期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：194
期号：9
页码：092007
DOI：10.1088/1755-1315/194/9/092007
语种：English
出版社：IOP Publishing
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.
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