The journal was founded in 1968 as a semi-annual magazine published in English by the 5th Faculty of Agricultural Sciences, Forestry and Veterinary of Polish Academy of Sciences in Warsaw. Editorial address was from the very beginning in the Department of Soil Science of the Maria Curie -Sklodowska University in Lublin. The magazine was assumed complementary with "Annals of Soil Science". (“Roczniki Gleboznawcze”), published in Polish, quarterly, by the Main Board of the Polish Society of Soil Science. The recipient of the journal were foreign soil science centers and academic libraries in several countries around the world, including units cooperating with Polish Academy of Sciences. Points MEiN: 40 ISSN: 0079-2985 e-ISSN: 2449-8254 Submitted articles rejection rate : approx. 20%
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Variability of Some Physical Properties of Limnic Rendzinas in the Mazurian Lakeland (NE Poland)
The variability of some physical properties of limnic rendzinas in the Mazurian Lakeland are discussed in the paper. For the study, six sites (68 soil carbonate samples) in NE Poland were examined in terms of their physical properties: total porosity, specific density, wet and dry bulk densities, volumetric and gravimetric water content. Moreover, the content of organic matter, CaCO3 and non-calcareous fractions were also analysed to determine the type of soil calcareous sediments, and on this basis, three groups were isolated: calcareous gyttja, meadow limestone, lacustrine chalk. The highest values of specific and bulk densities were stated in lacustrine chalk, whereas the lowest ones – in calcareous gyttja. The highest total porosity was noted in calcareous gyttja, and the lowest one in meadow limestone. Lacustrine chalk and calcareous gyttja had the highest water content, and the differences between physical properties and soil calcareous materials were statistically significant. However, the differences between soil physical properties in surface soil horizons and calcareous materials were not statistically significant. Correlation coefficients showed that there were statistical dependencies between the examined soil properties, and the principal component analysis proved that soil physical properties were dependent mainly on organic matter.
Copyright (c) 2023 Paweł Sowiński, Sławomir Smólczyński, Barbara Kalisz, Mirosław Orzechowski, Arkadiusz Bieniek http://creativecommons.org/licenses/by/4.0
Ecological Risk Associated with the Occurrence of Heavy Metals in Agricultural Soil in Soc Trang Province, Vietnam
The study aimed to evaluate the content and potential ecological risks due to the presence of toxic elements (Pb, Cu, Cr, Zn, As) in agricultural soil in Soc Trang province. Data of five heavy metals and physical factors at eight sites (from D1 to D8) in three ecological zones (fresh, brackish and saline agricultural activities) in the study were collected from the Department of Natural Resources and Environment of Soc Trang province. Multivariate statistical analyzes, including principal component analysis (PCA), correlation analysis (Pearson), cluster analysis (CA) and potential ecological risk index (RI), were used in the study. The results showed that the content of Pb, Cu, Cr, Zn and As fluctuated in the range of 8.54–30, 21.90–28.10, 20.60–38.70, 46.80–86, 1.35–11.30 mg/kg, respectively, within the allowable limits of QCVN 03-MT:2015/BTNMT. The soil in the study area has moderate to neutral acidity, suitable for growing crops. The Pearson and PCA results showed that the inputs in local agricultural development (fertilizers, pesticides, fungicides, and herbicides) have contributed to the increase of heavy metal content in the soil. The results of the CA grouped eight soil samples into two large groups belonging to the ecological areas (brackish, saline) and freshwater. The mean RI value of 68.84 indicated low potential ecological risks in agricultural land in Soc Trang province. However, As and Cr are heavy metals that would pose significant potential risks to the environment and humans. Thus, measures are needed to strictly control the sources of these metals.
Copyright (c) 2023 Nguyen Thanh Giao, Huynh Thi Hong Nhien http://creativecommons.org/licenses/by/4.0