UNASSIGNED: The Athabasca Oil Sands deposit is one of the largest single oil deposits in the world. Following surface mining, companies are required to restore soil-like profiles that can support the previous land capabilities. The objective of this study was to assess if soil prokaryotic a- and b-diversity in oil-sands soils reconstructed 20-30 years previously, and planted to one of three @entity47 types (coniferous or deciduous trees and grassland) were similar to those found in natural boreal-forest soils subject to wildfire disturbance. Prokaryotic a- and b-diversity were assessed using massively parallel sequencing of 16S rRNA genes. b-diversity, but not a-diversity, differed between reconstructed and natural soils. Bacteria associated with an oligotrophic lifestyle were more abundant in natural forest soils, whereas bacteria associated with a copiotrophic lifestyle were more abundant in reconstructed soils. Ammonia-oxidizing archaea were most abundant in reconstructed soils planted with grasses. Plant species were the main factor influencing a-diversity in natural and in reconstructed soils. @entity1568 deposition, pH and plant species were the main factors influencing b-diversity of the prokaryotic communities in natural and reconstructed soils. The results highlight the importance of @entity1568 deposition and aboveground - belowground relationships in shaping soil microbial communities in natural and reconstructed soils.Importance Covering over 800 km(2), land disturbed by the exploitation of the oil-sands in Canada has to be restored. Here, we take advantage of the proximity between these reconstructed ecosystems and the boreal forest surrounding the oil-sands mining area to study soil microbial community structure and processes in both natural and @entity1 -made environments. By identifying key characteristics shaping the structure of soil microbial communities, this study improved our understanding of how @entity47 , soil characteristics and microbial communities interact and drive soil functions.

Plant community and XXXX deposition as drivers of a- and b-prokaryotic diversity in reconstructed oil-sands soils and natural boreal forest soils.

@entity47 :: ('MESH:D018458', 'Disease') :: ['vegetation'] @entity1 :: ('9606', 'Species') :: ['man'] @entity1568 :: ('MESH:D009584', 'Chemical') :: ['nitrogen', 'Nitrogen']
@entity1568 :: (MESH:D009584,Chemical) :: ['nitrogen']
