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Soil degradation occurs as a result of the ingress and accumulation of excessive amount of pollutants in the soil. The article presents the results of theoretical and experimental studies of the complex effect of soil contamination (concentration of petroleum products, toxic salts, dense residue, sodium ions, sulfate ions, magnesium ions, calcium, chloride ions, bicarbonate ions) on the content of...
The work presents regression equations derived from studies of eight eutrophic lakes in NE Poland. Spring phytoplankton biomass was found to be inversely correlated with its photosynthetic activity, and with the total nitrogen: total phosphorus ratio, as well as being correlated positively with primary production and the biomass of diatoms. Summer biomass was dependent on spring concentrations of...
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