THE ROLE OF MOBILE COMPOUNDS IRON IN THE PROFILES TECHNOLOGICALLY DISTURBED SOIL

Authors

  • V. I. Chorna Dnipropetrovsk State Agrarian and Economic University
  • І. V. Wagner Dnipropetrovsk State Agrarian and Economic University

DOI:

https://doi.org/10.31548/dopovidi2016.06.003

Keywords:

pedogenesis soil, technologically disturbed soil, content of mobile iron

Abstract

Iron plays an important role in the process of pedogenesis soil. The proportion of iron forms basis of diagnosis of different types and subtypes of soils. Iron has a direct impact on the growth and development of plants, participates in the process of photosynthesis and prevents the formation of chlorosis. 120 soil samples were analyzed in the research laboratory of Hydroelology of Dnepropetrovsk State Agrarian and Economic University. The iron content was determined in accordance with GOST 27395-87 Soils. Method for determination of mobile connections ferric iron-on Verigina Arinushkina profiles technogenic disturbed soil to a depth of 100 cm every 10 cm. The reference sample was selected southern chernozemic soil. Test profiles presented an inhomogeneous mixture of ground rocks. It was established that sod-lithogenic soil to gray-green clays most secured mobile iron compounds and are similar to a reference sample. The active layer 0-10sm are weathering processes that lead to the destruction and leaching of substances in the lower layers of the profile. At this stage of the iron content of the soil depends on the soil type studied, and mixtures heterogeneity infiltration layers. The content of ferrous iron throughout the depth of the four investigated profiles of more than 60% of the iron moving. For plants dvohvalentne iron is easily accessible form for learning, which is a good indicator for their development. The ratio of mobile iron in the form of Fe2+ and Fe3+ ions is important for plants, but it can have both positive and negative consequences that may arise depending on the compounds formed. Total iron content moving in all types studied tehnozemiv increases with depth or vary, describing the heterogeneity of the layers of soil profile, except sod to soil lithogenic lesopodibnomu loam where the movable iron compounds in the majority concentrated in the 0-40 cm layer and decreased with depth, which is typical for vnutrishnohruntovoho ohleyennya that is seasonal. Iron is involved in all processes of soil formation, so establishing its quantity and distribution of the profile is important in understanding ways to restore technogenic disturbed soils.

According to the data obtained can be studied soil acidification offer to improve the availability of moving iron compounds and installation of mineral soils. It can be assumed value using mobile forms of iron for the diagnosis of technogenic disturbed soils and identify the differences between them and examine patterns of distribution of iron in the soil profile, as the model changes technogenic disturbed soil, which is a scientific interest.

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Published

2016-11-24

Issue

Section

Biology, biotechnology, ecology