Abstract
Simulated rainfall experiment on loess slope. By using Artec Eva handheld three-dimensional (3D) scanner to carry out high-precision scanning of loess slope runoff plots before and after each rainfall, quantitative analysis of slope soil erosion. The results show that using the handheld 3D scanner to scan the slope before and after rainfall, the calculated error of soil erosion is small. The calculated errors of 7 times were -1.428%, 2.843%, -3.189%, 1.141%, -0.945%, -3.240% and 1.287%, respectively. The calculated errors were within ± 4%. Using this scanner, the distribution of slope erosion can be observed very intuitively, and the slope erosion volume and soil erosion amount can be calculated quickly and accurately.
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