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3 以SM-3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 3 Simulation efficiency parameters of soil water content by ELM model with SM-3 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/% | 3.46 | 2.60 | 2.90 | 3.62 | 2.76 | 2.49 | 2.30 | 2.64 | 2.36 | 1.84 | 2.14 | 2.88 | RMSE/% | 3.96 | 4.13 | 4.60 | 6.17 | 4.02 | 3.61 | 3.30 | 3.95 | 3.54 | 2.89 | 3.64 | 5.71 | R | 0.95 | 0.96 | 0.95 | 0.90 | 0.92 | 0.94 | 0.95 | 0.93 | 0.94 | 0.98 | 0.95 | 0.87 | NSE | 0.91 | 0.91 | 0.89 | 0.81 | 0.85 | 0.88 | 0.90 | 0.86 | 0.88 | 0.94 | 0.90 | 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 | 2.07 | 1.88 | 2.35 | 2.67 | 3.75 | 3.58 | 3.94 | 1.89 | 1.95 | 1.80 | 1.90 | RMSE/% | 2.26 | 2.90 | 2.42 | 3.06 | 3.79 | 5.39 | 4.92 | 5.48 | 2.71 | 2.90 | 2.76 | 2.90 | R | 0.97 | 0.97 | 0.98 | 0.96 | 0.95 | 0.95 | 0.97 | 0.95 | 0.95 | 0.94 | 0.95 | 0.95 | NSE | 0.94 | 0.91 | 0.94 | 0.90 | 0.91 | 0.86 | 0.88 | 0.86 | 0.90 | 0.88 | 0.90 | 0.89 |
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