Abstract Abandonment of agricultural lands in recent decades is occurring mainly in Europe, North America and Oceania, and changing the fate of landscapes as the ecosystem recovers during fallow stage. The objective of this study was to find the impact of secondary succession in abandoned fields on some parameters of acidic sandy soils in the Borská nížina lowland (southwestern Slovakia). We investigated soil chemical (pH and soil organic carbon content), hydrophysical (water sorptivity, and hydraulic conductivity), and water repellency (water drop penetration time, water repellency cessation time, repellency index, and modified repellency index) parameters, as well as the ethanol sorptivity of the studied soils. Both the hydrophysical and chemical parameters decreased significantly during abandonment of the three investigated agricultural fields. On the other hand, the water repellency parameters increased significantly, but the ethanol sorptivity did not change during abandonment. As the ethanol sorptivity depends mainly on soil pore size, the last finding could mean that the pore size of acidic sandy soils did not change during succession.

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废弃田次生演替对酸性砂土某些性质的影响

摘要 近几十年来农业用地的废弃主要发生在欧洲、北美和大洋洲，随着休耕期生态系统的恢复，景观的命运发生了改变。本研究的目的是找出废弃田地的次生演替对 Borská nížina 低地（斯洛伐克西南部）酸性沙质土壤的某些参数的影响。我们调查了土壤化学（pH 值和土壤有机碳含量）、水物理（吸水性和水力传导率）和拒水性（水滴渗透时间、拒水性停止时间、拒水性指数和改良拒水性指数）参数，以及研究土壤的乙醇吸附性。在三个被调查的农田废弃期间，水物理和化学参数均显着下降。另一方面，拒水性参数显着增加，但乙醇吸附性在废弃期间没有变化。由于乙醇吸附性主要取决于土壤孔径，最后的发现可能意味着酸性砂质土壤的孔径在演替过程中没有变化。