Salt content in the rock of Donbass mining dumps

The content of nitrates, chlorides, and sulfates in the substrate of three model landscaped landfills and a self-grown rock dump was determined. The total content of the studied salts is: for the dump of mine 6/14 – 0.79 % on the northern slope and 0.82 % on the southern slope; for the dump of mine 5/6 – 0.84 % on the northern and 0.69 % on the southern; for the dump of the Zaperevalnaya mine – 0.74 % on the northern and 0.79 % on the southern; for the dump of mine No. 9 Capitalnaya – 0.75 % in the north and 0.73 % in the south. The substrates of the dumps belong to the category of medium-saline. Due to the differences in the composition of the composing rocks and the species diversity of vegetation growing on the dumps, differences in the percentage of salts on the northern and southern slopes of the dumps are statistically significant at a low level of significance (p = 0.29–0.5).