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Influence of Gravel Mulch on Rainfall Interception under Simulated Rainfall

机译：砾石覆盖物对模拟降雨下降雨拦截的影响

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摘要

To understand the hydrological outcomes of interception by gravel mulches, rainfall simulation experiments were conducted in the loess regions of northwestern China. The rainfall interception decreased with gravel size but increased with the thickness of the gravel mulch layer, following two exponential functions. Interception was 15.1% of the gross rainfall at 1 cm thickness, followed by 17.2, 20.9, 30.5 and 45.6 % at 3, 5, 7 and 10 cm thickness, respectively. For the equivalent gravel grain size of 3.43 mm, relative interception was 45.6%, which was about 1.1, 1.2, 1.4 and 2.3 times higher than that for the equivalent grain size of 11.01, 19.31, 32.8 and 43.72 mm, respectively.
机译：为了了解砾石覆盖物拦截的水文结果，在中国西北部的黄土地区进行了降雨模拟实验。 降雨拦截随着砾石尺寸而减小，但随着两个指数函数，砾石覆盖层的厚度随着砾石覆盖层的厚度而增加。 截取为1厘米的粗糙降雨量为1厘米，其次分别为17.2,20.9,30.5和35.6％，分别为3,5,7和10cm厚度。 对于等效砾石粒径为3.43mm，相对拦截分别为45.6％，比同等粒径为11.01,19.31,32.8和43.72mm的约1.1,1.2,1.4和2.3倍。

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