一种新的土壤冻融特征曲线模型
付子腾, 吴青柏, DYCK Miles, 何海龙

A new model to describe soil freezing-thawing characteristic curve
Ziteng FU, Qingbai WU, Miles DYCK, Hailong HE
表5 式(18)和式(19)在不同溶质浓度土壤中的拟合指标,式(19)中Tf的值分别用经验公式(20)计算和参数拟合
Table 5 The statistical indexes of Eq.(18) and Eq.(19) in different soil solute concentrations, the values of Tfin Eq.(19) are calculated by the Eq.(20) and by parameter fitting, respectively
条件溶质浓度/(g·L-1 NaCl)αβTf /℃RMSE/(cm3·cm-3AD/(cm3·cm-3NSE综合指标
不考虑Tf ,用式(19)计算018.411.460.015-0.00050.951

RMSE=0.014

AD=0.00007

NSE=0.960

101.871.860.005-0.00020.992
200.652.420.0170.00200.952
350.332.810.016-0.00010.877
考虑Tf,用式(20)计算,且Tf通过经验公式得到018.411.4600.015-0.00500.951

RMSE=0.013

AD=-0.0002

NSE=0.965

102.891.700.610.006-0.00030.984
201.581.811.220.0100.00070.985
351.151.762.090.0170.00020.856
考虑Tf,用式(20)计算,且Tf通过参数拟合得到018.411.4600.015-0.0050.951

RMSE=0.013

AD=-0.0002

NSE=0.965

101.871.8600.005-0.0020.992
203.981.524.330.003-0.0011
350.572.180.600.017-0.0020.897