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assessment
of soil-ecological condition, creation of maps give good results in the
reclamation process [10].
As a result of iron ore mining, soils are contaminated with iron compounds, some
other heavy metals and perennial grasses, legumes and cereals have yielded high results
in carrying out appropriate reclamation measures.
As a result of urbanization, soils
have been damaged over large areas. In their biological reclamation, measures should
be taken
in a sequential, comprehensive manner. In particular, reclamation activities
were carried out on the basis of a classification that includes 13 different activities in
the form of chemicals, water, plants, forests.
Reclamation of man-made lands should take into account the following.
- detection and inspection of man effected degraded lands;
- together with land users to determine the direction of reclamation;
- Development of a reclamation project.
In the reclamation of land in a large area, a separate project should be developed,
taking into account every small aspect. It should consist of three parts: an explanatory
letter, a technical part, and a substantiated cost estimate.
Some scientists believe that man-made degraded soils can remove organic pollutants
by water flow; recommended detection and biological treatment of contaminants [11].
The growth of grain crops in man-made degraded soils has led to good results,
in which the chemical properties of the soil have been improved.
In developing regional regulations for the reclamation of lands disturbed by man-
made impacts, it is necessary to maximize the ecological condition of the region, take
into account the natural and climatic conditions and the nature of the application of
technology, form an objective and effective environmental expertise and legislation.
Reclamation measures are recommended by studying the
microbiological properties
and physical properties of chemically contaminated soils.
Conclusions
1. As a result of man-made degradation of soils, the amount of heavy metals in the soil
exceeded the REChU index. Man-made degradation of soils has negatively affected
soil properties and the ecological condition of the area.
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2. The combined use of technical and biological methods in the reclamation of soils of
the study area is highly effective. Alfalfa, barley, raygras are recommended for use in
the reclamation process.
3. According to the economic analysis of reclamation
of man-made disturbed soils,
such lands should be reclaimed as soon as possible, because if irrigated soils in need
of reclamation are not reclaimed for a long time, so much economic damage will be
done to agriculture. Also, every time spent on reclamation
increases the cost of
economic expenditure, so it is recommended to study
and recultivate man-made
disturbed soils in a short time.
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