The search for bacteria adapting to extreme soil moisture conditions and the assessment of the effects of hydric stress on the quality of the soil environment

The aim of this study was to identify the biological activity in fluvisols from the Vistula River valley (Lubelskie Voivodeship) subjected to the stress of a simulated flooding. The study material consisted of two different fluvisols (light - F1; medium - F2) sampled in two variants: agriculturally used (blackcurrant cultivation; -A), and not cultivated (meadow; -M). Soils taken in the form of soil blocks, which were placed in transparent containers and then simulated flood conditions by flooding them with river water to the height of 5 cm above the soil surface, were used for the model experiment. The water stagnation was maintained for 14 days. For analyses, samples were taken after 2, 4, 7, 9, 12 and 14 days from flooding as well as fresh soils.

本研究旨在探究波兰卢布林省维斯瓦河谷地区受模拟洪水胁迫的冲积土（Fluvisols）中的生物活性。试验材料取自两类不同的冲积土：轻质地冲积土（F1）与中质地冲积土（F2），每类土样均设置两种土地利用模式：农业种植模式（种植黑加仑，标注为-A）与未耕作的草地模式（标注为-M）。本模型试验采用原状土块作为供试土壤，将其置于透明容器中，随后以河水浸没至土壤表面以上5 cm处，以此模拟洪水胁迫环境，并持续保持积水状态14天。为开展相关分析，分别于淹水后第2、4、7、9、12、14天采集土壤样本，并同步采集未处理的新鲜土壤作为对照。