Μελέτη των επιπτώσεων των ρύπων σε οργανισμούς του εδάφους

• Main Authors: Οικονόμου, Λεωνίδας, Economou, Leonidas
• Format: Doctoral or Postdoctoral Thesis
• Language: Greek
• Published: Agricultural University of Athens 2012
• Subjects: Ρύπανση εδάφους; Βαρέα μέταλλα; Υγρά απόβλητα ελαιουργείων; Εδαφικό οικοσύστημα; Μικροβιακή δραστηριότητα; Νηματώδεις; Μικροαρθρόποδα; Folsomia candida; Soil pollution; Heavy metals; Olive oil mill wastewater; Soil ecosystem; Microbial activity; Nematodes; Microarthropods; Φυσικές Επιστήμες; Γεωεπιστήμες και Επιστήμες Περιβάλλοντος; Natural Sciences; Earth and Related Environmental Sciences; Mite; Springtail
• Online Access: http://hdl.handle.net/10442/hedi/29996; https://doi.org/10.12681/eadd/29996

In this thesis it was studied the effect of soil pollution by metals and olive oil mill wastewaters on soil organisms (nematodes, microarhropods, microbial activity). The experimental part of this thesis is divided into two sections. In the first section, two studies were carried out. In the first study of this section, it was studied, in edaphic mesocosm trials, the effect of copper (at the dose rates of 100, 500 and 1000 mg/Kg soil) and cadmium (at the dose rates of 20, 100 and 200 mg/Kg) in soil organisms (nematodes, mites, springtails) and in soil microbial activity. Copper decreased both basal and substrate reduced respiration, without a clear dose response effect. Microarthropod numbers decreased with increasing dose of Cu, except than Prostigmata where population decreased only at the two higher doses. Nematode population of all trophic groups as well as most of the genera decreased at the two higher Cu doses. Nematode maturity index (MI), and total index (ΣMI) decreased at the two higher Cu doses, while the index SMI 2-5 decreased only at the higher dose. Indexes of plant parasitic nematodes (PPI), structure (SI), channel (CI) and basal (BI) weren't affected by Cu addition, while Cu addition increased enrichment index (ΕΙ). Shannon index of diversity (Η') and Margalef index of richness (R1) increased at the dose rate of 500ml/Kg· index of evenness of Hill (E5) increased at the higher dose, while Simpson index of dominance (λ) decreased at the dose rate of 500mg/Kg. Cadmium decreased both basal and substrate reduced respiration. Mite populations were decreased with increasing Cd dose, while Cd addition decreased springtail populations, but without differences among doses. Even if some nematode genera weren't affected significantly, the population of all trophic groups decreased in the two higher Cd doses. The indexes ΜΙ, ΕΙ, CI and BI weren't affected significantly by Cd addition, while the indexes ΣΜΙ, ΣΜΙ 2-5 and SI decreased only in the two higher Cd doses. Finally indexes H', λ, R1 and Ε5 weren't ...