的所有分位数中沿着植物可用 P、N​​、Ca 和 Mg 的梯度发生变化。因此，我们发现没有支持能够形成菌根的草本物种在营养贫乏和高 pH 值环境中更常见的假设。强制性的、兼性的和非菌根草本物种似乎在几个欧洲草本生境中沿着养分有效性的梯度随机组合，