Change in the pedological characteristics of the deposol at reclamation

Abstract

The research on the reclamation of deposol (degraded soil) in the lignite mine Stanari has been performed since 2007. In a three-year period, agrotechnical and biological reclamation measures were implemented on the experimental plot. During the cultivation of crops, mineral fertilisation and liming were performed. The conducted research includes the change in the basic physical and chemical characteristics in the surface layer of meliorated deposol. The analyses were performed in 2009 and 2011. Changes in texture were observed by lowering the clay fraction. Significant improvement of the chemical reaction of the soil was not confirmed. Slight increase in concentration of the plant available phosphorus (P2O5) and potassium (K2O) is a result of the application of mineral fertilisers. Adsorption capacity and degree of saturation of base cations in the meliorated deposol were increased. The content of trace elements was reduced at the end of the test period. The presence of toxic elements is below the allowable limit. On the experimental plots where reclamation measures were implemented, there is improvement in physical and chemical characteristics of the meliorated deposol.

Keywords

• meliorated deposol
• physical and chemical characteristics
• biological reclamation
• stanari