The aim of this research is to investigate the influence of slope morphology on the wetting front arrival during rainfall. Temporal variations in soil water content at different times and depths are measured in a slope gully and in a non-gullied slope. The arrival time of wetting front (Ts) and the time when soil shear strength reaches its lowest level during rainfall (Te) at different depths and at different elevations in the slopes and in rainfall events with different intensities are collected in the study and are used to represent the hydrological behavior in a slope. Ts and Te values noticeably decrease with depth in the slope gully lower elevation during moderate intensity rainfall, whereas these values increase with depth in a non-gullied slope. Rainfall characteristics considerably affect the behavior of Ts and Te values in the slope gully. Ts values vary slightly along depths during extremely high intensity rainfall compared with that of moderate rainfall intensity. Slope morphology and rainfall characteristics considerably affect the hydrological behavior in a slope. Subsurface lateral flow in a slope gully during rainfall is more conspicuous than in a non-gullied slope due to its topographic features. In a landslide prone area, soil instability in a slope gully may occur faster than in a non-gullied slope during severe rainfall activity.

这项研究的目的是研究降雨期间坡度形态对湿润前沿的影响。在坡度沟和非沟状坡度中，测量了不同时间和深度土壤水分的时间变化。在研究中收集了在不同深度和不同海拔，不同强度的降雨事件中，湿润锋的到达时间（Ts）和降雨期间的土壤剪切强度达到最低水平（Te）的时间，以及强度不同的降雨事件。代表斜坡上的水文行为。在中等强度降雨期间，Ts和Te值会随着坡度在沟壑较低海拔的深度而显着降低，而在非沟壑坡度中，这些值会随深度而增加。降雨特征极大地影响了坡沟中Ts和Te值的行为。与极高的降雨强度相比，在极高的降雨强度下，Ts值沿深度变化很小。斜坡的形态和降雨特征极大地影响了斜坡的水文行为。由于其地形特征，降雨期间坡沟中的地下横向流比非沟壑坡中的地下流更为明显。在容易发生滑坡的地区，在剧烈降雨活动中，坡度沟壑区的土壤失稳可能比非沟壑区的坡度发生得更快。由于其地形特征，降雨期间坡沟中的地下横向流比非沟壑坡中的地下流更为明显。在容易发生滑坡的地区，在剧烈降雨活动中，坡度沟壑区的土壤失稳可能比非沟壑区的坡度发生得更快。由于其地形特征，降雨期间坡沟中的地下横向流比非沟壑坡中的地下流更为明显。在容易发生滑坡的地区，在剧烈降雨活动中，坡度沟壑区的土壤失稳可能比非沟壑区的坡度发生得更快。