Divergent Responses of Forest Soil Microbial Communities under Elevated CO₂ in Different Depths of Upper Soil Layers.

ABSTRACT: Numerous studies have shown that the continuous increase of atmosphere CO₂ concentrations may have profound effects on the forest ecosystem and its functions. However, little is known about the response of belowground soil microbial communities under elevated atmospheric CO₂ (eCO₂) at different soil depth profiles in forest ecosystems. Here, we examined soil microbial communities at two soil depths (0 to 5 cm and 5 to 15 cm) after a 10-year eCO₂ exposure using a high-throughput functional gene microarray (GeoChip). The results showed that eCO₂ significantly shifted the compositions, including phylogenetic and functional gene structures, of soil microbial communities at both soil depths. Key functional genes, including those involved in

SUBMITTER: Yu H 

PROVIDER: S-EPMC5734029 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature