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Identifier

000419450

Title

Αξιολόγηση του αλόφυτου Salsola soda ως εναλλακτική καλλιέργεια σε υποβαθμισμένα εδάφη με την χρήση αρδευτικού νερού υψηλής αλατότητας

Alternative Title

Evaluation of halophyte Salsola soda as an alternative crop in degraded soils using high salinity irrigation water

Author

Μαρκάκης, Νικόλαος Π.

Thesis advisor

Θρασύβουλος, Μανιός

Thesis advisor

Κανακίδου, Μαρία
Περγαντής, Σπύρος

Abstract

In many dry and semi-dry areas around the world, high levels of soil salinity are a driver of degradation. Combating soil degradation and corrosion associated with its salinity requires experimental identification of plant species that can grow in soils with high levels of salinity. In this study we will evaluate the response of Salsola Soda (alumina) to soils with high salinity. We will evaluate the growth response of this plant species at various levels of NaCl salinity (EC: 0, 40 mM, 120 mM) and on three different substrates: (a) optimal substrate, (b) coastal soil and (c) degraded greenhouse soil. In addition, the use of these plants for the phytoremediation, of soil contaminated with metals has been investigated and it has been found that the halophytes species can be used in soil-phytoremediation accumulation of heavy metals in their plant tissue. In practice, the plants that accumulate the metals are planted in the contaminated soil and cultivated according to conventional cultivation techniques. In recent years, there has been a growing interest in the use of Aloe Vents because of their resistance to high concentrations of salinity and heavy metals and hence the prospect of their use on saline soils that are often polluted and heavy metals. In the present study we will evaluate the absorption of metal ions in the above-ground part of Salsola Soda halophyte. In the context of the thesis, Salsola soda was cultivated for two months in a greenhouse on different substrates and with different salinity treatments. Plant biomass, salinity indexes, nutrients in the substrates and the plant, and the absorption of metal beaks from plant tissue were evaluated. From the results it is clear that the halophyte Salsola soda is capable of restoring soils with high salinity and increased concentration of metals, since these soils have the necessary macro-nutrients for the growth of the plants.

Language

Greek

Subject

Greenhouse

Heavy metals

Production yield

Soil-phytoremediation

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