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The paper presents results of studies concerning determination of habitat conditions on the inpeatland dunes located in the Biebrza River Valley and Narew River Valley with the application of the synthetic habitat quality values calculated on the basis of laboratory analyses and plant communities studies. The Forest Soil Trophism Index (ITGL) shows that studied soils are mesotrophic, but according...
This paper presents results of moisture, oxygen and reduction conditions in peat-muck soils in Sępopol Lowland and their effect on the mineralization rate of organic nitrogen compounds. MtIICi41 soil under extensive grassland management and MtIICgy49 arable soil were characterized by low oxidation-reduction potential and low oxygen diffusion intensity. The mineralization rate of nitrogen organic compounds...
In the work organic C stocks (SOCs) in soils of arable lands and grasslands of Ciężkowickie Foothills were compared. SOC stocks in soils of grasslands were higher than in soils of arable lands in all compared pairs of profiles and soil layers (0-30, 30-60, under 60 cm). Besides way of use, a quantity of SOC stocks and their distribution in soil profiles were influenced by soil textures.
Studies of organic carbon content and humus fraction composition were carried out on a fallow land agro-meliorated with sewage sludge. The sewage sludge layers (of 0 cm - control, 10, 20, and 30 cm thickness) were put beneath the ploughing layer (25 cm). The soil samples were collected from 0-25, 25-50, and 50-75 cm depths for measurements after 4 years of the experiment. Applied sewage sludge had...
This paper investigates the nitrogen balance and the possibilities of equalizing it using different fertilizing systems. The estimation of optimum fertilizing schemes in crop rotation systems (with a 50% share of cereals) may cause an increase in the yield of agricultural plants, as well as improvements in the physical and chemical properties of the soil.
The aim of this study was to evaluate the possibilities of using the SIG (Site Soil Index) for assessing the variability of the soil-site conditions on reclaimed and reforested spoil heaps of the lignite mining plant KWB ‘Bełchatów’. The studies were arranged on 4 substrate variants of the built up external and internal spoil heaps: on barren Quaternary sands (NWG), potentially abundant Quaternary...
Soil organic matter (SOM) is an essential soil constituent, influencing soils’ physical, chemical and biological properties. Recently, a growing interest in looking for alternative sources of organic matter, such as for example brown coal waste material and compost has been observed. It was found that brown coal waste material or cow manure, 10 years after application in soil resulted in changes in...
This work describes the fractional composition of acid formed humus based on physical-chemical and chemical properties in the Mollic Phaeozems Arenic and Mollic Gleysols Arenic. Sand and sandy loam with a decalcification feature dominates in terms of texture. Reactions of the studied soils range from strong light acid to alkaline. The organic O horizon and humic A horizon are very rich in C total...
The aim of the study was the assessment of motorization influence along national road No. 8, in the section of Białystok-Augustów, on the heavy metals accumulation in soils and plants. The research was conducted on soils under different used (forest, meadows, arable areas, wasteland) and herbaceous plants sampled along the road. Soil and plant samples were taken in 9 sites, in four distances from...
The aim of the study was to determine the activity of dehydrogenases and urease in forest soil before and after the blowdown. The research was a continuation project which was carried out in 2007-2010. The research was carried out in the Przedbórz Forest Inspectorate. Statistically significant differences in enzyme activity were observed in the soil taken before and after the blowdown. The lowest...
The aim of the present research was to estimate the long-term effect of soil management in orchards on selected physicochemical properties of humus substances isolated from Luvisols. It involved determining basic parameters of humic acids extracted from soils. Samples from topsoil were collected from apple tree orchards and arable soils in the Chełmińskie and the Krajeńskie Lake Districts. The humus...
Organic, mineral and combined organic and mineral fertilization systems have been compared in a static field experiment set up on brown soil in 1973. Each fertilization system caused an increase in the content of nitrogen and organic carbon in soil. Both in limed and unlimed soil, humic acids prevailed over fraction I fulvic acids, but soil liming caused an increase in the Ckh:Ckf ratio. Among the...
The objective of the study was to estimate transport of dissolved organic carbon from the area of cormorant colonies located in northern Poland. The investigations were carried out on two morphologically differentiated colonies located on lake islands. In the case of the colony characterised by significant slope inclination – the main path of transfer of water and DOC was surface runoff. During the...
The aim of the paper was to determine the effect of soil pollution with polycyclic aromatic hydrocarbons (PAHs) on the content of carbon, nitrogen and the share and content of dissolved organic carbon (DOC) and dissolved nitrogen (DNt). The study was carried out based on soil samples (Luvisols, Phaeozems, Haplic Arenosols, Fluvisols) representative of the Kujawsko-Pomorskie Region.Soil samples were...
The aim of the study was to analyze the fractional composition of humic compounds in ectohumus O and humus A soil horizons in two forest associations: Galio Sylvatici-Carpinetum and Alno-Ulmionin relation to chosen physical-chemical properties of soils.The following analyses were performed on collected soils samples: texture, pH in 1mol KCl dm⁻³, exchangeable acidity, organic C, N total, the contents...
Fragipan horizon (Btx) is a natural, subsurface soil horizon showing higher bulk density and lower porosity in comparison with overlying soil horizons. As a consequence, the fragipan exhibits slow water permeability, which has a clear impact on the water retention ability of soils. It also significantly increases the rate of soil erosion. Primary objectives of the study included: 1) explanation of...
The aim of the study was to qualify the influence of the agricultural use on the content of sulphur and its distribution in the soil profile. The content of total and organic sulphur was higher in the soils of grassland than in arable soils. Such regularity was not affirmed in the case of sulphate sulphur. The content of total S and organic S was conditioned by the quantity of organic C and total...
Soil acidity, as a natural process in the moderate climate, is strengthened by the activity of anthropogenic factors. It progresses from the surface deeper into the soil profile and is based on giving a specific direction to the chemical and physical-chemical processes. This direction is related to the concentration of hydrogen ions. The research was carried out under the assumption that the differentiated...
This paper describes the fractional composition of humus substances and the physico-chemical and sorptive properties of Mollic Umbrisols Arenic, Mollic Gleysols Arenic and Phaeozems Arenic of the Milicz-Głogów Depression. The following analyses were performed on collected soils samples: granulometric composition, pH in 1mol KCl dm⁻³, hydrolytic acidity (Hh), TOC, Nt, CaCO₃, content of exchangeable...
The impact of introduced (cherry laurel, black pine) and indigenous (oak-hornbeam, spruce, yew) trees on soil organic matter (SOM) characteristics(total, labile and hot water soluble carbon, total nitrogen content -NT, and humus quality)in Arboretum Mlyňany, Slovakia, was studied. Original growth was oak-hornbeam forest the rest of which was chosen as a control. The results showed thatintroduced and...
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