敦煌-格尔木铁路沿线荒漠灌丛风动力环境与沉积物粒度特征
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张宏雪, 张克存, 安志山, 鱼燕萍
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Wind dynamic environment and sediment grain size characteristics of shrub desert along Dunhuang-Golmud Railway
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Hongxue Zhang, Kecun Zhang, Zhishan An, Yanping Yu
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表1 荒漠灌丛区不同位置的粒径组分含量与参数
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Table 1 Grain-size component content and parameters at different position along the railway in the shrub desert
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采样 位置 | 样品编号 | 粒径组分 | 粒径参数 |
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粉沙 <63 μm | 极细沙 63~125 μm | 细沙 125~250 μm | 中沙 250~500 μm | 粗沙500~ 1 000 μm | 极粗沙 1 000~2 000 μm | 砾石 >2 000 μm | Mz/μm | σ | SK | Kg |
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北侧 灌丛 | 1 | 61.23 | 29.58 | 9.19 | 0.00 | 0.00 | 0.00 | 0.00 | 35.92 | 1.85 | 0.47 | 1.04 | 2 | 57.44 | 26.75 | 10.03 | 0.00 | 0.04 | 3.29 | 2.44 | 41.56 | 2.30 | 0.16 | 1.63 | 3 | 62.73 | 27.17 | 10.05 | 0.05 | 0.00 | 0.00 | 0.00 | 35.05 | 1.87 | 0.43 | 1.03 | 北侧 边坡 | 1 | 27.58 | 14.06 | 19.28 | 18.99 | 17.88 | 2.21 | 0.00 | 149.54 | 2.08 | 0.24 | 0.95 | 2 | 30.26 | 17.31 | 20.07 | 16.98 | 13.27 | 1.83 | 0.28 | 128.91 | 2.03 | 0.15 | 0.99 | 3 | 38.68 | 19.56 | 22.06 | 16.47 | 3.23 | 0.00 | 0.00 | 85.24 | 1.96 | 0.22 | 1.02 | 南侧 边坡 | 1 | 36.69 | 18.84 | 18.27 | 14.30 | 8.41 | 3.07 | 0.42 | 99.56 | 2.18 | 0.10 | 1.07 | 2 | 37.17 | 20.03 | 17.50 | 15.04 | 10.18 | 0.08 | 0.00 | 99.28 | 2.06 | 0.11 | 1.02 | 3 | 30.04 | 15.45 | 16.40 | 15.60 | 18.24 | 3.68 | 0.60 | 140.56 | 2.25 | 0.16 | 0.95 | 南侧 灌丛 | 1 | 61.16 | 27.34 | 11.25 | 0.25 | 0.00 | 0.00 | 0.00 | 36.26 | 1.88 | 0.43 | 1.03 | 2 | 55.42 | 25.52 | 12.65 | 0.24 | 0.09 | 3.85 | 2.23 | 44.45 | 2.32 | 0.15 | 1.61 | 3 | 40.66 | 31.22 | 13.68 | 0.05 | 0.97 | 8.52 | 4.89 | 69.84 | 2.19 | 0.08 | 2.12 |
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