Microbial community structures and metabolic profiles response differently to physiochemical properties between three landfill cover soils

TitleMicrobial community structures and metabolic profiles response differently to physiochemical properties between three landfill cover soils
Publication TypeJournal Article
Year of Publication2016
AuthorsLong XE, Wang J, Huang Y, Yao HY
JournalEnvironmental Science and Pollution Research
Volume23
Pagination15483-15494
Date PublishedAug
Type of ArticleArticle
ISBN Number0944-1344
Accession NumberWOS:000380369900074
Keywordsagricultural soils, bacterial community, carbon-dioxide, dynamics, GREENHOUSE-GAS EMISSIONS, High throughput sequencing, Landfill cover soil, METHANE OXIDATION, microbial community, microresp (tm), nitrogen, organic-matter, PHOSPHOLIPID FATTY-ACID, Physiological profile, plfa, subtropical australia, WASTE LANDFILL
Abstract

Landfills are always the most important part of solid waste management and bear diverse metabolic activities involved in element biogeochemical cycling. There is an increasing interest in understanding the microbial community and activities in landfill cover soils. To improve our knowledge of landfill ecosystems, we determined the microbial physiological profiles and communities in three landfill cover soils (Ninghai: NH, Xiangshan: XS, and Fenghua: FH) of different ages using the MicroRes (TM), phospholipid fatty acid (PLFA), and high-throughput sequencing techniques. Both total PLFAs and glucose-induced respiration suggested more active microorganisms occurred in intermediate cover soils. Microorganisms in all landfill cover soils favored l-malic acid, ketoglutarate, and citric acid. Gram-negative bacterial PLFAs predominated in all samples with the representation of 16:1 omega 7, 18:1 omega 7, and cy19:0 in XS and NH sites. Proteobacteria dominated soil microbial phyla across different sites, soil layers, and season samples. Canonical correspondence analysis showed soil pH, dissolved organic C (DOC), As, and total nitrogen (TN) contents significantly influenced the microbial community but TN affected the microbial physiological activities in both summer and winter landfill cover soils.

Alternate JournalEnviron. Sci. Pollut. Res.