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Role of slope on infiltration: a review
Journal of Hydrology ( IF 5.9 ) Pub Date : 2018-02-01 , DOI: 10.1016/j.jhydrol.2018.01.019
Renato Morbidelli , Carla Saltalippi , Alessia Flammini , Rao S. Govindaraju

Abstract Partitioning of rainfall at the soil-atmosphere interface is important for both surface and subsurface hydrology, and influences many events of major hydrologic interest such as runoff generation, aquifer recharge, and transport of pollutants in surface waters as well as the vadose zone. This partitioning is achieved through the process of infiltration that has been widely investigated at the local scale, and more recently also at the field scale, by models that were designed for horizontal surfaces. However, infiltration, overland flows, and deep flows in most real situations are generated by rainfall over sloping surfaces that bring in additional effects. Therefore, existing models for local infiltration into homogeneous and layered soils and those as for field-scale infiltration, have to be adapted to account for the effects of surface slope. Various studies have investigated the role of surface slope on infiltration based on a theoretical formulations for the dynamics of infiltration, extensions of the Green-Ampt approach, and from laboratory and field experiments. However, conflicting results have been reported in the scientific literature on the role of surface slope on infiltration. We summarize the salient points from previous studies and provide plausible reasons for discrepancies in conclusions of previous authors, thus leading to a critical assessment of the current state of our understanding on this subject. We offer suggestions for future efforts to advance our knowledge of infiltration over sloping surfaces.

中文翻译:

坡度对入渗的作用:综述

摘要 土壤-大气界面降雨的分配对地表和地下水文学都很重要,并影响许多具有重大水文意义的事件,如径流生成、含水层补给、地表水和包气带中污染物的输送。这种划分是通过渗透过程实现的,渗透过程在局部尺度上得到了广泛研究,最近也在现场尺度上通过为水平表面设计的模型来实现。然而,在大多数实际情况下,下渗、地表流和深流是由斜坡上的降雨产生的,这些降雨会带来额外的影响。因此,现有的均匀层状土壤局部入渗模型和田间尺度入渗模型,必须进行调整以考虑表面坡度的影响。各种研究已经基于渗透动力学的理论公式、Green-Ampt 方法的扩展以及实验室和现场实验研究了表面坡度对渗透的作用。然而,关于地表坡度对入渗作用的科学文献报道了相互矛盾的结果。我们总结了先前研究的要点,并为先前作者的结论存在差异提供了合理的原因,从而对我们对该主题的当前理解状态进行了批判性评估。我们为未来的努力提供建议,以提高我们对倾斜表面渗透的了解。各种研究已经基于渗透动力学的理论公式、Green-Ampt 方法的扩展以及实验室和现场实验研究了表面坡度对渗透的作用。然而,关于地表坡度对入渗作用的科学文献报道了相互矛盾的结果。我们总结了先前研究的要点,并为先前作者的结论存在差异提供了合理的理由,从而对我们对该主题的当前理解状态进行了批判性评估。我们为未来的努力提供建议,以提高我们对倾斜表面渗透的了解。各种研究已经基于渗透动力学的理论公式、Green-Ampt 方法的扩展以及实验室和现场实验研究了表面坡度对渗透的作用。然而,关于地表坡度对入渗作用的科学文献报道了相互矛盾的结果。我们总结了先前研究的要点,并为先前作者的结论存在差异提供了合理的理由,从而对我们对该主题的当前理解状态进行了批判性评估。我们为未来的努力提供建议,以提高我们对倾斜表面渗透的了解。关于地表坡度对入渗作用的科学文献报道了相互矛盾的结果。我们总结了先前研究的要点,并为先前作者的结论存在差异提供了合理的理由,从而对我们对该主题的当前理解状态进行了批判性评估。我们为未来的努力提供建议,以提高我们对倾斜表面渗透的了解。关于地表坡度对入渗作用的科学文献报道了相互矛盾的结果。我们总结了先前研究的要点,并为先前作者的结论存在差异提供了合理的理由,从而对我们对该主题的当前理解状态进行了批判性评估。我们为未来的努力提供建议,以提高我们对倾斜表面渗透的了解。
更新日期:2018-02-01
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