HUMUS CONDITIONS OF THE PRE-DNISTERIAN PODOLIA HAPLIC CHERNOZEMS
Journal Title: Вісник Львівського університету. Серія географічна - Year 2017, Vol 51, Issue
Abstract
The humus state of chernozems typical of Pre-Dnisterian Podolia is investigated. It has been established that for the content of humus the chernozems typical of the Pre-Dnisterian Podolia are low humus (2,78–3,98 %). With depth, the content of humus decreases gradually, indicating a uniformly accumulative type of distribution of organic matter in the soil profile. It is determined that in typical chernozems the phenomenon of moderate migration of humic acids is observed, thus forming a deep humus profile. Humic content to the depth of 90–100 sm is dominated by humic acids (Cga:Cfais 1,12–1,78). The general tendency of relative “pluralisation” of the arable lay eras a result of its agronomic exhaustion has been observed. In relation to the Cga to the general organic C, the chernozems soil of the study area is characterized by a high and very high degree of humification of organic matter. It is proved that the intensity of the migration processes of humic acids decreases in the direction of strengthening the hardness of the GTK territory, due to the tightening of calcium carbonates closer to the surface of the soil. Its middle and lower parts were formed, to a large extent, by infiltration of humic acids, moreover, mainly due to the calcium humates. In the case of the use of chernozems without the use of organic fertilizers, the processes of mineralization of plant residues and humus are more active, and the balance of humus is scarce. However, when applying a setoff measures, you cannot only prevent loss of humus but also increased their content. Such a complex should include the following measures: soil replenishment with organic substances, in particular, the planting of perennial grasses and sown crops, the abandonment of a high erg rain of grain; minimizing cultivation; creation of optimal ratios of crops in crop rotation to reduce humus losses; the application of meliorants, which would ensure the strengthening of soil fixation of newly formed humus substances.
Authors and Affiliations
Andriy Lisovskiy, Vladyslav Harbar
ECONOMIC AND GEOGRAPHICAL FACTORS OF TOURISM DEVELOPMENT OF EASTERN UKRAINE DURING THE CONFLICT
The article analyses the influence of economic and geographical factors on the development of tourism in the east of Ukraine during the conflict period. In order to achieve the goal the economic situation in the Luhansk...
GEOGRAPHICAL LAWS OF THE SOIL DISTRIBUTION OF PRE-GORGANIAN PRE-CARPATHIAN REGION
Being part of the Pre-Carpathian Region, Pre-Gorganian Carpathians are situated between the Svicha River in the northwest and the Lychka River in the southeast. Taking into account the analysis of soil maps, the computer...
SOLONSKE SECTION AND THE PERSPECTIVES OF THE COGNITION OF LOYEVA LEVEL
New geological and geomorphological investigations carried out in different parts of the Fore-Carpathian region of the Dnister River basin gave an opportunity to distinguish at least four separate different-age levels (t...
SOURCE DEGRADATION – GLOBAL ENVIRONMENTAL PROBLEM
On the basis of generalization of literary sources, normative legal, stock materials and experimental data, the complex situation of soil degradation is highlighted. Different types and intensity of the manifestation of...
REDOX POTENTIAL CHANGE OF LIGHT GREY FOREST SURFACE-GLEYED SOILS DEPENDING ON THE LONG-TERM ANTHROPOGENIC IMPACT
Influence of prolonged application of various fertilizer systems and periodic liming on the dynamics of redox potential (ROP) of light grey forest surface-gleyed soils under different crop rotations is presented in the r...