The results of field, analytical, and experimental research at a number of production facilities reflect the properties of oil-contaminated soils in 3 landscapes: the permafrost treeless Arctic ecosystem, boreal forest, and temperate-climate grassland-woodland ecotone. Laboratory studies have revealed the concentrations of petroleum hydrocarbons in soils, ranging from medium levels of 2000–3000 mg/kg to critical figures over 5000 mg/kg, being 2–25 times higher than the permissible content of oil products in soils. The experimentally applied thermal effects for the oil products desorption from the soil allowed finding an optimal regime: the treatment temperature from 25 to 250 °C reduces the concentrations to an acceptable value. The conditions are environmentally sound, given that the complete combustion point of humates is ca. 450 °C. The outcomes suggest the eco-friendly solution for soil remediation, preserving the soil fertility in fragile cold environments and in more resilient temperate climates, where revitalized brownfields are essential for food production.

许多生产设施的实地、分析和实验研究结果反映了 3 个景观中石油污染土壤的特性：永久冻土无树木的北极生态系统、北方森林和温带气候草原-林地交错带。实验室研究表明，土壤中石油烃的浓度范围从 2000-3000 毫克/公斤的中等水平到超过 5000 毫克/公斤的临界值，比土壤中石油产品的允许含量高 2-25 倍。从土壤中解吸油产品的实验应用热效应允许找到最佳方案：25 至 250 °C 的处理温度将浓度降低到可接受的值。考虑到腐植酸盐的完全燃烧点大约为 450℃。