沙层特性对沙盖黄土坡面产流产沙变化贡献的定量分析

曹晓娟,谢林妤,张风宝,杨明义,李占斌

Quantifying the contributions of sand layer characteristic to variations of runoff and sediment yields from sand-covered loess slopes during simulated rainfall

CAO Xiaojuan,XIE Linyu,ZHANG Fengbao,YANG Mingyi,LI Zhanbin

表4 各因子对不同降雨历时总产流量影响的显著性及贡献率

Tab. 4 Significance and potential contributions of different factors to total runoff for different rainfall durations

降雨历时(min) 覆沙厚度(cm) 粒径组成(%) 交互作用 误差 Sig. PF Sig. PF Sig. PF PF 15 0.000*** 46.62 0.001*** 13.11 0.000*** 26.22 14.05 30 0.000*** 41.10 0.000*** 27.87 0.001** 18.28 12.75 45 0.000*** 47.05 0.000*** 24.57 0.001** 16.63 11.74 60 0.000*** 48.94 0.000*** 24.27 0.006** 13.12 13.68 75 0.000*** 46.63 0.000*** 21.94 0.008** 14.63 16.80 90 0.000*** 45.13 0.001** 19.68 0.011* 15.64 19.55