青藏高原多年冻土区不同海拔土壤含水量对气候变化的响应
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张方园, 常娟, 刘健, 孙文军
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Response of soil water content at different altitudes to climate change in the permafrost region of the Qinghai-Tibet Plateau: an ELM model analysis
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Fangyuan ZHANG, Juan CHANG, Jian LIU, Wenjun SUN
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表2 以SM-1为输入变量ELM模型对土壤含水量的模拟效率参数
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Table 2 Simulation efficiency parameters of soil water content by ELM model with SM-1 as the input variable
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统计参数 | 坡上20 cm | 坡上40 cm | 坡上65 cm |
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训练期 | SM+1 | SM+7 | SM+14 | 训练期 | SM+1 | SM+7 | SM+14 | 训练期 | SM+1 | SM+7 | SM+14 |
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MAE/% | 2.77 | 3.17 | 3.01 | 3.44 | 2.62 | 2.35 | 2.28 | 2.56 | 2.54 | 2.10 | 2.36 | 2.98 | RMSE/% | 4.28 | 4.57 | 4.41 | 5.42 | 3.72 | 3.61 | 3.41 | 3.96 | 3.69 | 3.34 | 3.88 | 5.67 | R | 0.95 | 0.96 | 0.96 | 0.93 | 0.94 | 0.94 | 0.95 | 0.93 | 0.94 | 0.97 | 0.95 | 0.87 | NSE | 0.89 | 0.89 | 0.90 | 0.85 | 0.87 | 0.88 | 0.90 | 0.86 | 0.87 | 0.91 | 0.88 | 0.75 | 统计参数 | 坡下20 cm | 坡下40 cm | 坡下65 cm | 训练期 | SM+1 | SM+7 | SM+14 | 训练期 | SM+1 | SM+7 | SM+14 | 训练期 | SM+1 | SM+7 | SM+14 | MAE/% | 1.53 | 2.14 | 1.97 | 2.41 | 2.58 | 3.64 | 3.44 | 3.83 | 1.84 | 2.05 | 1.75 | 1.95 | RMSE/% | 2.23 | 2.93 | 2.60 | 3.25 | 3.63 | 5.23 | 4.75 | 5.50 | 2.55 | 2.95 | 2.60 | 2.90 | R | 0.97 | 0.97 | 0.98 | 0.96 | 0.96 | 0.96 | 0.97 | 0.95 | 0.95 | 0.94 | 0.96 | 0.94 | NSE | 0.94 | 0.91 | 0.93 | 0.89 | 0.91 | 0.87 | 0.89 | 0.86 | 0.91 | 0.88 | 0.91 | 0.89 |
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