Methods for recovering natural values of degraded agricultural areas

Abstract

The paper discusses soil recovering and remediation methods. It describes process for carrying heavy metals (HM) into forms inaccessible to plants, with particular emphasis on the method of stabilising chemical forms of HM in soil, methods of partial removal of HM from soil (phytoremediation, phytodegradation and bioremediation) and land usage change. It points out the benefits of using nanotechnology in environmental protection and the possibility of using hybrid nanocompounds to solidify heavy metals regardless of soil pH. Soil liming is the cheapest effective and commonly used method for immobilising heavy metals. In the case of phytoremediation, the negative factor is its very long duration and the problem of utilisation of contaminated biomass.