目的为揭示不同入流形式对坡面侵蚀产沙及其水动力学特性的影响。方法基于人工模拟入流冲刷试验,试验设计2种入流形式(股流、面流)和3种入流量(4、8、12 L/min),研究坡面侵蚀过程对入流形式响应机制。结果1)股流和面流下,坡面产流产沙过程基本一致,产流过程均呈现从跃变到稳定,产沙过程呈现先快速降低再波动减小趋势;相比面流,土壤侵蚀率在股流下表现出更强的波动性,其变异系数高达71.49%~111.94%。2)坡面平均流速在股流下显著高于面流(p<0.05),其幅度高达28.15%~52.85%。3)
陈岳岩 +5 more
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