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For reasoned reconstruction of initial presence of various organic substrates in the soil-ground material of archaeological sites, a model experiment was performed, where the dynamics of decomposition of organic substrates of protein, lipid and polysaccharide composition by soil microbial communities was studied. The experiment was carried out on gray forest soil under optimal conditions (60% WHC, 25oC). Soil samples were enriched by one of the substrates of protein (gelatin, casein, and sheep wool), lipid (sheep ...

Humates are substances possessing high physiological activity, contributing to the photosynthetic yield in plants and having no carcinogenicity or mutagenicity. It is the combination of these unique properties that makes humates promising plant growth and development stimulators. Within the framework of the present investigation the efficiency of application of two humate products has been assessed, and a comparative analysis of their influence on the growth and development of agricultural crops has been carried o...

The article analyzes the thermal and humidity conditions of the ?arnowska Peatland, which is part of a larger complex of raised bogs located in the coastal zone of the Baltic Sea in Poland. The research was carried out on the basis of long-term changes in air temperature, atmospheric precipitation and field evaporation (1951-2015) from the synoptic station in ?eba. The mentioned indicators were used to determine their impact on the formation of seasonal variability of groundwater level on the peat bog. The climati...

The article presents the characteristics of the frequency of storms in north-western Poland (Fig. 1) from 1970 to 2017. The area of north-western Poland, selected for the research, differs in terms of the distribution of selected meteorological elements, because the climatic conditions are shaped here by an atmospheric circulation from the Atlantic Ocean, the Baltic Sea and additionally from a vast continental area. The important factors affecting the regional diversity include local conditions such as terrain, na...