Abstract
AbstractSoil microbiome plays a significant role in the development of the soil profile and the implementation of key soil biochemical processes. Observed Arctic warming creates significant environmental risks, since permafrost soils contain a huge amount of organic matter, which is in potential risk to be released in the form of greenhouse gases. This work is aimed to investigate the microbiomes in soils of mature tundra and anthropogenically affected areas of the Yamal region using a high-throughput sequencing approach. The taxonomic analysis of the soil microbiomes revealed 33 bacterial and archaeal phyla, among which the dominant wereProteobacteria,Acidobacteria,Actinobacteria,Bacteroides,Chloroflexi,Cyanobacteria,Firmicutes,Gematimonadetes,Patescibacteria,Plantomycetes,Thaumarchaeota,Verrucomicrobia, andWPS-2. The analysis of alpha and beta diversities revealed that undisturbed soil is completely different from anthropogenically affected ones in terms of microorganism biodiversity. Soils of the urban zone of Salekhard were found to be different with regard to the number of operational taxonomic units and beta diversity. Herein the microbiome in the upper and lower layers of soil developed under strong technogenic influence (M19) was unequal both in quality and in quantity. At the same time, soils developed in the recreational zone of Salekhard showed less differentiation profile of microbiome (former crop field and former vegetable garden soils). Microbial communities in the mature tundra soil showed less differentiated microbiome composition.
Highlights
According to official sources, 30–40 million hectares of arable lands have been removed from agricultural use in Russia and are not used
The highest number of Operational taxonomic units (OTUs) was in the soil of the former crop field
This can be due to the fact that soil was intensively involved in agricultural practices during many years, which is in line with the results from post-anthropogenic soils reported by Pershina et al (2020)
Summary
30–40 million hectares of arable lands have been removed from agricultural use in Russia and are not used. They are transferred into the state of abandoned lands and transformed under the influence of natural and anthropogenic processes of soil formation, soil’s self-development and degradation, forest growth, and waterlogging (Walker et al 2009; Lyuri et al 2010; Ivanov et al 2015a,b). An important factor in the development of agricultural production in YANAO is the improvement in the agropotential of natural and effective fertility of arable and abandoned soils in
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
