土壤斥水性及其对坡面产流的影响研究进展

doi:10.11820/dlkxjz.2010.07.012

Abstract

Abstract:

Water repellency (hydrophobicity) is a property of soils which increases local overland flow and causes soil degradation and has been concerned broadly. Important advances in the researches on the temporal and spatial variation of water repellency and its effects on overland flow generation have been achieved since 2000. This review summaries the last decade work on the effects of soil water repellency on surface runoff generation on the base of reviewing the cause, measurement and temporal and spatial variation of soil water repellency. The main effects include: 1) it has the effects of increasing the infiltration rate and surface runoff significantly and changing the pattern of runoff generation; 2) the persistency and the intensity of soil water repellency are the key factors affecting surface runoff generation; 3) the influence of soil water repellency on runoff generation has scale effects. The influence is significant at point and plot scales, while not notable at a lager scale. However, the impacts of soil water repellency on overland flow generation should be further clarified and researched quantitatively. Soil water repellency, as a factor affecting runoff generation, should be considered in the future researches on runoff generation.

Key words: infiltration, overland flow generation, soil water repellency

MIN Leilei,YU Jingjie. Progress in the Research of Soil Water Repellency and Its Influences on Overland Flow Generation[J].PROGRESS IN GEOGRAPHY, 2010, 29(7): 855-860.

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Progress in the Research of Soil Water Repellency and Its Influences on Overland Flow Generation

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