CHANGE OF GRANULOMETRIC COMPOSITION OF DRAINED SOILS OF MALE POLISSIA IN THE CONTEXT OF DEVELOPMENT OF DEGRADATION PROCESSES
Journal Title: Вісник Львівського університету. Серія географічна - Year 2018, Vol 52, Issue
Abstract
Sod-podzolic (Albenuvisoils Gleyic), meadow (Gleyic Chernic Phaeozems) and sod (Arenosols) soils are typical for Male Polissia. In the natural state, these soils are waterlogged, characterized by unsatisfactory physical properties, unsuitable for agricultural use. After the drainage reclamation, the soils are intensively used as arable land, pastures, and hayfields. The drainage has led to a significant decrease in groundwater levels, increased the washing water regime, intensified the processes of lessivage, which affected the physical properties of soils, in particular, granulometric composition. In the reclaimed areas, aridification and deflationary processes intensified. In deflated sod-podzolic soils, the relief of granulometric composition has been reducing due to decrease in the content of sludge and fine dust in the arable horizons. Granulometric composition of soils undergoes more significant transformations as a result of the intensification of flushing water regime after drainage. The content of physical clay in the arable horizon of sod-podzolic fixed- sandy soils decreased by 1.63 %, and of the sandy loam soils – by 5.30–6.20 %. In the humus-accumulating arable horizon of meadow soils, the physical clay content decreased by 2.40–1.60 %, that of sod soils – by 1.27–6.39 %. Washing off with drainage waters of small granulometric fractions results in an increase in the content of sand fractions and facilitates the granulometric composition of soils, changes in soil gradation at the level of variety. Decrease in the content of physical clay causes deterioration of physical, physical-and-chemical, agronomic properties of soils, and therefore causes the development of degradation processes: non-structural, deflation, dehumification, degradation of water and air and nutrient regimes, aridification. This gave rise to the idea of referring to the granulometric composition facilitation of drained soils as “granulometric degradation” and classifying it as physical degradation of soils.
Authors and Affiliations
Volodymyr Haskevych
Keywords
Related Articles
- EP ID EP537212
- DOI 10.30970/vgg.2018.52.10167
- Views 93
- Downloads 0
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...
CHANGE OF GENERAL PHYSICAL PROPERTIES OF UKRAINIAN CARPATHIANS BUROZEMS (CAMBISOLS) UNDER THE DIFFERENT PHYTOCOENOSES
Physical properties of soils determine the ecological status of forest ecosystems, in particular, virgin forest. In turn, the development of the plants' root system, the nature of the soils’ moisture and nutrient regimes...
FORESTRY LAND USE OPTIMIZATION ON THE MOUNTAINOUS TERRITORY IN UKRAINIAN СARPATHIANS (TERLO COMMUNITY IN STARY SAMBIR DISTRICT IN LVIV REGION)
In this research, characteristics of the forestry land use within a typical mountainous territory of the Terlo community were explained. Local economic and natural processes were characterized and connections between for...
PALAEOGEOGRAPHICAL CONDITIONS OF THE FORMATION OF THE CHANNEL ALLUVIUM OF THE HIGH (SUSIDOVYCHI) TERRACE OF THE DNISTER RIVER IN THE KULAKIVTSI SECTION (PODILLIA-DNISTER REGION)
The main lithological characteristics of the channel facies of the Susidovychi terrace, which correspond to the high (situated over the canyon) groups of Dnister terraces, were given. The investigations in the gravel pit...
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...