Effect of biocrusts on bacterial community composition at different soil depths in Mediterranean semi-arid ecosystems

This study analyzed the influence of biocrusts on the chemical properties and bacterial diversity and community composition in the underlying soils along a depth gradient (the biocrust (C1), middle (S2) and deep (S3) soil layers) in two semi-arid Mediterranean ecosystems. Organic carbon, pH, electri...

Full description

Saved in:
Bibliographic Details
Published in:The Science of the total environment 2020-09, Vol.733, p.138613-138613, Article 138613
Main Authors: Miralles, I., Soria, R., Lucas-Borja, M.E., Soriano, M., Ortega, R.
Format: Article
Language:English
Subjects:
Calcium carbonate content
High-throughput sequencing
Salinity
Soil bacterial co-occurrence patterns
Soil organic carbon
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study analyzed the influence of biocrusts on the chemical properties and bacterial diversity and community composition in the underlying soils along a depth gradient (the biocrust (C1), middle (S2) and deep (S3) soil layers) in two semi-arid Mediterranean ecosystems. Organic carbon, pH, electric conductivity and calcium carbonate content were estimated by wet oxidation, potentiometrically (pHmeter), with a conductivity-meter and volumetrically with a Bernard calcimeter, respectively. Bacterial diversity and community composition were estimated by 16S rRNA gene high-throughput amplicon sequencing. Chemical properties in C1 were significantly different from the other soil layers, showing higher organic carbon content and lower pH (p 
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2020.138613