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：092005
DOI：10.1088/1755-1315/194/9/092005
语种：English
出版社：IOP Publishing
摘要：There is a need to carry out recultivation of technological dumps as the territory is filled with waste of the mining and oil industry. After planning of the territory, it is necessary to create a fertile layer providing a long-term growth of perennial grasses. Turf is created under their action; it prevents the blowing of waste from the blade. Water-physical indicators are considered to be the main indicators on which the development of plants depends - the main indicator is the lowest moisture capacity. The use of homogeneous granulometric composition of soils leads to rapid loss of water and death of herbaceous plants. Therefore, it is necessary to find ways to retain water in the root zone and prevent it from flowing deep into the blade. Studies were carried out at the State Agrarian University of Northern Trans-Urals by creating experimental sites based on dark gray forest soil. As the studied material, the authors took rubble (fraction 2-3 cm); sand and low-lying peat. The introduction of coarse layers (rubble) reliably ensures the rupture of the capillary network, thereby preventing the flow of water deep into the blade. The least moisture capacity of the overlying layers increases compared with a homogeneous soil, and water supplies increased almost 2 times. The most effective is the use of rubble in soils of medium and heavy-loamy granulometric composition; rubble will provide a reliable obstacle to the downward and upward movement of water and stabilize water reserves in the root layer. When using as a fertile layer of light loams and sandy loam, it is recommended to create layered soils consisting of 1-2 layers of peat or other water-retaining materials (hydrogels, hydrophilic polymers) with good moisture capacity.
Loading...
