Demonstrational gardens with EDTA-washed soil. Part II: Soil quality assessment using biological indicators

Autor: Damijana Kastelec, Domen Lestan, Irena Maček, Simon Gluhar, Anela Kaurin
Rok vydání: 2021
Předmět:
010504 meteorology & atmospheric sciences
Urease
čiščenje tal
Root system
010501 environmental sciences
01 natural sciences
Soil respiration
Soil
težke kovine
Mycorrhizae
Soil Pollutants
soil functioning
Waste Management and Disposal
Environmental Restoration and Remediation
Soil Microbiology
očiščena tla
talni mikroorganizmi
biology
Environmental Biomarkers
arbuscular mycorrhiza
Chemistry
pranje tal
Gardening
cink
Pollution
Soil contamination
enzyme activity
remediated soil
Arbuscular mycorrhiza
Horticulture
kemična sestava
Environmental Engineering
biološke lastnosti tal
Environmental remediation
vrtnine
arbuskularna mikoriza
microbial respiration
soil biological properties
Environmental Chemistry
udc:631.4
Edetic Acid
0105 earth and related environmental sciences
remediacija
svinec
biology.organism_classification
Soil quality
varna hrana
talni encimi
Soil water
biology.protein
kadmij
Zdroj: Science of the total environment, vol. 792, 148522, 2021.
ISSN: 1879-1026
0048-9697
Popis: In this study, we evaluated the impact of washing of Pb, Zn and Cd contaminated soil using EDTA-based technology (ReSoil®) on soil biological properties by measuring some of the most commonly used/sensitive biological indicators of soil perturbation. We estimated the temporal dynamics of the soil respiration, the activities of soil enzymes (dehydrogenase, β-glucosidase, urease, acid and alkaline phosphatase), and the effect of the remediation process on arbuscular mycorrhizal (AM) fungi in original (Orig), remediated (Rem) and remediated vitalized (Rem+V) soils during a more than one-year garden experiment. ReSoil® technology initially affected the activity level of soil microbial respiration and all enzyme activities except urease and reduced AM fungal potential in the soil. However, after one year of vegetable cultivation and standard gardening practices, soil microbial respiration, acid and alkaline phosphatase in the Rem and Rem+V reached similar activities as in the Orig. Only the activities of dehydrogenase and β-glucosidase remained lower in the remediated soil compared to the Orig. The frequency of arbuscular mycorrhiza in the root system, arbuscular density in the colonized root fragment, and the intensity of mycorrhizal colonization in the colonized root fragments in the remediated treatments increased with time; at the end of the experiment, no consistent differences in these parameters of mycorrhizal colonization were found among the treatments. Our results suggest a restored biological functioning of the remediated soil after one year of vegetable cultivation. In general, no differences were found between the Rem and Rem+V treatments, indicating that simple common garden practices are sufficient to restore soil functioning after remediation.
Databáze: OpenAIRE
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