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Interaction effects of pH and land cover on soil microbial diversity are climate-dependent
Environmental Microbiology ( IF 4.3 ) Pub Date : 2024-01-09 , DOI: 10.1111/1462-2920.16572
Maëva Labouyrie 1, 2, 3 , Cristiano Ballabio 2 , Ferran Romero 3 , Panos Panagos 2 , Arwyn Jones 2 , Leho Tedersoo 4 , Marcel G A van der Heijden 1, 3 , Alberto Orgiazzi 2, 5
Affiliation  

Factors regulating the diversity and composition of soil microbial communities include soil properties, land cover and climate. How these factors interact at large scale remains poorly investigated. Here, we used an extensive dataset including 715 locations from 24 European countries to investigate the interactive effects of climatic region, land cover and pH on soil bacteria and fungi. We found that differences in microbial diversity and community composition between land cover types depended on the climatic region. In Atlantic, Boreal and Continental regions, microbial richness was higher in croplands and grasslands than woodlands while richness in Mediterranean areas did not vary significantly among land cover types. These differences were further related to soil pH, as a driver of bacterial and fungal richness in most climatic regions, but the interaction of pH with land cover depended on the region. Microbial community composition differed the most between croplands and woodlands in all regions, mainly due to differences in pH. In the Mediterranean region, bacterial communities in woodlands and grasslands were the most similar, whereas in other regions, grassland and cropland-associated bacteria showed more similarity. Overall, we showed that key factors interact in shaping soil microbial communities in a climate-dependent way at large scale.

中文翻译:


pH 值和土地覆盖对土壤微生物多样性的相互作用影响取决于气候



调节土壤微生物群落多样性和组成的因素包括土壤性质、土地覆盖和气候。这些因素如何大规模相互作用的研究仍然很少。在这里,我们使用了包括来自 24 个欧洲国家的 715 个地点的广泛数据集来研究气候区域、土地覆盖和 pH 值对土壤细菌和真菌的相互作用影响。我们发现土地覆盖类型之间微生物多样性和群落组成的差异取决于气候区域。在大西洋、北方和大陆地区,农田和草地的微生物丰富度高于林地,而地中海地区的微生物丰富度在土地覆盖类型之间没有显着差异。这些差异进一步与土壤 pH 值相关,土壤 pH 值是大多数气候地区细菌和真菌丰富度的驱动因素,但 pH 值与土地覆盖的相互作用取决于该地区。所有地区农田和林地的微生物群落组成差异最大,主要是由于 pH 值的差异。在地中海地区,林地和草地的细菌群落最相似,而在其他地区,草地和农田相关的细菌表现出更多的相似性。总体而言,我们表明关键因素以依赖于气候的方式大规模地影响土壤微生物群落的相互作用。
更新日期:2024-01-09
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