Abstract—

Splash erosion, the first step in water erosion process, occurs because of raindrops collusion with soil aggregates and pushing soil particulates into the air. The objective of this study was to test the usability of water sensitive paper (WSPs) in assessment of splash erosion. Soil losses from three texturally different soils by splash erosion were determined under artificial rainfall conditions as a function of splash distance and direction. The results indicated that the amount of soil removed by splash erosion was significantly affected by soil texture, splash direction and distance, and was the highest in clay soil and the lowest in sandy loamy soil. About half of the splashed soil material moved down slope, 34% in the lateral direction, and 17% moved upslope. A significant positive correlation between the WSPs-D10 diameter and the WSPs-surface coverage rate was obtained, which indicates that the higher the D10 diameter, the higher the surface coverage rate. The results obtained in this study reveal that the WSPs cards could successfully be used and its parameters (WSPs-D10 diameter and WSPs-surface coverage rate) might be considered as a new approach in assessing and evaluating splash erosion.

中文翻译：

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防水纸（WSP）在评估飞溅侵蚀中的可用性

摘要-

飞溅侵蚀是水蚀过程的第一步，这是由于雨滴与土壤聚集体勾结并将土壤颗粒推入空气中而发生的。这项研究的目的是测试水敏纸（WSPs）在飞溅腐蚀评估中的可用性。在人工降雨条件下，确定了三种质地不同的土壤因飞溅侵蚀而造成的土壤损失，它们是飞溅距离和方向的函数。结果表明，喷溅侵蚀去除的土壤量受土壤质地，喷溅方向和距离的影响很大，在黏土中最高，在沙质壤土中最低。大约一半的飞溅土壤物质向下倾斜，横向34％，向上倾斜17％。WSPs-D10直径与WSPs表面覆盖率之间存在显着的正相关关系，这表明D10直径越大，表面覆盖率越高。这项研究获得的结果表明，可以成功使用WSP卡，并且可以将其参数（WSPs-D10直径和WSPs表面覆盖率）视为评估和评估飞溅侵蚀的一种新方法。