Possibilities for utilization of heavy metal polluted soil

Mihajlov, Ljupco and Kovacevik, Biljana and Markova Ruzdik, Natalija (2019) Possibilities for utilization of heavy metal polluted soil. In: 1st Scientific Conference for Creating sustainable transffer of knowledge for building novel ideas for critical environmental issues of the Western Balkan Countries, 28-30 Oct 2019, Stip, Republic of North Macedonia.

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Abstract

The reduction of arable land and the increase of contaminated soil due to industrialization and mining occupies the attention of scientists in finding solutions for soil utilization. The use of plants to accumulate heavy metals (HM) from the soil has been recognized as the most economically- and ecologically-friendly alternative. Different plants have different potential to uptake HM. The ability to take up and tolerate metals varies between and within species as well as between metals. Most of the data in the literature focused on hyperaccumulating properties of plant and not paying enough attention to excluders - plants with low accumulating abilities tolerant to high concentrations of HM in soil. Although promising, phytoremediation using natural hyperaccumulators has not achieved its predicted potential as a commercial technology due to the physical limitations of the natural hyperaccumulators like their slow grow, low-biomass production, specific ecology, and climate requirements, specific requirements for soil characteristics, water regime, etc. Another more promising strategies are to plant low accumulated crops on HM polluted soil to produce safe food or to plant fast-growing, high-biomass-producing non-hyperaccumulating plant species like rooting woody species willow (Salix spp.) and poplar (Populus spp.) which can accumulate HM from the dipper soil layers due to their deep root system. The review focused on positive and negative sites of some strategies for utilization of HM polluted soil that differ in the type of the employed plant.

Item Type: Conference or Workshop Item (Poster)
Uncontrolled Keywords: hyperaccumulators, excluders, phytoremediation, plant species
Subjects: Agricultural Sciences > Other agricultural sciences
Divisions: Faculty of Agriculture
Depositing User: Biljana Kovacevic
Date Deposited: 05 Nov 2019 13:11
Last Modified: 05 Nov 2019 13:11
URI: http://eprints.ugd.edu.mk/id/eprint/22762

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