一种新的土壤冻融特征曲线模型
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付子腾, 吴青柏, DYCK Miles, 何海龙
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A new model to describe soil freezing-thawing characteristic curve
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Ziteng FU, Qingbai WU, Miles DYCK, Hailong HE
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表3 五个初始含水量下分别得到的参数值及其在不同初始含水量情况下的统计指标（加黑数值表示该含水量下对应的指标值）
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Table 3 The values of parameter α and β corresponding to the five initial water content θinit and their statistical indexes （Note： the corresponding index under initial moisture content θinitis indicated in bold type）
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| 不同初始含水量下的参数值 | 初始含水量/（cm³·cm-³） | RMSE/（cm3·cm-3） | AD/（cm3·cm-3） | NSE | 综合指标 |
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| θinit=0.254， α=1.336， β=2.071 | 0.459 | 0.029 | -0.022 | 0.922 | RMSE=0.017 AD=-0.011 NSE=0.964 | | 0.398 | 0.014 | -0.009 | 0.982 | | 0.357 | 0.014 | -0.011 | 0.975 | | 0.313 | 0.013 | -0.008 | 0.975 | | 0.254 | 0.009 | -0.009 | 0.980 | | θinit=0.313， α=1.351， β=2.062 | 0.459 | 0.028 | -0.022 | 0.923 | RMSE=0.017 AD=-0.011 NSE=0.964 | | 0.398 | 0.013 | -0.009 | 0.982 | | 0.357 | 0.014 | -0.011 | 0.975 | | 0.313 | 0.013 | -0.008 | 0.975 | | 0.254 | 0.090 | -0.060 | 0.981 | | θinit=0.357， α=1.385， β=2.062 | 0.459 | 0.028 | -0.021 | 0.928 | RMSE=0.016 AD=-0.011 NSE=0.967 | | 0.398 | 0.013 | -0.009 | 0.984 | | 0.357 | 0.013 | -0.01 | 0.978 | | 0.313 | 0.012 | -0.008 | 0.977 | | 0.254 | 0.008 | -0.006 | 0.983 | | θinit=0.398， α=1.318， β=2.082 | 0.459 | 0.029 | -0.022 | 0.921 | RMSE=0.017 AD=-0.011 NSE=0.964 | | 0.398 | 0.014 | -0.009 | 0.982 | | 0.357 | 0.014 | -0.011 | 0.975 | | 0.313 | 0.013 | -0.008 | 0.975 | | 0.254 | 0.009 | -0.006 | 0.980 | | θinit=0.459， α=1.761， β=1.972 | 0.459 | 0.025 | -0.023 | 0.942 | RMSE=0.016 AD=-0.011 NSE=0.969 | | 0.398 | 0.014 | -0.010 | 0.982 | | 0.357 | 0.013 | -0.011 | 0.978 | | 0.313 | 0.013 | -0.009 | 0.972 | | 0.254 | 0.008 | -0.007 | 0.981 |
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