水土保持研究2025，Vol.32Issue(4)：124-130,7.DOI:10.13869/j.cnki.rswc.2025.04.031
植被覆盖和坡度对铁尾矿边坡产流产沙的影响
Effects of vegetation coverage and slope on runoff and sediment yield on iron tailing slopes
摘要
Abstract
[Objective]This study investigates the effects of shrub-grass mixed vegetation coverage and slope on runoff and sediment yield of iron tailing slopes,reveals the law of rainfall on the occurrence of water and soil loss on iron tailing slopes,and provides a theoretical basis for controlling water and soil loss and for ecological restoration of iron tailing slopes.[Methods]Artificial rainfall simulation experiments were used to analyze runoff and sediment yield under different vegetation coverages(30%,60%,90%),slopes(20°,25°),and rainfall intensities(60 mm/h,120 mm/h).[Results]Given the same rainfall intensity,an increase of shrub-grass mixed vegetation coverage could effectively delay the initiation time of runoff on iron tailing slopes,and the slope runoff rate and soil erosion rate decreased with the increase of vegetation coverage.The higher the vegetation coverage,the smaller the fluctuation range of runoff rate and erosion rate,and the more stable the erosion process.The effect of slope degree on runoff and sediment yield was opposite to that of vegetation coverage.The cumulative sediment yield increased with the increase of cumulative runoff,and there was a power function relationship between them(R2>0.96).[Conclusion]For iron tailing slopes,increasing the surface vegetation coverage can effectively reduce the runoff and sediment yield,and effectively prevent and control water and soil loss of the slopes.关键词
铁尾矿坡面/人工模拟降雨试验/植被覆盖度/坡度/产流产沙Key words
iron tailing slopes/artificial rainfall simulation experiment/vegetation coverage/slope/runoff and sediment yield分类
农业科技引用本文复制引用
海龙,樊国莉,赵亚波,王嘉瑞..植被覆盖和坡度对铁尾矿边坡产流产沙的影响[J].水土保持研究,2025,32(4):124-130,7.基金项目
辽宁省教育厅基本科研项目"低品质固废复合膏体充填采矿围岩变形与地压控制研究"(LJ242410147078) （LJ242410147078）
本溪钢铁(集团)矿业有限责任公司歪头山铁矿科研项目"高压辊磨超细尾矿制备复合生态复垦土技术研究" （集团）
