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| Soil erosion and water loss laws of mine waste slope |
| 1. Forestry College, Shanxi Agricultural University, 030801, Taigu,Shanxi; 2. Institute of Hydrogeology and Environmental Geology, CAGS, 050061,Shijiazhuang;3. Hydraulic Construction and Development Center of Shanxi,030002,Taiyuan:China) |
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Abstract Based on runoff scouring experiment, the laws of soil erosion and water loss of mine waste slope were studied. The results showed that:1)In the designed runoff of 2.0 and 2.5 L/ min, the runoff process occurred single peak or several peaks curve with no obvious laws. When the designed runoff increased to 3.0 and 3.5 L/ min, the runoff process performed almost single peak curve, and the peak value appeared earlier with similar laws. 2)The average runoff amount increased rapidly with the increase of designed runoff and the land slope, and the tendency agreed to power equation. The designed runoff played bigger effects on the average runoff than land slope. 3) The average watershed sediment yield increased rapidly with the increase of designed runoff and the land slope, the tendency agreed to power relationship, and the effects of designed runoff on the average watershed sediment yield was greater than that of land slope.
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Received: 20 September 2012
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