Abstract
AbstractThe ecological development of soil microbial communities was studied in terms of microbial composition and structure at different rehabilitated phases on three quarries, namely Turret Hill Quarry (TH), Lam Tei Quarry (LT), and Shek O Quarry (SO), in Hong Kong. Using individual fatty acid methylesters (FAMEs) as biomarkers, Gram− bacteria dominated at all sites, in which cy19:0 represented more than 15% of the total extracted FAMEs in all soils tested. Redundancy analysis showed that the abundance of Gram− bacteria and Gram+ bacteria correlated significantly with woody species richness, native species richness, organic C, total N, and extractable NO3‐N. Fungi (18:1w9c and 18:2w6) and arbuscular mycorrhizal (AM) fungi (16:1w5c) decreased in abundance with increasing age in SO and LT, which were positively correlated with grass coverage, soil pH, extractable NH4‐N, and extractable P. Our study suggested that soil aeration and C availability in soils played a dominant role driving the changes in the composition and structure of Gram− bacteria and Gram+ bacteria communities. Available P was the limiting factor for regulating the fungal and AM fungal communities on our local quarries.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
