Theoretical framework of sand pits recultivation in Western Siberia

International Conference on Innovations and Prospects of Development of Mining Machinery and Electrical Engineering 2018

矿业工程;电工学

Eremina, Diana^1

State Agricultural University of Northern Trans-Ural, Respubliki 7, Tyumen

625003, Russia^1

关键词: Artificial soils;    Component composition;    Ecological state;    Fertile soil layer;    Granulometric compositions;    Herbaceous plants;    Nonmetallic minerals;    Theoretical framework;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/194/9/092007/pdf
DOI  :  10.1088/1755-1315/194/9/092007

来源: IOP

【 摘 要 】

Mining of non-metallic minerals by an open method inevitably leads to disruption of the ecological state of the territory. After development of quarries, a stage of their reclamation comes, which has to prevent development of erosion processes, to provide restoration of vegetation. The biological stage of reclamation of sand pits is due to the creation of a fertile soil layer and the sowing of perennial grasses. Traditional artificial soil used in the reclamation of quarries is considered peat-sand mixture. However, it initially has adverse physical, mechanical and water-physical properties. Its use leads to a rapid washout of peat and nutrients, which leads to the death of sown perennial grasses. The proposed method for creating an artificial fertile soil mix is based on simulation of the most fertile soils of heavy granulometric composition. The ratio of the component composition of artificial soil mixture was determined by mathematical modeling. The resulting soil mixture had the properties of a humus layer of black soil and was resistant to erosion processes. The ratio between sand, peat and clay was 1:2:7, respectively. To improve the nutritional regime after mixing 100 kg of the mixture, 0.5 kg diammophoska and 0.2 kg of dolomite are added. The created experimental sample of the soil was characterized by a medium loam composition, the optimum acid-alkaline characteristics (pH 6.5) and balanced nutrition for herbaceous plants.