Soil water repellency as a potential parameter in rainfall‐runoff modelling: experimental evidence at point to catchment scales from Portugal
Soil water repellency as a potential parameter in rainfall‐runoff modelling: experimental evidence at point to catchment scales from Portugal
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DOI：
10.1002/hyp.1129
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发表时间：
2003-02
影响因子：
3.2
通讯作者：
S. Doerr;A. Ferreira;R. Walsh;R. Shakesby;G. Leighton-Boyce;C. Coelho
中科院分区：
文献类型：
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作者：
S. Doerr;A. Ferreira;R. Walsh;R. Shakesby;G. Leighton-Boyce;C. Coelho
土壤的拒水性通常被认为能增强径流响应，因此在水文模型中代表了一个潜在的重要因素。然而，量化其影响的尝试要么集中在土壤剖面或地块尺度上，要么无法明确地将驱避效应与其他水文重要参数分离开来。通过比较同一土壤或地形在高度排斥和可湿性状态下的一系列尺度的反应，从而限制了其他变量的影响，从而解决了这一研究缺口。利用实验室湿润和降雨模拟实验，在点（0.002 m2）和小样地尺度（0.12 m2）以及样地（16 m2）和集水区尺度（0.33 km2）对葡萄牙中北部森林土壤的水文响应进行了评估。
Soil water repellency is generally thought to enhance runoff responses, thus representing a potentially important factor in hydrological modelling. Attempts to quantify its impacts have, however, either focused on soil profiles or plot scales and/or have been unable unequivocally to isolate repellency effects from other hydrologically important parameters. This research gap is addressed here by comparing responses of the same soil or terrain at a range of scales in highly repellent and wettable states, thereby limiting the impact of other variables. Hydrological responses of forest soils in north‐central Portugal are assessed using laboratory wetting and rainfall simulation experiments at the point (0·002 m2) and microplot scales (0·12 m2), and field runoff responses from plot (16 m2) and catchment scales (0·33 km2).