Keyword: «soil»

Analysis of land Volgograd region for basic types of landscapes, which form the landscape and ecological districts.

In article the data about the content of soluble mobile forms of heavy metals (copper, zinc, iron) in soils and growing on them herbaceous vegetation in the vicinity of inactive and waste quarries for extraction of copper and iron ores of the Bashkir Zauralye. Assessment of the degree of pollution of the investigated soils has allowed to carry them to a valid category. Herbaceous vegetation that grow in soils near quarries Kul-Yurt-Tau, Tubinsk, Mindyak, experiencing toxic effect of iron.

The paper gives an assessment of the hydrocarbon state of soils from the territory of natural objects and in the area of possible technogenic impact of tank farms. According to the change in the chemical composition of hydrocarbons in soil extracts, deviations in the composition of soils in the area of tank farms from the natural geochemical background were established. This is expressed in an increased content of petroleum hydrocarbons, a bimodal distribution of n-alkanes with an additional maximum in the low molecular weight region, higher values of the isoprenoid/n-alkanes ratio, low values of the odd CPI coefficient and the presence of traces of aromatic hydrocarbons. All this may indicate a change in the natural background due to the high mobility of petroleum hydrocarbons with flood, rain and seasonal melt waters and atmospheric transport even at a distance from operating technogenic objects.

The authors of the article present the experience of organizing a scientific research workshop for students of a secondary school within the framework of school – university interaction on the basis of school laboratories with the involvement of researchers and university teachers as supervisors, consultants, reviewers of students' works. The stages of cooperation between the project partners are considered and a description of the work of students at the designated stages of the project is demonstrated, starting with a motivational letter, including field work, and presentation of research results.