Beczek Michał, Ryżak Magdalena, Sochan Agata, Mazur Rafał, Polakowski Cezary, Bieganowski Andrzej
Institute of Agrophysics PAS, Lublin, Poland.
PLoS One. 2017 Jul 27;12(7):e0181974. doi: 10.1371/journal.pone.0181974. eCollection 2017.
Splash is the first stage of a negative phenomenon-soil erosion. The aim of this work was to describe the crown formation quantitatively (as part of the splash erosion) and compare the course of this phenomenon on the thin water film formed on a smooth glass surface and on the surface of saturated soil. The height of the falling water drop was 1.5 m. The observation of the crowns was carried out by high-speed cameras. The static and dynamic parameters of crown formation were analysed. It was found that the crowns formed on the water film covering the saturated soil surface were smaller and the time intervals of their existence were shorter. In addition, the shapes of the crowns were different from those created on the water layer covering the glass surface. These differences can be explained by the slightly different values of surface tension and viscosity of the soil solution, the greater roughness of the soil surface and the lower thickness of the water film on the soil surface.
溅蚀是一种负面现象——土壤侵蚀的第一阶段。这项工作的目的是定量描述冠层形成（作为溅蚀的一部分），并比较在光滑玻璃表面和饱和土壤表面形成的薄水膜上这一现象的过程。下落水滴的高度为1.5米。通过高速摄像机对冠层进行观测。分析了冠层形成的静态和动态参数。结果发现，在覆盖饱和土壤表面的水膜上形成的冠层较小，其存在的时间间隔较短。此外，冠层的形状与在覆盖玻璃表面的水层上形成的形状不同。这些差异可以用土壤溶液表面张力和粘度的略微不同的值、土壤表面更大的粗糙度以及土壤表面水膜的更低厚度来解释。
