Phytoremediation affects microbial development on a limestone quarry

Phytoremediation was used to regenerate a limestone quarry area. Plant growth mixed medium added over the quarry surface, consisting of a mixture of pyrolusite byproducts, natural soil, sand, and rice husk. Three different plant species: pine, cypress, and broom were planted at 9 randomized plots in...

Full description

Saved in:
Bibliographic Details
Published in:International journal of phytoremediation 2018-07, Vol.20 (9), p.957-963
Main Authors: Alifragki, Maria G., Pavlatou-Ve, Athina K., Orfanoudakis, Michail Z.
Format: Article
Language:English
Subjects:
Acid phosphatase
Alkaline phosphatase
Biodegradation, Environmental
Byproducts
Calcium Carbonate
Carbon
Carbon content
Carbon dioxide
forest plant establishment
Limestone
microbial activity
Microorganisms
Mineralization
Organic carbon
Phosphatase
Phytoremediation
Pine
Plant growth
Plant roots
Pyrolusite
pyrolusite byproducts
Quarries
Sandy soils
Soil
Soil Microbiology
Substrates
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:Phytoremediation was used to regenerate a limestone quarry area. Plant growth mixed medium added over the quarry surface, consisting of a mixture of pyrolusite byproducts, natural soil, sand, and rice husk. Three different plant species: pine, cypress, and broom were planted at 9 randomized plots in order to assess the effects of vegetation on the microbial development, which was measured for the following 3 years. Substrate samples were analyzed for organic carbon content (C org ), microbial biomass (C mic ), basal CO 2 respiration activity (BR), alkaline phosphatase (ALP), and acid phosphatase activities at each plant specie and year. Furthermore, the ratio C mic /C org , the metabolic quotient (qCO 2 ), and the C mineralization quotient (qM) were determined. The highest survival rates occurred for broom (93.52%), followed by cypress and pine (82.41%) at the final year, while the content of C mic , BR, and ALP was increased significantly under plants (pine, cypress, and broom) compared with control. C mic content and BR was plant dependent. Cypress sites had the highest values of C mic (214.9 μgCg −1 ) and BR (112.8 μgCO 2 -Cg −1 d −1 ) at the 3 rd year. The plant root environment clearly enhances and regulates the microbial community, in correspondence to the species used. Below ground enhanced activity could fulfill the scope of phytoremediation strategies.
ISSN:1522-6514
1549-7879
DOI:10.1080/15226514.2018.1452183